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  Topic: [Xansys] As usual
danbohlen

Replies: 1
Views: 3033

PostForum: XANSYS   Posted: Mon Jun 08, 2015 4:06 am   Subject: [Xansys] As usual
Thanks. My father and uncle both served to WWII.

Although we don't always get it right, I'd like to think our efforts abroad are to make the world a better place.


Dan Bohlen
Senior/ SSt Engineer, ...
  Topic: [Xansys] ANSYS Mechanical Restart Question
danbohlen

Replies: 23
Views: 29675

PostForum: XANSYS   Posted: Fri Jun 05, 2015 5:00 am   Subject: [Xansys] ANSYS Mechanical Restart Question
OK a couple of reasons we tend to turn friction off.

Physical: the parts, when assembled typically aren't put together in a fashion where the assembler is fighting friction. Not many press fit situa ...
  Topic: [Xansys] ANSYS Mechanical Restart Question
danbohlen

Replies: 23
Views: 29675

PostForum: XANSYS   Posted: Fri Jun 05, 2015 4:53 am   Subject: [Xansys] ANSYS Mechanical Restart Question
Old habits, reusing existing models are the typical reasons.

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Erisman Philip
Sent: Thursday, June 04, 2015 4:19 ...
  Topic: [Xansys] ANSYS Mechanical Restart Question
danbohlen

Replies: 23
Views: 29675

PostForum: XANSYS   Posted: Thu Jun 04, 2015 6:03 am   Subject: [Xansys] ANSYS Mechanical Restart Question
I guess the part I might be missing from the original question:

Don't you preload the model (assembly) and then run operating conditions? So preload once, then maybe evaluating a bunch of operating ...
  Topic: [Xansys] ANSYS Mechanical Restart Question
danbohlen

Replies: 23
Views: 29675

PostForum: XANSYS   Posted: Thu Jun 04, 2015 5:58 am   Subject: [Xansys] ANSYS Mechanical Restart Question
I might be missing the point of this thread, but here goes.....

Probably the biggest issue with preload I have is when I using surface to surface contact, no pretension elements, and I don't hard co ...
  Topic: [Xansys] [APDL] The rebirth of DEBUG
danbohlen

Replies: 2
Views: 5247

PostForum: XANSYS   Posted: Wed Jun 03, 2015 5:35 am   Subject: [Xansys] [APDL] The rebirth of DEBUG
Yea a win!

I wish Ansys Inc. would truly ignore classic altogether. Wish they busied themselves enough trying to make WB a workable tool to be too busy to yank useful things (like debug and most ele ...
  Topic: [Xansys] FW: Anyone ever see this error before?
danbohlen

Replies: 2
Views: 4303

PostForum: XANSYS   Posted: Mon Jun 01, 2015 10:16 am   Subject: [Xansys] FW: Anyone ever see this error before?
Yes and yes. I should have mentioned that.

Best I can figure, with some help from our ASD, is that I must have a corrupted .rst with the same name sitting in the directory at the end of the solutio ...
  Topic: [Xansys] FW: Anyone ever see this error before?
danbohlen

Replies: 2
Views: 4303

PostForum: XANSYS   Posted: Mon Jun 01, 2015 6:38 am   Subject: [Xansys] FW: Anyone ever see this error before?
I restarted an Ansys run. For the output below the time point solved. But failed to write the .rst file.

Funny part about the error was that the job wasn't appending a result file.
The result file ...
  Topic: [Xansys] Anyone ever see this error before?
danbohlen

Replies: 0
Views: 3173

PostForum: XANSYS   Posted: Mon Jun 01, 2015 4:59 am   Subject: [Xansys] Anyone ever see this error before?
I restarted an Ansys run. For the output below the time point solved. But failed to write the .rst file.

Funny part about the error was that the job wasn't appending a result file. The result file ...
  Topic: [Xansys] Renumbering of Element numbers and Node Numbers in
danbohlen

Replies: 0
Views: 2469

PostForum: XANSYS   Posted: Tue May 19, 2015 11:25 am   Subject: [Xansys] Renumbering of Element numbers and Node Numbers in
We've found that at time to subtract 2 sets of results for the identical model we have to use the NOORDER,ON.

If you were doing this in the beginning of a job you might want to WSORT or WAVES first.
...
  Topic: [Xansys] Restart Ansys Solution : Error
danbohlen

Replies: 2
Views: 5270

PostForum: XANSYS   Posted: Mon May 18, 2015 4:10 am   Subject: [Xansys] Restart Ansys Solution : Error
Do help on /config.

I believe is a "start" command you can do in the begin level when you start up Ansys. Not in the /solu phase. (I assume you are using "real man/woman" Ansys ...
  Topic: [Xansys] Restart Ansys Solution : Error
danbohlen

Replies: 2
Views: 5270

PostForum: XANSYS   Posted: Fri May 15, 2015 11:08 am   Subject: [Xansys] Restart Ansys Solution : Error
Has anyone suggested using the /CONFIG,NRES command and change the value to what you need?



-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Balineni, Vinay
Se ...
  Topic: [Xansys] Pressure mapping
danbohlen

Replies: 6
Views: 8344

PostForum: XANSYS   Posted: Fri May 15, 2015 8:04 am   Subject: [Xansys] Pressure mapping
Hi All,

I have a macro that creates an array of pressures and x,y,z coordinates of element face centroids from a model with pressures (the "parent" model")

I have another macro that u ...
  Topic: [Xansys] Blocked .DB Results?
danbohlen

Replies: 9
Views: 9864

PostForum: XANSYS   Posted: Mon May 04, 2015 11:56 am   Subject: [Xansys] Blocked .DB Results?
Wow, so it used to work. Got broken and fixed again - presumably before you ever reported it.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircra ...
  Topic: [Xansys] Blocked .DB Results?
danbohlen

Replies: 9
Views: 9864

PostForum: XANSYS   Posted: Tue Apr 28, 2015 10:22 am   Subject: [Xansys] Blocked .DB Results?
NO attachments on this list - it didn't come through.

Some results may not have been written - look at the output file. There's the OUTRES command that controls it.


Dan Iliedtheresultsarehiddneund ...
  Topic: [Xansys] Merging Two Node Components in pairs
danbohlen

Replies: 13
Views: 12616

PostForum: XANSYS   Posted: Fri Apr 24, 2015 11:11 am   Subject: [Xansys] Merging Two Node Components in pairs
Surface to surface bonded always might work


Dan justhoppinginthemiddleofthisthread Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Tue Apr 14, 2015 12:21 pm   Subject: [Xansys] [OT: Female scientists
Think you are being mistreated or disrespected? Maybe that stems from a belief smarts=success or respect or whatever.

Per Dilbert....

http://dilbert.com/strip/1992-02-03

JK


Dan Bohlen
Senior/ S ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Tue Apr 14, 2015 10:47 am   Subject: [Xansys] [OT: Female scientists
True, in many ways we aren't born equal - just a saying. (Maybe equal in a deity's eye - if one believes in one.) Maybe people feel better being "equal" having some skills and not others
...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Tue Apr 14, 2015 10:44 am   Subject: [Xansys] [OT: Female scientists
Hi Joe,

If I think of where I read it.

All studies of that type are statistical and any individual situation could turn into a cat fight.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
ST ...
  Topic: Nonlinear material model
danbohlen

Replies: 8
Views: 10878

PostForum: XANSYS   Posted: Tue Apr 14, 2015 10:42 am   Subject: [Xansys] Nonlinear material model
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 12:55 pm   Subject: [Xansys] [OT: Female scientists
While there is some evolutionary science that might point that why.

Consider for most human evolution human babies drank human milk. And the tended to do that much longer than they do now (4-6 years ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 12:55 pm   Subject: [Xansys] [OT: Female scientists
That's the guy I was thinking of.


Defines the term "dead right"


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neuma ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 12:55 pm   Subject: [Xansys] [OT: Female scientists
Did the males you were competing against have a support network at home? A wife? Live with a mother? :-)

Other studies show women are more cooperative in the work place and men more "competit ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 12:38 pm   Subject: [Xansys] [OT: Female scientists
Well to dreg up an old book. In "The Bell Curve" or maybe later literature made the case was made that in many attributes men tend to have a wider variation of skill levels than women. I t ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 12:26 pm   Subject: [Xansys] [OT: Female scientists
There's a show, "I almost got away with it" and always "Forensic files" to hone those skills two. Cable TV is great.

The key is no body. No body, no murder. The hubbie just ra ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 9:22 am   Subject: [Xansys] [OT: Female scientists
Glass ceiling broken then!

The percentage of females in ME undergrad has been steady at about 15% for a long time.

When talking about under representing - I was reading an article a lunch that only ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 8:06 am   Subject: [Xansys] [OT: Female scientists
amen

-----Original Message-----
From: Xansys I believe there are probably as many reason why women (and many man)
leave science and engineering jobs. My experience is that most of them
leave engine ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 8:05 am   Subject: [Xansys] [OT: Female scientists
I think there's is plenty of REAL science out there that boys and girls ARE different far beyond the obvious physically differences.

It is prolly a good evolutionary thing too.

There's no more rea ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 8:00 am   Subject: [Xansys] [OT: Female scientists
Sounds like a bad place to work. I'd dare say work at GE or any other big place.

They do the whole diversity thing pretty well.

Never seen anyone here who was really good get held back or mistreate ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 63
Views: 63419

PostForum: XANSYS   Posted: Mon Apr 13, 2015 7:54 am   Subject: [Xansys] [OT: Female scientists
Fortunately, here at aviation - the "rank and yank" only occurred during business downturns. (every 5-10 years) We do the rankings, raises are parsed out based on it. So a bottom 10% has ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 22
Views: 20220

PostForum: XANSYS   Posted: Fri Apr 10, 2015 11:22 am   Subject: [Xansys] [OT: Female scientists
Why are they leaving? Intelligence and wisdom. My daughter graduates with a BSME this spring. She knows what I do and has zero interest. She's going to be a project manager for a large grocer reva ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 22
Views: 20220

PostForum: XANSYS   Posted: Fri Apr 10, 2015 10:47 am   Subject: [Xansys] [OT: Female scientists
I wouldn't mind if Janet thought I was a "hot dude" (I'd question her taste), but if Joe thought so....


Dan notthatthere'sanythingwrongwiththat Bohlen
Senior/ SSt Engineer, Military HPT ...
  Topic: [Xansys] [OT: Female scientists
danbohlen

Replies: 22
Views: 20220

PostForum: XANSYS   Posted: Fri Apr 10, 2015 4:48 am   Subject: [Xansys] [OT: Female scientists
For a sec I thought your were referring to the character in "Blazing Saddles" :-)

Didn't know about the invention stuff....

-----Original Message-----
From: Xansys [mailto:xansys-bounces@ ...
  Topic: WB asking stress vs cycles but I have load vs cyc
danbohlen

Replies: 6
Views: 6254

PostForum: XANSYS   Posted: Fri Apr 10, 2015 3:49 am   Subject: [Xansys] WB asking stress vs cycles but I have load vs cyc
Just curious - what type of part are you doing this for? Just an academic problem or something that will go into production?

Over the years I've seen many posts asking for fatigue data here - and ma ...
  Topic: Get Results - ANSYS Classic
danbohlen

Replies: 12
Views: 13689

PostForum: XANSYS   Posted: Thu Apr 09, 2015 9:45 am   Subject: [Xansys] Get Results - ANSYS Classic
Was waiting for that!

-----Original Message-----
From: Xansys I don't know about WB, but in Real(tm) Man(tm) Ansys(tm) pressures are stored internally as element face pressure - one value per face ...
  Topic: Get Results - ANSYS Classic
danbohlen

Replies: 12
Views: 13689

PostForum: XANSYS   Posted: Thu Apr 09, 2015 4:50 am   Subject: [Xansys] Get Results - ANSYS Classic
I've stood on the sidelines of this question. I think I'm ready to weigh in on it.

If I recall the original question you wanted to interrogate a .db (or rst?) and interpolate a pressure (and some ot ...
  Topic: [Xansys] [WB] What are the differences between rotational ve
danbohlen

Replies: 17
Views: 17020

PostForum: XANSYS   Posted: Wed Apr 08, 2015 1:06 pm   Subject: [Xansys] [WB] What are the differences between rotational ve
I'll try to save you from the wrath of Chris.

It sounds like you analyzing a gear or some linkage.

If you JUST put the moment on the gear you are simulating a locked up, unspinning gear. Like the b ...
  Topic: [Xansys] [WB] What are the differences between rotational ve
danbohlen

Replies: 17
Views: 17020

PostForum: XANSYS   Posted: Tue Apr 07, 2015 1:22 pm   Subject: [Xansys] [WB] What are the differences between rotational ve
Before Chris nails you to a cross...

The nomenclature is a little different and the units.

Your equation is Power = Force*distance/time I assume.

For this equation it is force THROUGH a distance : ...
  Topic: [Xansys] [APDL]: Non-dimensional array reading.
danbohlen

Replies: 2
Views: 4361

PostForum: XANSYS   Posted: Tue Apr 07, 2015 10:16 am   Subject: [Xansys] [APDL]: Non-dimensional array reading.
Just one of the many things Ansys could easily fix if they cared to (free format reading in arrays).

BTW doing this in WB or Real Man/Woman Ansys (my new pet name for Classic)? ;-)

I will tend to f ...
  Topic: [Xansys] [WB] What are the differences between rotational ve
danbohlen

Replies: 17
Views: 17020

PostForum: XANSYS   Posted: Tue Apr 07, 2015 10:12 am   Subject: [Xansys] [WB] What are the differences between rotational ve
Is it just me - or does anybody have any idea what they are talking about......




-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Liran Yang
Sent: Monday, Apr ...
  Topic: Glue areas (~20,000 Areas)
danbohlen

Replies: 6
Views: 8069

PostForum: XANSYS   Posted: Fri Apr 03, 2015 5:00 am   Subject: [Xansys] Glue areas (~20,000 Areas)
Yep, NGEN and EGEN commands are still there ..... at least for now.....

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Andrew Sims
Sent: Thursday, April 02, ...
  Topic: Glue areas (~20,000 Areas)
danbohlen

Replies: 6
Views: 8069

PostForum: XANSYS   Posted: Thu Apr 02, 2015 1:07 pm   Subject: [Xansys] Glue areas (~20,000 Areas)
Hmm - here's some ideas.

Start with one big area and chop it up into the little ones

OR

Map mesh and Assign the materials by location. I little macro finding the location of the centroid of an ...
  Topic: Glue areas (~20,000 Areas)
danbohlen

Replies: 6
Views: 8069

PostForum: XANSYS   Posted: Thu Apr 02, 2015 12:22 pm   Subject: [Xansys] Glue areas (~20,000 Areas)
Not sure. Could you do it in steps? May I ask why you want to generate all these areas, just to recombine them later?



-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Thu Apr 02, 2015 7:07 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
My point exactly. Ansys want to boost sales with sexy interface (WB) - FINE.

Want to ignore current users and only put some newer stuff in MAPDL (why can't classic get a sexy name like "classic ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Tue Mar 31, 2015 12:30 pm   Subject: [Xansys] [APDL] R.I.P. DEBUG
No Junior was the guy comparing MAPDL users to train conductors....

-----Original Message-----
From: Xansys My last post (below) was about as polite (and humorous, I hope) a
response to someone impl ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Tue Mar 31, 2015 9:12 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
Agreed. It would be done in NX here too.

As mentioned earlier in the thread the sales pitch for WB falls short when we already have something that does the job. If WB had beat NX to the punch, we ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Tue Mar 31, 2015 9:01 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
True, and we are talking about the dash board.

Ansys is wasting type and resources on redoing the speedometer design while there is still a weak 4 cylinder engine under the hood....



-----Original ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Tue Mar 31, 2015 8:59 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
I disparage the fact that the tool I use is subject to benign neglect while Ansys focuses all its resources on getting their latest marketing tool to be able to do what MAPDL has been able to do for ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Tue Mar 31, 2015 5:40 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
I think the comparison is apt. Last time I noticed there were still trains around with locomotive drivers. And those drivers are more highly trained than your typical driver and function is a much m ...
  Topic: [Xansys] APDL and WB Evolution (was R.I.P. DEBUG)
danbohlen

Replies: 9
Views: 9599

PostForum: XANSYS   Posted: Sun Mar 29, 2015 5:36 am   Subject: [Xansys] APDL and WB Evolution (was R.I.P. DEBUG)
That's what I have heard for years.

Abaqus was the strongest solver for the class of problems we typically do (same as this poster: contact, structural, vibe, and some non-linear material.

The ironi ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Sun Mar 29, 2015 5:16 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
AMEN

"I get dumbfounded when I see posts here from students doing some crazy non-linear analysis of a porous composite with anisotropic plasticity, friction, and harmonic loading. Stuff I would ...
  Topic: [Xansys] [APDL] 15.0.7 help freezes program
danbohlen

Replies: 12
Views: 13992

PostForum: XANSYS   Posted: Fri Mar 27, 2015 5:09 am   Subject: [Xansys] [APDL] 15.0.7 help freezes program
Hmm

Ben, Think about it the thread is for version 15.0.7.

You are using 14.5 - I believe they changed the help gui between those versions (at least it looks different on the screen)

Ansys 14.5 he ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Fri Mar 27, 2015 5:00 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
As far as "customers" go. I wonder how many users plunk down their own $$ to buy Ansys.

I bet most of the people who "buy" it for their companies are non-users - most users are ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Fri Mar 27, 2015 4:54 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
Old quote from General Motors - "we aren't the business of making cars, we are in the business of making money"

Great, a stock I might want to have (in the short run) , but cars I stayed ...
  Topic: [Xansys] [APDL] 15.0.7 help freezes program
danbohlen

Replies: 12
Views: 13992

PostForum: XANSYS   Posted: Thu Mar 26, 2015 8:34 am   Subject: [Xansys] [APDL] 15.0.7 help freezes program
Thanks.

It is nice to be able to pull up the help without starting Ansys.

-----Original Message-----
From: Xansys Back in the olden days there was way to pull up help outside the
Ansys program - i ...
  Topic: [Xansys] [APDL] 15.0.7 help freezes program
danbohlen

Replies: 12
Views: 13992

PostForum: XANSYS   Posted: Thu Mar 26, 2015 6:51 am   Subject: [Xansys] [APDL] 15.0.7 help freezes program
Yep, running winders here, not LINUX

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Buyukisik, Osman (GE Aviation, US)
Sent: Wednesday, March 25, 2015 5:17 PM ...
  Topic: [Xansys] [APDL] 15.0.7 help freezes program
danbohlen

Replies: 12
Views: 13992

PostForum: XANSYS   Posted: Wed Mar 25, 2015 12:57 pm   Subject: [Xansys] [APDL] 15.0.7 help freezes program
Back in the olden days there was way to pull up help outside the Ansys program - is there a way now?

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Robert Di ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Wed Mar 25, 2015 7:08 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
Ah - I may learn about that soon enough.

GE is dropping our ASD and we'll get our support directly from Ansys. I can't wait! If it is anything like the NX support we get from UG - you will see a l ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Wed Mar 25, 2015 5:01 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
AMEN

We have guys here using V11 :-)

Used to be the even numbered versions were when Ansys added new stuff.

The odd numbered versions were where they fixed the stuff broken in the even numbered ve ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Wed Mar 25, 2015 4:58 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
Yeah, the Ansys boys stop by ever few years and try to sell us on it. Nothing in there we can't do as well or better already. So why learn a new interface just to be fashionable?

They tout their me ...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Wed Mar 25, 2015 4:48 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
What's an SR?

At GE, they keep us unwashed masses away from the Ansys think tank. Part of the reason I started this list!


Dan powertothepeople! Bohlen
Senior/ SSt Engineer, Military HPT Analysis
...
  Topic: [Xansys] [APDL] R.I.P. DEBUG
danbohlen

Replies: 100
Views: 112459

PostForum: XANSYS   Posted: Tue Mar 24, 2015 11:57 am   Subject: [Xansys] [APDL] R.I.P. DEBUG
Rats. I figured the benign neglect of Ansys APDL cut both ways. Ignore it as for as new capabilities, but one would also hope they'd leave alone what is already there.


Dan ansysclassicforeverworks ...
  Topic: [Xansys] Macro for orthotropic materials
danbohlen

Replies: 1
Views: 2622

PostForum: XANSYS   Posted: Sun Mar 22, 2015 8:52 am   Subject: [Xansys] Macro for orthotropic materials
Replying to my own post.

Looks like there is a *VGET for esys and I have a set of macros for mapping pressures. Looks like I could do something for esys....



Dan Bohlen
Senior/ SSt Engineer, Mili ...
  Topic: [Xansys] Macro for orthotropic materials
danbohlen

Replies: 1
Views: 2622

PostForum: XANSYS   Posted: Sun Mar 22, 2015 6:47 am   Subject: [Xansys] Macro for orthotropic materials
Hi All,

We have an existing model with orthotropic material definitions. Part of the definition is the element coordinates systems for the elements. These element coordinates systems take a bit to ...
  Topic: Ascertaining if coordinate is located within area
danbohlen

Replies: 7
Views: 8224

PostForum: XANSYS   Posted: Fri Mar 20, 2015 11:54 am   Subject: [Xansys] Ascertaining if coordinate is located within area
What is the "point" a keypoint or node? That's all there is in Ansys.

Assuming your "area" (Ansys "area") is flat you could write macro to create a coordinate system ...
  Topic: nsym (for reflecting the nodes)
danbohlen

Replies: 6
Views: 6208

PostForum: XANSYS   Posted: Thu Mar 19, 2015 10:21 am   Subject: [Xansys] nsym (for reflecting the nodes)
You mean reflect boundary conditions? Nope doesn't do that automatically. But there are some old commands that might still work ,, TGEN SFGEN etc....



-----Original Message-----
From: Xansys [mai ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 10:54 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
Thanks to Ian who gave be a bulk of this.

This macro worked.....components read into NX....


!/sys,rm comps.cm ! for debugging
cmsel,,arg1
cmname=arg1

*get,nnode,node,,count
*dim,f,,nn ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 7:28 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
It is the executing that is vexing me.....

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Robert Dillworth
Sent: Wednesday, March 18, 2015 10:11 AM
To: ANSYS ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 7:27 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
Yep, NX didn't like unblocked at all.

NX is terribly weak in this function. The selecting is barbaric. I pined for the nsel, r,u,a in Ansys

NX uses little "symbols" and buttons for ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 6:26 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
OK, hand holding time. Installed PATRAN 2011 64-bit. Started a new session. I don't see Ansys as an import option. Use a .cdb and "neutral"?

-----Original Message-----
From: Xansys [mail ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 6:06 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
PATRAN 2011. I will try it. Haven't used in in over a decade - hope it is simple!



-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Metrisin, Joe
Sent: Wedn ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 6:00 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
That format worked thanks.

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Prentice, Ian (GE Aviation, US)
Sent: Wednesday, March 18, 2015 7:41 AM
To: 'ANSYS U ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 5:33 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
CMWRIT uses Ansys "shorthand" notation that UG NX doesn't seem to handle....

MX seems to choke on 180454 -190563 ..........

SO I need to write out 180454 180455 180456 .... ...
  Topic: [Xansys] OK this is a simple one - writing out in fixed form
danbohlen

Replies: 16
Views: 16742

PostForum: XANSYS   Posted: Wed Mar 18, 2015 4:16 am   Subject: [Xansys] OK this is a simple one - writing out in fixed form
Hi All,

I wish to write out a "component" file in the same format Ansys does.

CMBLOCK,SUCT_SIDE,NODE, 1519 ! users node component definition
(8i10)

With either *VWRIT or *MWRIT

I ha ...
  Topic: [Xansys] Reading components into UG NX9
danbohlen

Replies: 0
Views: 1620

PostForum: XANSYS   Posted: Tue Mar 17, 2015 12:16 pm   Subject: [Xansys] Reading components into UG NX9
Hi All,

I've been struggling with the POS software called UG NX V 9. I am trying to read in an Ansys V15 classic .cdb file. Most everything comes in OK except the node components.

I've narrowed i ...
  Topic: [Xansys] Modal analysis questions
danbohlen

Replies: 4
Views: 5859

PostForum: XANSYS   Posted: Tue Mar 10, 2015 7:33 am   Subject: [Xansys] Modal analysis questions
Hi All,

It has been quite a while since I've done some modal analysis. From the distance pass I recall two things:

1) If I had a static solution Ansys would use the contact status to glue com ...
  Topic: [Xansys] Using "Etable" in Workbench mechanical
danbohlen

Replies: 2
Views: 9891

PostForum: XANSYS   Posted: Tue Mar 03, 2015 7:00 am   Subject: [Xansys] Using "Etable" in Workbench mechanical
Wrong jobname? File.db - does it exist?

Time to reboot the PC?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Eve ...
  Topic: [Xansys] UG Import
danbohlen

Replies: 7
Views: 9756

PostForum: XANSYS   Posted: Mon Mar 02, 2015 5:18 am   Subject: [Xansys] UG Import
Looks like to import from NX version 9 I need Ansys 15 or 16.

Be nice if the Ansys error message mentioned that's an issue.

Thanks for the responses everyone.


Dan Bohlen
Senior/ SSt Engineer, Mil ...
  Topic: [Xansys] UG Import
danbohlen

Replies: 7
Views: 9756

PostForum: XANSYS   Posted: Thu Feb 26, 2015 1:07 pm   Subject: [Xansys] UG Import
Hi All,

Trying to import a UG (NX version 9.0.3.4) in to Ansys 14.5

Get an Ansys window "failed to open part" after it churned on it quite awhile.

Was importing solids only.

Any sugges ...
  Topic: quarter model vs full model
danbohlen

Replies: 7
Views: 7822

PostForum: XANSYS   Posted: Wed Feb 25, 2015 10:08 am   Subject: [Xansys] quarter model vs full model
The user???

(Well you did say "might".)


Dan $^^@r+@$$ Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evend ...
  Topic: [Xansys] (no subject)
danbohlen

Replies: 3
Views: 4024

PostForum: XANSYS   Posted: Thu Feb 19, 2015 6:04 am   Subject: [Xansys] (no subject)
Anyone else tried using lsclear on ANSYS15? The command appears to be broken on this version, and ANSYS simply freezes.



Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, ...
  Topic: [Xansys] [APDL]Continious run of 3 diifferent jobs in ANSYS
danbohlen

Replies: 0
Views: 2152

PostForum: XANSYS   Posted: Mon Feb 16, 2015 6:01 am   Subject: [Xansys] [APDL]Continious run of 3 diifferent jobs in ANSYS
Read up on "restarts"

-----Original Message-----
From: Xansys Could script it out inside of ansys

-----Original Message-----
From: Xansys +------------------------------------------------- ...
  Topic: [Xansys] [APDL]Continious run of 3 diifferent jobs in ANSYS
danbohlen

Replies: 0
Views: 1749

PostForum: XANSYS   Posted: Fri Feb 13, 2015 11:00 am   Subject: [Xansys] [APDL]Continious run of 3 diifferent jobs in ANSYS
Could script it out inside of ansys

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Saad Aziz
Sent: Friday, February 13, 2015 11:39 AM
To: ANSYS User Discussio ...
  Topic: [Xansys] Ansys Classic how to saev an animation as a .avi fi
danbohlen

Replies: 9
Views: 11289

PostForum: XANSYS   Posted: Thu Feb 12, 2015 12:37 pm   Subject: [Xansys] Ansys Classic how to saev an animation as a .avi fi
Dave gets the prize. When I use the launcher then I get the behavior Osman describes.

Thanks all.

P.S. Dave, it would be nice if Ansys could figure out it was on a Winders box, or Linux, etc.....
...
  Topic: [Xansys] Ansys Classic how to saev an animation as a .avi fi
danbohlen

Replies: 9
Views: 11289

PostForum: XANSYS   Posted: Thu Feb 12, 2015 12:27 pm   Subject: [Xansys] Ansys Classic how to saev an animation as a .avi fi
In the working directory? Nope, no *.avi file. And I did switch to a non-areo theme and re fired up Ansys15

-----Original Message-----
From: Xansys Nope, even in V15 Save animation Sa as Type onl ...
  Topic: [Xansys] Ansys Classic how to save an animation as a .avi fi
danbohlen

Replies: 12
Views: 13734

PostForum: XANSYS   Posted: Thu Feb 12, 2015 11:36 am   Subject: [Xansys] Ansys Classic how to save an animation as a .avi fi
Changed to aero theme and nothing has improved.

What about those later version of animate.exe? Why does ansys11 version work but not later ones????


Dan ansysclassicisanorphan Bohlen
Senior/ SSt ...
  Topic: [Xansys] Ansys Classic how to save an animation as a .avi fi
danbohlen

Replies: 12
Views: 13734

PostForum: XANSYS   Posted: Thu Feb 12, 2015 11:30 am   Subject: [Xansys] Ansys Classic how to save an animation as a .avi fi
I found 7 aero themes under control panel. Does it matter which one?

-----Original Message-----
From: Xansys Using Winders 7



-----Original Message-----
From: Xansys +---------------------------- ...
  Topic: [Xansys] Ansys Classic how to saev an animation as a .avi fi
danbohlen

Replies: 9
Views: 11289

PostForum: XANSYS   Posted: Thu Feb 12, 2015 11:27 am   Subject: [Xansys] Ansys Classic how to saev an animation as a .avi fi
Nope, even in V15 Save animation Sa as Type only has .anim and *.* as types.

Wish I could attach screen shots....

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Beh ...
  Topic: [Xansys] Ansys Classic how to save an animation as a .avi fi
danbohlen

Replies: 12
Views: 13734

PostForum: XANSYS   Posted: Thu Feb 12, 2015 11:24 am   Subject: [Xansys] Ansys Classic how to save an animation as a .avi fi
How do I do that?

-----Original Message-----
From: Xansys Using Winders 7



-----Original Message-----
From: Xansys +-------------------------------------------------------------+
| XANSY ...
  Topic: [Xansys] Ansys Classic how to save an animation as a .avi fi
danbohlen

Replies: 12
Views: 13734

PostForum: XANSYS   Posted: Thu Feb 12, 2015 11:00 am   Subject: [Xansys] Ansys Classic how to save an animation as a .avi fi
Using Winders 7



-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Metrisin, Joe
Sent: Thursday, February 12, 2015 12:58 PM
To: ANSYS User Discussion List
Subje ...
  Topic: [Xansys] Ansys Classic how to save an animation as a .avi fi
danbohlen

Replies: 12
Views: 13734

PostForum: XANSYS   Posted: Thu Feb 12, 2015 10:56 am   Subject: [Xansys] Ansys Classic how to save an animation as a .avi fi
Ansys crashed a bot during this process I get this error in the Cygwin window used to start the program

1 [main] bash 7876 dtable::stdio_init: couldn't make stderr distinct from stdout, Wi
n32 error ...
  Topic: [Xansys] Ansys Classic how to saev an animation as a .avi fi
danbohlen

Replies: 9
Views: 11289

PostForum: XANSYS   Posted: Thu Feb 12, 2015 10:53 am   Subject: [Xansys] Ansys Classic how to saev an animation as a .avi fi
Maybe you had the settting set to "avi" already - it is not the default.

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Mally, Carl
Sent: Thursday, ...
  Topic: [Xansys] Ansys Classic how to save an animation as a .avi fi
danbohlen

Replies: 12
Views: 13734

PostForum: XANSYS   Posted: Thu Feb 12, 2015 10:51 am   Subject: [Xansys] Ansys Classic how to save an animation as a .avi fi
Nope didn't work. Myself and another guy tried the same thing. It will only save a .anim file. That's the way I recalled being able to do it. Something wrong with our installation?

Using Ansys cl ...
  Topic: [Xansys] Ansys Classic how to saev an animation as a .avi fi
danbohlen

Replies: 9
Views: 11289

PostForum: XANSYS   Posted: Thu Feb 12, 2015 9:25 am   Subject: [Xansys] Ansys Classic how to saev an animation as a .avi fi
Hi All,

I thought there was a menu pick for this.

This is what I've tried so far.

I can dump out a .amin file (whoppee!). Tried to load it into DISPLAY and the Ansys Animate programs. Nothing sh ...
  Topic: [STRUCT] Zero result after EKILL
danbohlen

Replies: 11
Views: 11905

PostForum: XANSYS   Posted: Mon Feb 09, 2015 12:56 pm   Subject: [Xansys] [STRUCT] Zero result after EKILL
OK, silly question, but

Did you use elastic/plastic material properties?

If not, the part will just spring back to where it was before it went in the tool.

I would not expect much in the way on co ...
  Topic: EMAG; Transient Magentic Excitaion
danbohlen

Replies: 5
Views: 6990

PostForum: XANSYS   Posted: Fri Feb 06, 2015 11:54 am   Subject: [Xansys] EMAG; Transient Magentic Excitaion
Mark,

You doing emag stuff????



-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of mark.belloni3
Sent: Friday, February 06, 2015 12:03 PM
To: xansys@xansys.org ...
  Topic: [Xansys] WB-gui/toolbar question
danbohlen

Replies: 4
Views: 4403

PostForum: XANSYS   Posted: Thu Feb 05, 2015 11:58 am   Subject: [Xansys] WB-gui/toolbar question
oops

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Robert Dillworth
Sent: Thursday, February 05, 2015 1:40 PM
To: ANSYS User Discussion List
Subject: Re: [Xa ...
  Topic: [Xansys] WB-gui/toolbar question
danbohlen

Replies: 4
Views: 4403

PostForum: XANSYS   Posted: Thu Feb 05, 2015 11:37 am   Subject: [Xansys] WB-gui/toolbar question
Can't you save the menu layout? I don't have Ansys up right now but look in the utility menu....

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Robert Dillwo ...
  Topic: [Xansys] [APDL] - Line continuation
danbohlen

Replies: 22
Views: 28384

PostForum: XANSYS   Posted: Thu Jan 29, 2015 11:05 am   Subject: [Xansys] [APDL] - Line continuation
Ok nosy question. Why do you need a line so long?

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of mark.belloni3
Sent: Thursday, January 29, 2015 12:53 PM
To: ...
  Topic: [Xansys] Cryptic ansys error message Ansys13
danbohlen

Replies: 2
Views: 3122

PostForum: XANSYS   Posted: Thu Jan 22, 2015 4:05 pm   Subject: [Xansys] Cryptic ansys error message Ansys13
Actually, I had read a v14.5 model back into 13 and an option didn't exist back in 13.


Dan keepmovingforward Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booste ...
  Topic: [Xansys] Cryptic ansys error message Ansys13
danbohlen

Replies: 2
Views: 3122

PostForum: XANSYS   Posted: Wed Jan 21, 2015 1:30 pm   Subject: [Xansys] Cryptic ansys error message Ansys13
** FATAL ***
The location of contact integration point is out of contact segment.



Dan beatsthe$h|+outoeme Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
G ...
  Topic: [Xansys] [OT] Definition of Model Correlation...
danbohlen

Replies: 20
Views: 21173

PostForum: XANSYS   Posted: Mon Jan 12, 2015 12:39 pm   Subject: [Xansys] [OT] Definition of Model Correlation...
Consider, if comparing to a strain gage that you need to use the same approximate area on the model - that matches say your .06"x.06" gage versus some peak nodal stress.


Dan Bohlen
Seni ...
  Topic: [ UNITS/Geometry ] Workbench to ANSYS Classsic
danbohlen

Replies: 7
Views: 11344

PostForum: XANSYS   Posted: Fri Jan 09, 2015 6:24 am   Subject: [Xansys] [ UNITS/Geometry ] Workbench to ANSYS Classsic
HI Mark,

Any chance you could use a scale command in Ansys Classic to scale the geometry from meters to inches? I know there's a command to do it for nodes. For keypoints??

You could do a test cas ...
  Topic: HPC Settings for Optimum Performance
danbohlen

Replies: 25
Views: 34366

PostForum: XANSYS   Posted: Thu Jan 08, 2015 7:14 am   Subject: [Xansys] FW: HPC Settings for Optimum Performance
Shouldn't need those commands for Ansys 14.5 and up....

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Arlott, John P
Sent: Thursday, January 08, 2015 6:34 AM ...
  Topic: LINK 180 - solver pivot
danbohlen

Replies: 7
Views: 13360

PostForum: XANSYS   Posted: Tue Dec 16, 2014 8:15 am   Subject: [Xansys] LINK 180 - solver pivot
Use DOF command.

If you EVER had a 3D ELEMENT type defined in the database it might still be at 3 DOF


Dan extraDOFareaPITA Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, ...
  Topic: Non-linear Converngence issues
danbohlen

Replies: 3
Views: 5022

PostForum: XANSYS   Posted: Tue Dec 16, 2014 8:14 am   Subject: [Xansys] Non-linear Converngence issues
Try penalty versus Lagrange.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 ...
  Topic: [STRUCT] [WB] Contact / Plasticity Troubleshooting
danbohlen

Replies: 27
Views: 30677

PostForum: XANSYS   Posted: Thu Dec 11, 2014 5:52 am   Subject: [Xansys] [STRUCT] [WB] Contact / Plasticity Troubleshooting
Are you using the "full matrix" option since you have friction. Ansys gives you a warning (a BS warning in my estimation) if you have friction and using the symmetric matrix option.

I had ...
  Topic: [STRUCT] [WB] Adding Friction to Compression Only Support
danbohlen

Replies: 6
Views: 7495

PostForum: XANSYS   Posted: Wed Dec 03, 2014 11:01 am   Subject: [Xansys] [STRUCT] [WB] Adding Friction to Compression Only S
The material #.

He picked something BIG so it would not clobber another material you might be using - assuming one might just cut and paste it....


Dan dotheystillusepasteinkindergarden? Bohlen
Se ...
  Topic: [Xansys] [APDL] [STRUC] Restart .Rnnn file limitation
danbohlen

Replies: 0
Views: 1773

PostForum: XANSYS   Posted: Mon Nov 17, 2014 5:50 am   Subject: [Xansys] [APDL] [STRUC] Restart .Rnnn file limitation
After 999 it starts over again. So you'd have to do some batch renaming script.

Just ANOTHER PITA part of multiframe....


Dan PainInTheAnsys Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STA ...
  Topic: [Xansys] Mutlframe restarts (classic APDL)
danbohlen

Replies: 5
Views: 9115

PostForum: XANSYS   Posted: Tue Nov 04, 2014 11:18 am   Subject: [Xansys] Mutlframe restarts (classic APDL)
Btw not sure it answers the question about changing how often restart files are written. If MF can't to do that - well that stinks.

Somehow it did get changed. Is was working fine for 600 timepoint ...
  Topic: [Xansys] Mutlframe restarts (classic APDL)
danbohlen

Replies: 5
Views: 9115

PostForum: XANSYS   Posted: Tue Nov 04, 2014 11:16 am   Subject: [Xansys] Mutlframe restarts (classic APDL)
When you say "original" set do you mean from the beginning? If I used the same files for timepoint 1000 as I did for 2 is that following path dependency? Doesn't it matter what's in the ld ...
  Topic: [Xansys] Mutlframe restarts (classic APDL)
danbohlen

Replies: 5
Views: 9115

PostForum: XANSYS   Posted: Tue Nov 04, 2014 7:41 am   Subject: [Xansys] Mutlframe restarts (classic APDL)
Hmm checked the output file and saw this

*** WARNING *** CP = 2909.434 TIME= 15:27:42
The RESCONTROL command is is invalid with action = DEFINE when
restarting ...
  Topic: [Xansys] Mutlframe restarts (classic APDL)
danbohlen

Replies: 5
Views: 9115

PostForum: XANSYS   Posted: Tue Nov 04, 2014 7:30 am   Subject: [Xansys] Mutlframe restarts (classic APDL)
Hi All,

Being working on using multi - being a single frame guy since forever.

Had most of the bugs worked out and now the job is writing a jobname.r00x file for every substep versus every load step ...
  Topic: Blast Explosions on Steel Plates
danbohlen

Replies: 5
Views: 5858

PostForum: XANSYS   Posted: Mon Nov 03, 2014 12:58 pm   Subject: [Xansys] Blast Explosions on Steel Plates
Neither do it


Dan KABOOM Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 cube 1 ...
  Topic: Using result of analysis in the next load step
danbohlen

Replies: 14
Views: 18885

PostForum: XANSYS   Posted: Mon Nov 03, 2014 6:23 am   Subject: [Xansys] Using result of analysis in the next load step
Glad to hear we are not the only luddites still using single frame.

I've been working with multiframe some the year and it is a royal pain as far as file handling and being intuitive. I think our pl ...
  Topic: Blast Explosions on Steel Plates
danbohlen

Replies: 5
Views: 5858

PostForum: XANSYS   Posted: Mon Nov 03, 2014 6:20 am   Subject: [Xansys] Blast Explosions on Steel Plates
Explosive forming for manufacturing??


Dan notnewpanzerdesign? Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, ...
  Topic: Edge to Edge Contact Separation
danbohlen

Replies: 4
Views: 7235

PostForum: XANSYS   Posted: Thu Oct 30, 2014 6:11 am   Subject: [Xansys] Edge to Edge Contact Separation
I think we have a long way to go on this case......

What is it you are trying to analyze? What is the engineering/homework problem you are trying to solve? What do you expect to happen? What did A ...
  Topic: Edge to Edge Contact Separation
danbohlen

Replies: 4
Views: 7235

PostForum: XANSYS   Posted: Wed Oct 29, 2014 12:48 pm   Subject: [Xansys] Edge to Edge Contact Separation
I assume you expected them to be in contact. Are both parts restrained I assume? What forces the two together?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and ...
  Topic: [Xansys] ESTIMATED TIME FOR ELEMENT 146786 TO CHANGE STATUS
danbohlen

Replies: 0
Views: 1918

PostForum: XANSYS   Posted: Wed Oct 29, 2014 12:26 pm   Subject: [Xansys] ESTIMATED TIME FOR ELEMENT 146786 TO CHANGE STATUS
My element KEYOPT(7) is set to "no control"

Frankly, not sure what solcon is set to in my .db. I'll have to remedy that......


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR ...
  Topic: [Xansys] ESTIMATED TIME FOR ELEMENT 146786 TO CHANGE STATUS
danbohlen

Replies: 0
Views: 1548

PostForum: XANSYS   Posted: Wed Oct 29, 2014 9:57 am   Subject: [Xansys] ESTIMATED TIME FOR ELEMENT 146786 TO CHANGE STATUS
Hi All,

When I get the message below

" *** ESTIMATED TIME FOR ELEMENT 146786 TO CHANGE STATUS IS 43.98 "

Does that imply any special nonlinear option is turned on?

Output below




E ...
  Topic: Desigm_Modeler Issue
danbohlen

Replies: 30
Views: 28719

PostForum: XANSYS   Posted: Tue Oct 21, 2014 10:33 am   Subject: [Xansys] Desigm_Modeler Issue
TLDR? Too long didn't read?

-----Original Message-----
From: Xansys PLANE25 with non-axisymmetric loads is quickly becoming a lost art -
along with superelements.


Dan justuseabigf'ingcomputer Bo ...
  Topic: Desigm_Modeler Issue
danbohlen

Replies: 30
Views: 28719

PostForum: XANSYS   Posted: Tue Oct 21, 2014 7:30 am   Subject: [Xansys] Desigm_Modeler Issue
PLANE25 with non-axisymmetric loads is quickly becoming a lost art - along with superelements.


Dan justuseabigf'ingcomputer Bohlen
Senior Staff Engineer,
Military HPT Analysis STAR review chairman ...
  Topic: [Xansys] Workbench caution
danbohlen

Replies: 30
Views: 32093

PostForum: XANSYS   Posted: Wed Oct 15, 2014 9:16 am   Subject: [Xansys] Workbench caution
Another XANSYS success story.

The guy that came up with this idea should get a Noble prize....


Dan whenyouareasgreatasIamitisdifficulttobemodest Bohlen
Senior/ SSt Engineer, Military HPT Analysi ...
  Topic: [Xansys] Warning?
danbohlen

Replies: 5
Views: 7020

PostForum: XANSYS   Posted: Tue Oct 14, 2014 10:37 am   Subject: [Xansys] Warning?
Note the "WARNING" just looks to see I have friction turned on. It should be a "note" and maybe include the slippage details you have below.

I've found that there are so many bog ...
  Topic: Coupling Shell-solid bodies (Face-edge contact)
danbohlen

Replies: 1
Views: 2523

PostForum: XANSYS   Posted: Tue Oct 14, 2014 10:33 am   Subject: [Xansys] Coupling Shell-solid bodies (Face-edge contact)
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] Warning?
danbohlen

Replies: 5
Views: 7020

PostForum: XANSYS   Posted: Tue Oct 14, 2014 7:47 am   Subject: [Xansys] Warning?
Just a rant.

Current model I'm running in classic comes back with this

"*** WARNING *** CP = 1355.134 TIME= 10:42:31

Maximum friction coefficient 0.45 is defined i ...
  Topic: Model getting into Bisection at sub step
danbohlen

Replies: 1
Views: 2540

PostForum: XANSYS   Posted: Tue Oct 14, 2014 4:43 am   Subject: [Xansys] Model getting into Bisection at sub step
There's a setting that controls this (I forget the command right now). Nothing wrong with bisecting - it just means Ansys wants to "creep up" on the solution more slowly than your loading r ...
  Topic: [APDL] 2D cracking
danbohlen

Replies: 7
Views: 10366

PostForum: XANSYS   Posted: Tue Oct 14, 2014 4:40 am   Subject: [Xansys] [APDL] 2D cracking
Well, there are some textbook solutions for fracture mechanics.

In Ansys there is a crack front element. The crack itself could be rather challenging to mesh and postprocess. So much so, there ar ...
  Topic: [Xansys] Workbench caution
danbohlen

Replies: 30
Views: 32093

PostForum: XANSYS   Posted: Mon Oct 13, 2014 10:46 am   Subject: [Xansys] Workbench caution
Dan classicuserfeelinggood Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 cube 1 ...
  Topic: [APDL] 2D cracking
danbohlen

Replies: 7
Views: 10366

PostForum: XANSYS   Posted: Mon Oct 13, 2014 10:18 am   Subject: [Xansys] [APDL] 2D cracking
Where the cracks would appear?

Well are they there when the thing is made? Are they created from loading? In the jet engine world of metals, the location of the greatest stress range is generall ...
  Topic: [APDL] 2D cracking
danbohlen

Replies: 7
Views: 10366

PostForum: XANSYS   Posted: Mon Oct 13, 2014 5:00 am   Subject: [Xansys] [APDL] 2D cracking
I may be able to help you ask your question.

Are you trying to simulate some loss of stiffness in the concrete due to the cracks - or trying to do some sort of fracture mechanics analysis of the actu ...
  Topic: [Xansys] *GETting mode participation factors
danbohlen

Replies: 7
Views: 9854

PostForum: XANSYS   Posted: Fri Oct 10, 2014 4:17 am   Subject: [Xansys] *GETting mode participation factors
Right, They might be stored for one set of results. But not all, apparently.

-----Original Message-----
From: Xansys That little detail wasn't noted in the online help!

Is this new? I'm absolutely ...
  Topic: [Xansys] *GETting mode participation factors
danbohlen

Replies: 7
Views: 9854

PostForum: XANSYS   Posted: Thu Oct 09, 2014 12:19 pm   Subject: [Xansys] *GETting mode participation factors
It turns out the Part factors are not stored on the .rst file. They are only available during the run, so you have to pull them out as you go along. My buddy was doing the *GET after resuming result ...
  Topic: [Xansys][STRUCT][USERMAT] Single crystal material model
danbohlen

Replies: 2
Views: 2561

PostForum: XANSYS   Posted: Thu Oct 09, 2014 10:40 am   Subject: [Xansys] [STRUCT][USERMAT] Single crystal material model
I think you'll need to express the material as Ex, Ey, NUXY, NU?? as an orthotropic material property.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Boo ...
  Topic: [Xansys] *GETting mode participation factors
danbohlen

Replies: 7
Views: 9854

PostForum: XANSYS   Posted: Wed Oct 08, 2014 4:44 am   Subject: [Xansys] *GETting mode participation factors
Hi All,

A buddy is using *GET to get participation factors for a prestressed modal (Ansys Classic)

*GET,pf,mode,cum,pfact,,direc,y

Where cum is the mode #

I t returns a number, but it does not ma ...
  Topic: [Xansys] [STRUC] Modelling preloaded wire
danbohlen

Replies: 12
Views: 13556

PostForum: XANSYS   Posted: Tue Sep 30, 2014 4:08 am   Subject: [Xansys] [STRUC] Modelling preloaded wire
Well not 100% sure of what you are doing or what you are seeing, but another way to pretension the wires would be to assign an alpha to them (coefficient of thermal expansion) and assign a temperature ...
  Topic: how to simulate contact using shell and contact elements
danbohlen

Replies: 1
Views: 3856

PostForum: XANSYS   Posted: Fri Sep 26, 2014 9:56 am   Subject: [Xansys] how to simulate contact using shell and contact ele
Read the error carefully. Ansys gets its nose out of joint if you use the same real constant for 2 different elements types.

While the same values for the constants MIGHT work - Ansys is going to a ...
  Topic: [APDL] How does ANSYS converts pressures from el. to nodes?
danbohlen

Replies: 4
Views: 5193

PostForum: XANSYS   Posted: Mon Sep 22, 2014 12:28 pm   Subject: [Xansys] [APDL] How does ANSYS converts pressures from el. t
I believe I recall seeing how that is done in a college textbook. You could check there.

Why interested?


Dan icantakethepressure Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review ch ...
  Topic: [Xansys] Non-converged solution in contact analysis
danbohlen

Replies: 20
Views: 22348

PostForum: XANSYS   Posted: Fri Sep 19, 2014 4:54 am   Subject: [Xansys] Non-converged solution in contact analysis
Springs - maybe LINK14 elements for point to point. Some non-contact element to connect the loose pieces of the model in all 6 DOF


Dan aspringisawonderfulthing Bohlen
Senior/ SSt Engineer, Milit ...
  Topic: [Xansys] Non-converged solution in contact analysis
danbohlen

Replies: 20
Views: 22348

PostForum: XANSYS   Posted: Wed Sep 17, 2014 12:13 pm   Subject: [Xansys] Non-converged solution in contact analysis
That output usually indicates an unconstrained - or nearly unconstrained model. I'd put a few weak (3-4 orders magnitude softer than the contacts) between the blocks in all DOF and see if you can get ...
  Topic: [Xansys] FW: regarding error in plnsol command
danbohlen

Replies: 2
Views: 6084

PostForum: XANSYS   Posted: Wed Sep 17, 2014 9:31 am   Subject: [Xansys] FW: regarding error in plnsol command
Not sure why this was sent directly to me, but what the hey - they signed it at least.

I haven't run this input string through Ansys, but I'd say from the looks of it - the job didn't solve or you to ...
  Topic: meshing curved volumes
danbohlen

Replies: 1
Views: 1623

PostForum: XANSYS   Posted: Mon Sep 15, 2014 12:18 pm   Subject: [Xansys] meshing curved volumes
I cut and pasted the stream below - there's no element type 1 defined....

So I added a et,1,45

Seemed to mesh OK. What can't you do with it? There's no BC commands in the stream and not sure what ...
  Topic: [Xansys] Fatal error - a node number greater than one billio
danbohlen

Replies: 12
Views: 12685

PostForum: XANSYS   Posted: Mon Sep 15, 2014 9:23 am   Subject: [Xansys] Fatal error - a node number greater than one billio
Do you have an ASD? Might be time to get them involved.



-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Juan Carlos Peteiro
Sent: Monday, September 15 ...
  Topic: [Xansys] Fatal error - a node number greater than one billio
danbohlen

Replies: 12
Views: 12685

PostForum: XANSYS   Posted: Mon Sep 15, 2014 9:18 am   Subject: [Xansys] Fatal error - a node number greater than one billio
CDWRIT, CDREAD


Dan begoneevilspirits Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH  45215
Bui ...
  Topic: [Xansys] Thank you
danbohlen

Replies: 3
Views: 3523

PostForum: XANSYS   Posted: Mon Sep 15, 2014 5:43 am   Subject: [Xansys] Thank you
You are welcome! Let's hope it is a broad coalition including our friends in Europe and around the world. Unfortunately, radicals do have their supporters. I'm afraid it'll be like crime - it'll alw ...
  Topic: [Xansys] Influence of hardware architecture in convergence
danbohlen

Replies: 8
Views: 7165

PostForum: XANSYS   Posted: Mon Sep 08, 2014 12:34 pm   Subject: [Xansys] Chaos theory [was: Influence of hardware architectu
"First thing to try would be to try to reproduce the restart behavior of Lorentz's original problem: comparing the results of a continuous run with a couple of thousand load steps, with results f ...
  Topic: [Xansys] Wrong mass calculated when using temperature depend
danbohlen

Replies: 11
Views: 11789

PostForum: XANSYS   Posted: Wed Sep 03, 2014 11:24 am   Subject: [Xansys] Wrong mass calculated when using temperature depend
Maybe you have ramped boundary conditions on - so at the first substep

temp = temp start + 1/250(temp finish - temp start)

I deal with metals - so I have never have a density matl property vary wi ...
  Topic: /eshap view small problem
danbohlen

Replies: 6
Views: 6214

PostForum: XANSYS   Posted: Wed Sep 03, 2014 6:47 am   Subject: [Xansys] /eshap view small problem
I've always considered the ESHAP as a sanity check. If sometime was subtly off you'd probably miss it. Any time your inputs are real constants one has to be quite careful about typos etc.


Dan Bohl ...
  Topic: /eshap view small problem
danbohlen

Replies: 6
Views: 6214

PostForum: XANSYS   Posted: Wed Sep 03, 2014 6:28 am   Subject: [Xansys] /eshap view small problem
Might be as good as it gets. It is Ansys graphics after all - not NX or a CAD product....

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of alexandre.meli
Sent: ...
  Topic: /eshap view small problem
danbohlen

Replies: 6
Views: 6214

PostForum: XANSYS   Posted: Wed Sep 03, 2014 4:46 am   Subject: [Xansys] /eshap view small problem
HI,

Try changing hidden line options?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 ...
  Topic: [Xansys] How to model metal flow in ANSYS APDL?
danbohlen

Replies: 2
Views: 4064

PostForum: XANSYS   Posted: Fri Aug 29, 2014 4:28 am   Subject: [Xansys] How to model metal flow in ANSYS APDL?
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] [STRUC] Axisymmetric analysis. Contact Elements and
danbohlen

Replies: 21
Views: 24144

PostForum: XANSYS   Posted: Wed Aug 27, 2014 7:47 am   Subject: [Xansys] [STRUC] Axisymmetric analysis. Contact Elements and
When all else fails a CDWRIT/CDREAD exorcism can't hurt. Does WB have a moral equivalent?


Dan evilspiritsbegone! Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and ...
  Topic: [STRUC] Modal Analysis of a DrillString
danbohlen

Replies: 22
Views: 22771

PostForum: XANSYS   Posted: Tue Aug 26, 2014 5:26 am   Subject: [Xansys] [STRUC] Modal Analysis of a DrillString
Interesting.

Rick where is "Eng-Tips"?

Yeah, that concept has come up before. We don't mind helping here, but where is you professor at?



"You got bounced from Eng-Tips because ...
  Topic: [Xansys] [STRUC] Axisymmetric analysis. Contact Elements and
danbohlen

Replies: 21
Views: 24144

PostForum: XANSYS   Posted: Tue Aug 26, 2014 3:58 am   Subject: [Xansys] [STRUC] Axisymmetric analysis. Contact Elements and
Springs.

The founder of our ASD once taught a class here and suggested that in any model you should able to delete all the contact and have the model run. Connect all your loose pieces with weak spr ...
  Topic: [Xansys] [STRUC] Axisymmetric analysis. Contact Elements and
danbohlen

Replies: 21
Views: 24144

PostForum: XANSYS   Posted: Mon Aug 25, 2014 10:23 am   Subject: [Xansys] [STRUC] Axisymmetric analysis. Contact Elements and
One suggestion. I looks like you are putting a downward load on at the same time as the pressure. Do them sequentially. Consider step 1 the insertion of the slug into the dye (making 2 liter bottle ...
  Topic: [Xansys] [XANSYS][STRUC] Meshing a line in unequal division
danbohlen

Replies: 10
Views: 10459

PostForum: XANSYS   Posted: Tue Aug 19, 2014 10:59 am   Subject: [Xansys] [XANSYS][STRUC] Meshing a line in unequal division
You could create some geometry to divide it by - some intersecting lines. You could create a working plane where you want and divide by that.

Before I spoon feed much more, maybe you can explain w ...
  Topic: [Xansys] [XANSYS][STRUC] Meshing a line in unequal division
danbohlen

Replies: 10
Views: 10459

PostForum: XANSYS   Posted: Tue Aug 19, 2014 10:35 am   Subject: [Xansys] [XANSYS][STRUC] Meshing a line in unequal division
IN the classic menu there's divide line in to N lines.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, O ...
  Topic: [Xansys] [XANSYS][STRUC] Meshing a line in unequal division
danbohlen

Replies: 10
Views: 10459

PostForum: XANSYS   Posted: Tue Aug 19, 2014 10:07 am   Subject: [Xansys] [XANSYS][STRUC] Meshing a line in unequal division
Probably the easiest way it to just divide the line into segments. Between that and setting an element # (or size) for each segment ought to get you there. Classic or WB?


Dan Bohlen
Senior/ SSt E ...
  Topic: [Xansys] [Struct][APDL] How to get stress and strain data fr
danbohlen

Replies: 3
Views: 3717

PostForum: XANSYS   Posted: Thu Aug 07, 2014 4:39 am   Subject: [Xansys] [Struct][APDL] How to get stress and strain data fr
I agree with Chris.

It has been years - so I don't recall the exact %, but we got really close doing a free-free modal on an airfoil once. But once you install it in the shrouds, and then in an engi ...
  Topic: [Xansys] MAPDL: Classic freezes when HELP is typed at the co
danbohlen

Replies: 1
Views: 1870

PostForum: XANSYS   Posted: Tue Jul 22, 2014 1:21 pm   Subject: [Xansys] MAPDL: Classic freezes when HELP is typed at the co
Yep just today. Can't recall it often before though.

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Fischer, Richard
Sent: Tuesday, July 22, 2014 11:05 AM
T ...
  Topic: [PHYS] ERROR: Geometry failed to support boolean operations
danbohlen

Replies: 4
Views: 5788

PostForum: XANSYS   Posted: Thu Jul 17, 2014 6:48 am   Subject: [Xansys] [PHYS] ERROR: Geometry failed to support boolean op
The coons patch warning is a start. Why are those surfaces not in a plane? Maybe you should activiate a cylindrical coordinates system is they are circular and not planar.

Again, why add them? ...
  Topic: [PHYS] ERROR: Geometry failed to support boolean operations
danbohlen

Replies: 4
Views: 5788

PostForum: XANSYS   Posted: Thu Jul 17, 2014 5:20 am   Subject: [Xansys] [PHYS] ERROR: Geometry failed to support boolean op
Hi,

First off I have to wonder why you want to merge the volumes. Assuming geometry to there to be meshed, having separate "chunked" volumes like you create below would generally where you ...
  Topic: [Xansys] MISC: CAESAR II
danbohlen

Replies: 13
Views: 13658

PostForum: XANSYS   Posted: Thu Jul 10, 2014 6:48 am   Subject: [Xansys] MISC: CAESAR II
"I have not come here to praise Caesar, but to ...."

Years ago I worked in the "configurations" group here (the external piping on the engine) and they toyed with a similar produc ...
  Topic: APDL: Change between /SOLU and /POST
danbohlen

Replies: 8
Views: 8448

PostForum: XANSYS   Posted: Thu Jul 10, 2014 5:58 am   Subject: [Xansys] APDL: Change between /SOLU and /POST
Handle what?

You might want to include the whole thread here.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evend ...
  Topic: [other] Where from the extreme values of countours come from
danbohlen

Replies: 4
Views: 4064

PostForum: XANSYS   Posted: Thu Jul 10, 2014 4:36 am   Subject: [Xansys] [other] Where from the extreme values of countours
All values of whatever is selected.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Co ...
  Topic: [Xansys] Fleming's rule for OMEGA command
danbohlen

Replies: 7
Views: 7816

PostForum: XANSYS   Posted: Wed Jul 09, 2014 4:02 am   Subject: [Xansys] Fleming's rule for OMEGA command
Hmm, for spinning part does it matter if it rotates clockwise (if kids in the digital age even know what that means) or counter clockwise? (It DOES matter what axis the model is spinning about.)

Th ...
  Topic: [Xansys] Dummy model
danbohlen

Replies: 2
Views: 2926

PostForum: XANSYS   Posted: Wed Jun 25, 2014 9:58 am   Subject: [Xansys] Dummy model
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] Dummy model
danbohlen

Replies: 2
Views: 2926

PostForum: XANSYS   Posted: Wed Jun 25, 2014 9:57 am   Subject: [Xansys] Dummy model
I don't think 10-year-old ought to be doing FEA work.

I would question the child labor laws of your location, but you failed to mention it....


Dan smart@$$ Bohlen
Senior/ SSt Engineer, Military H ...
  Topic: [Xansys] strain distribution along circumference.
danbohlen

Replies: 5
Views: 4854

PostForum: XANSYS   Posted: Sat Jun 21, 2014 5:44 am   Subject: [Xansys] strain distribution along circumference.
Positive reinforcement for bad behavior. He got his answer. Why post a signature next time?


Dan Billydon'thityoursister,here'sacookie Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR revie ...
  Topic: [apdl] how to reassign uniform temp to all nodes
danbohlen

Replies: 7
Views: 9933

PostForum: XANSYS   Posted: Sat Jun 21, 2014 5:42 am   Subject: [Xansys] [apdl] how to reassign uniform temp to all nodes
I would avoid the whole TUNIF command. Try only applying BF commands.

Think of it this way TUNIF only acts if there are no BF commands applied. You start with TUNIF=300, apply some BF's. If you w ...
  Topic: [Xansys] [ADMIN] Why do new user not understand and comply w
danbohlen

Replies: 4
Views: 5926

PostForum: XANSYS   Posted: Tue Jun 17, 2014 10:12 am   Subject: [Xansys] [ADMIN] Why do new user not understand and comply w
Hi Martin,

Any way the forums can FORCE the user to put in a signature? Always seemed like they were the worst offenders.

Sorry I've been offline a bit or I'd issue more of my anonymous post nasty- ...
  Topic: [Xansys] [APDL]Calculation of weld run
danbohlen

Replies: 15
Views: 17320

PostForum: XANSYS   Posted: Mon Jun 16, 2014 11:47 am   Subject: [Xansys] [APDL]Calculation of weld run
Compass? Isn't that how find north?

Protractor? Isn't that something a gynecologist uses? :-)

I wonder if they used that stuff even in high school anymore. Prolly all CAD by now.


Dan POF=pitif ...
  Topic: Load cases for fatigue analysis
danbohlen

Replies: 8
Views: 7877

PostForum: XANSYS   Posted: Mon Jun 16, 2014 11:44 am   Subject: [Xansys] Load cases for fatigue analysis
The results should show up as separate set of results for each.

The only way to save the .dbs (no reason why you should need to) would be new names.

And unless there is some big nonlinearity in you ...
  Topic: NEED A ADVICE FOR NONLINEAR SOLUTIONS PROBLEMS
danbohlen

Replies: 14
Views: 16600

PostForum: XANSYS   Posted: Thu Jun 05, 2014 5:36 am   Subject: [Xansys] NEED A ADVICE FOR NONLINEAR SOLUTIONS PROBLEMS
My bad....

-----Original Message-----
From: Xansys STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Dan

If you scroll down the signature is ...
  Topic: NEED A ADVICE FOR NONLINEAR SOLUTIONS PROBLEMS
danbohlen

Replies: 14
Views: 16600

PostForum: XANSYS   Posted: Thu Jun 05, 2014 5:00 am   Subject: [Xansys] NEED A ADVICE FOR NONLINEAR SOLUTIONS PROBLEMS
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:


On ...
  Topic: unable to generate cyclic symmetry constraint equations
danbohlen

Replies: 2
Views: 3538

PostForum: XANSYS   Posted: Tue May 27, 2014 3:41 am   Subject: [Xansys] unable to generate cyclic symmetry constraint equat
Hi,

Might be a language barrier here. You applied cyclic symmetry to what before meshing - geometry? Did you "expand" the model beyond the 60 degrees? Workbench or classic? In classic w ...
  Topic: [Xansys] Experience with SOLSH190...
danbohlen

Replies: 10
Views: 12553

PostForum: XANSYS   Posted: Fri May 16, 2014 12:12 pm   Subject: [Xansys] Experience with SOLSH190...
Well we never actually did it. But the idea was 1 SOLSH in the "shell regions" then transition to several thru the thickness when we got to a region we wanted in bricks.

Otherwise you hav ...
  Topic: [Xansys] Experience with SOLSH190...
danbohlen

Replies: 10
Views: 12553

PostForum: XANSYS   Posted: Fri May 16, 2014 12:03 pm   Subject: [Xansys] Experience with SOLSH190...
The few times we've considered using the SOLSH190 is when integrating shell regions and brick regions in the same model.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairma ...
  Topic: [Xansys] Stop a *Do loop
danbohlen

Replies: 12
Views: 13563

PostForum: XANSYS   Posted: Tue Apr 29, 2014 5:19 am   Subject: [Xansys] Stop a *Do loop
OK, sounds like you want an *IF check.

*IF the # of "group element" is odd (meaning 3,5,7 etc?) stop the *DO loop?

Not sure the best way to check for an odd number but maybe something l ...
  Topic: [Xansys] Stop a *Do loop
danbohlen

Replies: 12
Views: 13563

PostForum: XANSYS   Posted: Tue Apr 29, 2014 4:32 am   Subject: [Xansys] Stop a *Do loop
OK, Do you want an *IF command in the *DO loop?

Or do you want to be able to stop it from outside of Ansys?

Again, please describe in detail the exact circumstances you are dealing with.

With kno ...
  Topic: Exporting Result Animation from ANSYS Workbench to PDF
danbohlen

Replies: 2
Views: 4089

PostForum: XANSYS   Posted: Wed Apr 23, 2014 7:50 am   Subject: [Xansys] Exporting Result Animation from ANSYS Workbench to
Never heard of PDF animations. Ansys can make .avi and I recall in the past vrml - which may have the pan and zoom capability you want.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR ...
  Topic: Exporting the ANSYS Workbench result animation into a PDF
danbohlen

Replies: 2
Views: 5154

PostForum: XANSYS   Posted: Wed Apr 23, 2014 4:43 am   Subject: [Xansys] Exporting the ANSYS Workbench result animation into
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: WB, Static Structural, kinematic coupling
danbohlen

Replies: 1
Views: 2064

PostForum: XANSYS   Posted: Mon Apr 21, 2014 6:50 am   Subject: [Xansys] WB, Static Structural, kinematic coupling
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] How do I suppress prompts?
danbohlen

Replies: 6
Views: 7728

PostForum: XANSYS   Posted: Thu Apr 17, 2014 12:22 pm   Subject: [Xansys] How do I suppress prompts?
If you ran it in "batch" mode it would suppress some of the prompts.

ansys154 -b

Depends what the prompts are. Clobbering variable would be one. Editing the script is another option.


...
  Topic: [Xansys] How do I suppress prompts?
danbohlen

Replies: 6
Views: 7728

PostForum: XANSYS   Posted: Thu Apr 17, 2014 11:25 am   Subject: [Xansys] How do I suppress prompts?
I you ran it in "batch" mode it would suppress some of the prompts.

ansys154 -b

Depends what the prompts are. Clobbering variable would be one. Editing the script is another option.


D ...
  Topic: [Xansys] Flapping of 3D wing in Ansys Transient Structural A
danbohlen

Replies: 13
Views: 13451

PostForum: XANSYS   Posted: Tue Apr 08, 2014 12:01 pm   Subject: [Xansys] Flapping of 3D wing in Ansys Transient Structural A
Precisely. I assumed he was researching this to get the definitive answer. Can a swallow carry a coconut to Medieval Britain?

(I'm still waiting for the XANSYS post on the thesis about the buoyancy ...
  Topic: [Xansys] Flapping of 3D wing in Ansys Transient Structural A
danbohlen

Replies: 13
Views: 13451

PostForum: XANSYS   Posted: Tue Apr 08, 2014 10:32 am   Subject: [Xansys] Flapping of 3D wing in Ansys Transient Structural A
African or European swallow?


Dan hastheholygrailmadeitoIndia? Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, ...
  Topic: Applying loads on exterior nodes
danbohlen

Replies: 1
Views: 2150

PostForum: XANSYS   Posted: Tue Apr 08, 2014 8:57 am   Subject: [Xansys] Applying loads on exterior nodes
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ...
  Topic: [Xansys] [OT] Update on List Rebuild
danbohlen

Replies: 1
Views: 3821

PostForum: XANSYS   Posted: Tue Apr 08, 2014 8:49 am   Subject: [Xansys] [OT] Update on List Rebuild
No, the thanks go to you and PADT for having us on your servers in the first place.


Dan xansysthethanklessjob Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booste ...
  Topic: Selecting Pyramid Elements
danbohlen

Replies: 5
Views: 6262

PostForum: XANSYS   Posted: Tue Apr 08, 2014 8:48 am   Subject: [Xansys] Selecting Pyramid Elements
Hi Ian,

I wouldn't be so sure about the "big Happy GE family".

I know for a fact we can't freely send our brethren (and sisteren) our structures or rotating parts analysis best practices ( ...
  Topic: Selecting Pyramid Elements
danbohlen

Replies: 5
Views: 6262

PostForum: XANSYS   Posted: Tue Apr 08, 2014 8:44 am   Subject: [Xansys] Selecting Pyramid Elements
Yes, you can (and probably should) convert the tets into a purely tet element.

With old school elements that means you build a hybrid mesh with SOLID95's and when you are done convert the tet shap ...
  Topic: [Xansys] Nodal Rotations
danbohlen

Replies: 0
Views: 1406

PostForum: XANSYS   Posted: Tue Apr 08, 2014 8:39 am   Subject: [Xansys] Nodal Rotations
I think there USED to be a small penalty. Haven't look at it in years.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Ne ...
  Topic: [Xansys] Strain energy from a modal model
danbohlen

Replies: 5
Views: 6745

PostForum: XANSYS   Posted: Thu Apr 03, 2014 10:59 am   Subject: [Xansys] Strain energy from a modal model
Looks like PLANE182 stores SEND. Looks like a short putt to go from 25's to 182's.


Dan ansysdinosaur Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE A ...
  Topic: [Xansys] Strain energy from a modal model
danbohlen

Replies: 5
Views: 6745

PostForum: XANSYS   Posted: Thu Apr 03, 2014 10:47 am   Subject: [Xansys] Strain energy from a modal model
Found SENE for some elements. My model is a PLANE25 - where it is not stored. Haven't used SOLID272 yet.

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Bohl ...
  Topic: [Xansys] Strain energy from a modal model
danbohlen

Replies: 5
Views: 6745

PostForum: XANSYS   Posted: Thu Apr 03, 2014 10:19 am   Subject: [Xansys] Strain energy from a modal model
Hi,

This might be a simple one.

I've been asked to plot "strain energy" for some modal results. Anyone have an idea of what Ansys quantity this would be.

Dan Bohlen
Senior/ SSt Engineer, ...
  Topic: [Xansys] ASME codes
danbohlen

Replies: 20
Views: 15524

PostForum: XANSYS   Posted: Fri Jan 31, 2014 8:43 am   Subject: [Xansys] ASME codes
IGT=? Just curious.

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of David S Stapp
Sent: Friday, January 31, 2014 10:38 AM
To: 'ANSYS User ...
  Topic: [Xansys] [APDL] Older .RST file format.
danbohlen

Replies: 1
Views: 2645

PostForum: XANSYS   Posted: Fri Jan 31, 2014 8:05 am   Subject: [Xansys] [APDL] Older .RST file format.
Another painful way. Use a macro to *GET and write out the result data, and then read it in to the earlier version and then store it in the .rst with DESOL, DNSOL etc.



Dan justanideamaybenotagood ...
  Topic: [Xansys] [APDL] Older .RST file format.
danbohlen

Replies: 1
Views: 2645

PostForum: XANSYS   Posted: Fri Jan 31, 2014 7:58 am   Subject: [Xansys] [APDL] Older .RST file format.
HI Joe,

This goes WAY bad, but wasn't there a way to write out or convert an .rst into ascii (like a cdb file)? Before the whole IEEE compatible .rst (or was it file12's?) you used to have to do t ...
  Topic: [Xansys] R: [General] First mail in some time
danbohlen

Replies: 1
Views: 2062

PostForum: XANSYS   Posted: Thu Jan 30, 2014 5:41 am   Subject: [Xansys] R: [General] First mail in some time
Should I name drop? Until he retired (and then maybe a little while after that) John Swanson, founder of Ansys Inc., was a subscriber and poster.

Thanks to starting this list I got to go to dinner ...
  Topic: [Xansys] [JOB] Openings for structural analyst engineer
danbohlen

Replies: 8
Views: 6773

PostForum: XANSYS   Posted: Wed Jan 29, 2014 10:33 am   Subject: [Xansys] [JOB] Openings for structural analyst engineer
Best part about Florida (versus the "south") is they don't talk "funny" there....

Not much drawl in Texas either.



Dan ohi'mgoingtogetitforthatcomment Bohlen
Senior/ SSt Engin ...
  Topic: [Xansys] [JOB] Openings for structural analyst engineer
danbohlen

Replies: 8
Views: 6773

PostForum: XANSYS   Posted: Wed Jan 29, 2014 10:31 am   Subject: [Xansys] [JOB] Openings for structural analyst engineer
agreed

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of Metrisin, Joe
Sent: Wednesday, January 29, 2014 10:29 AM
To: ANSYS User Discussion Li ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Wed Jan 29, 2014 5:40 am   Subject: [Xansys] [General] First mail in some time
". I do think XANSYS is a poorer place without Sheldon."

Amen

-----Original Message-----
From: xansys-bounces@xansys.org
If possible, and not too much trouble, it would be fascinating if ...
  Topic: [JOB] Openings for structural analyst engineer
danbohlen

Replies: 5
Views: 6741

PostForum: XANSYS   Posted: Tue Jan 28, 2014 2:20 pm   Subject: [JOB] Openings for structural analyst engineer
I want retire somewhere warm, but monsoons....


Dan don'tlosejoemetrsinsemail Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Tue Jan 28, 2014 2:18 pm   Subject: [Xansys] [General] First mail in some time
I guess people are searching the archives!


Dan yeahright Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH ...
  Topic: Element-wise Material Properties
danbohlen

Replies: 25
Views: 32536

PostForum: XANSYS   Posted: Tue Jan 28, 2014 2:17 pm   Subject: [Xansys] Element-wise Material Properties
Yes


Dan kingofthe1worders Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 cube ...
  Topic: Element-wise Material Properties
danbohlen

Replies: 25
Views: 32536

PostForum: XANSYS   Posted: Mon Jan 27, 2014 12:34 pm   Subject: [Xansys] Element-wise Material Properties
Hugo,

Ever hear of polymeric composites? Since each element may have different plys in it some folks might assign a slightly different material property (for bulk stiffness) to each element.


Dan B ...
  Topic: [Xansys] Where are my posts ??
danbohlen

Replies: 3
Views: 5656

PostForum: XANSYS   Posted: Mon Jan 27, 2014 12:32 pm   Subject: [Xansys] Where are my posts ??
Your post made it.

Just no replies yet.

Dan Bohlen
Senior Staff Engineer,
Military HPT Analysis STAR review chairman, Fan and Booster GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 ...
  Topic: [Xansys] Adding result set
danbohlen

Replies: 8
Views: 9715

PostForum: XANSYS   Posted: Mon Jan 27, 2014 4:16 am   Subject: [Xansys] Adding result set
Just for starters - why do you want them all in one .rst?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Fri Jan 24, 2014 5:21 am   Subject: [Xansys] [General] First mail in some time
Yes, that would be me. (cache_n_out is my geocaching handle....)

No wu$$ies (is that gender neutral enough?) need apply......


Dan growapair Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Thu Jan 23, 2014 10:19 am   Subject: [Xansys] [General] First mail in some time
Bullying? Bullying is getting your lunch money taken or getting beat up at school for no reason.

If C.W. administers some tough love or astonishment at the basic lack of knowledge of the asker WHIL ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Thu Jan 23, 2014 10:03 am   Subject: [Xansys] [General] First mail in some time
I like the idea of XANSYS on Facebook.

I've already created the page.

https://www.facebook.com/groups/1386926598194579/


If anyone is on facebook friend me or send me your name and I can add it. ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Thu Jan 23, 2014 6:53 am   Subject: [Xansys] [General] First mail in some time
Rick, Must have been the form letter (below) that scared them off....


Dan toughlove Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 ...
  Topic: Reesult overlay
danbohlen

Replies: 2
Views: 2987

PostForum: XANSYS   Posted: Thu Jan 23, 2014 5:51 am   Subject: Reesult overlay
One way we do that is to plot 3D in raster mode and 2D in vector.

You could plot both in vector and change the colors of the model manually, I think it is the /COLOR command. IN the menu it is unde ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Thu Jan 23, 2014 5:44 am   Subject: [Xansys] [General] First mail in some time
Not here at GE - we know the great business potential of social media!


Dan howthefrickisfacebookgonnaselljetmotors Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 37
Views: 39667

PostForum: XANSYS   Posted: Thu Jan 23, 2014 5:43 am   Subject: [Xansys] [General] First mail in some time
Never thought to look for Ansys on facebook. That's not a bad way to go - with instant messaging potential, graphics upload - all on someone else's bandwidth.



Dan xansyscreator Bohlen
Senior/ SSt ...
  Topic: Reesult overlay
danbohlen

Replies: 2
Views: 2987

PostForum: XANSYS   Posted: Thu Jan 23, 2014 5:40 am   Subject: Reesult overlay
/NOERAS


Dan kingoftheoneworders Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 ...
  Topic: [Xansys] [General] First mail in some time
danbohlen

Replies: 1
Views: 2026

PostForum: XANSYS   Posted: Wed Jan 22, 2014 6:38 am   Subject: [Xansys] [General] First mail in some time
Be careful what you ask for.....

It is seasonal. Come spring there will be a whole new batch of graduate students wanting help on thesis.....


Dan moreisnotawlaysbetter Bohlen
Senior/ SSt Engineer ...
  Topic: Problem with CONTA178
danbohlen

Replies: 16
Views: 19604

PostForum: XANSYS   Posted: Wed Jan 22, 2014 5:48 am   Subject: [Xansys] Problem with CONTA178
I think you'd want to model the pipe with solid elements too.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evenda ...
  Topic: Problem with CONTA178
danbohlen

Replies: 16
Views: 19604

PostForum: XANSYS   Posted: Tue Jan 21, 2014 6:41 am   Subject: [Xansys] Problem with CONTA178
Good idea the start simple, but maybe you are going TOO simple.

Why not model a small section of the pipe and put the gap in it.

Are you planning on using pipe elements and contact? Or 3D element ...
  Topic: Problem with CONTA178
danbohlen

Replies: 16
Views: 19604

PostForum: XANSYS   Posted: Mon Jan 20, 2014 5:37 am   Subject: [Xansys] Problem with CONTA178
Add bricks to either side of the gap.

We use 178's all the time (and their cousins 52's) they are simple, but I've never done a 1 element only model with them.

BTW, a holiday here in the USA, you mi ...
  Topic: Problem with CONTA178
danbohlen

Replies: 16
Views: 19604

PostForum: XANSYS   Posted: Fri Jan 17, 2014 6:53 am   Subject: [Xansys] Problem with CONTA178
You might not have any stresses on the one side of the gap if you fixed it on all degrees of freedom.




Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and B ...
  Topic: Shell-Solid Connection and thermal growth
danbohlen

Replies: 14
Views: 14747

PostForum: XANSYS   Posted: Wed Jan 15, 2014 7:53 am   Subject: [Xansys] Shell-Solid Connection and thermal growth
And as long as the error is small - the connection is OK.

NOW, if you are looking for accurate stress results at right the connection - you better remodel



Dan Bohlen
Senior/ SSt Engineer, Militar ...
  Topic: [Xansys] Applying torque with RBE
danbohlen

Replies: 4
Views: 5670

PostForum: XANSYS   Posted: Mon Dec 16, 2013 6:27 am   Subject: [Xansys] Applying torque with RBE
Looks like for thermal expansion cases - I'd need to use an alpha for the mat'l property and assign a temperature to the centerline node.

-----Original Message-----
From: xansys-bounces@xansys.org [m ...
  Topic: Applying torque with RBE
danbohlen

Replies: 1
Views: 2193

PostForum: XANSYS   Posted: Sun Dec 15, 2013 5:41 am   Subject: Applying torque with RBE
I've ditched the RBE approach. I didn't think it through. I thought RBE3 would generate CE's during solution. I can create the CE's beforehand if I wanted. I'm playing around with MPC contact with ...
  Topic: [Xansys] Applying torque with RBE
danbohlen

Replies: 4
Views: 5670

PostForum: XANSYS   Posted: Sun Dec 15, 2013 5:09 am   Subject: [Xansys] Applying torque with RBE
Not a dumb question at all - I did forget to do this.


Dan slappingthesideofmyhead Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 ...
  Topic: Applying torque with RBE
danbohlen

Replies: 1
Views: 2193

PostForum: XANSYS   Posted: Sat Dec 14, 2013 11:09 am   Subject: Applying torque with RBE
Hello Ansys Wizards,

I thought this would be easy. Create a node at the centerline of my rotating part, create an RBE3 to a node at the end of the shaft. Put a moment on the node and TADA! Have a ...
  Topic: ANSYS Workbench not recognizing named selection
danbohlen

Replies: 4
Views: 7343

PostForum: XANSYS   Posted: Fri Dec 13, 2013 10:21 am   Subject: [Xansys] ANSYS Workbench not recognizing named selection
IN ansys classic the components are stored on the .db not .rst. Could that be the problem?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft ...
  Topic: [Xansys] - modal cyclic symmetry analysis with coriolis forc
danbohlen

Replies: 1
Views: 1670

PostForum: XANSYS   Posted: Tue Dec 10, 2013 2:17 pm   Subject: [Xansys] - modal cyclic symmetry analysis with coriolis forc
Thanks!

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of Phil Vidori
Sent: Tuesday, December 10, 2013 11:58 AM
To: 'ANSYS User Discussion Lis ...
  Topic: - modal cyclic symmetry analysis with coriolis forces and da
danbohlen

Replies: 0
Views: 1243

PostForum: XANSYS   Posted: Tue Dec 10, 2013 5:36 am   Subject: - modal cyclic symmetry analysis with coriolis forces and da
Posting for another…..

I am turbine blade aeromechanics and want to know if any Ansys Solver supports
- modal cyclic symmetry analysis with coriolis forces and damping with solid 185 elemen ...
  Topic: [Xansys] [WB] [STRUCT] Manual substeps with internal pressur
danbohlen

Replies: 8
Views: 8902

PostForum: XANSYS   Posted: Wed Dec 04, 2013 7:22 am   Subject: [Xansys] [WB] [STRUCT] Manual substeps with internal pressur
What's your

KBC,0

Setting?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 ...
  Topic: [Xansys] [WB] [STRUCT] Manual substeps with internal pressur
danbohlen

Replies: 8
Views: 8902

PostForum: XANSYS   Posted: Wed Dec 04, 2013 7:19 am   Subject: [Xansys] [WB] [STRUCT] Manual substeps with internal pressur
Any other boundary conditions other than pressure and preload?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evend ...
  Topic: MAPDL:Pictoral Element Summary and Chaboche
danbohlen

Replies: 3
Views: 4243

PostForum: XANSYS   Posted: Fri Nov 22, 2013 11:18 am   Subject: MAPDL:Pictoral Element Summary and Chaboche
I just searched the word "pictorial" and it was the first hit on the Ansys 14.5 help.

I'd pronounce it sha-bush - sounds French or cha-botch depending on how you feel about it!


Dan amat ...
  Topic: [Xansys] [WB] [STRUCT] Bolt Pretension in Axisymmetric Model
danbohlen

Replies: 3
Views: 8327

PostForum: XANSYS   Posted: Wed Nov 20, 2013 10:25 am   Subject: [Xansys] [WB] [STRUCT] Bolt Pretension in Axisymmetric Model
I haven't seen the beginning of this thread, but we typically do this iterating on gap interference.

You can write a little *DO loop for Ansys to do the iteration.


Dan Bohlen
Senior/ SSt Enginee ...
  Topic: [APDL] Increasing filesize of LDHI in DO loop
danbohlen

Replies: 4
Views: 7126

PostForum: XANSYS   Posted: Fri Nov 15, 2013 6:33 am   Subject: [Xansys] [APDL] Increasing filesize of LDHI in DO loop
Hmm. Not sure why the .db would continue to grow. Are you storing results by mistake on the .db?

Be sure to use save,,,,model and /exit,model.

As for the .dbb you could delete it as you go with ...
  Topic: [APDL] Increasing filesize of LDHI in DO loop
danbohlen

Replies: 4
Views: 7126

PostForum: XANSYS   Posted: Fri Nov 15, 2013 5:29 am   Subject: [Xansys] [APDL] Increasing filesize of LDHI in DO loop
Yep, that's "multi frame restarting" for you. It stores ALL the input load sets.

I still do old school single frame restarts using:

RESCONTROL,,NONE


Dan Bohlen
Senior/ SSt Engineer, Mi ...
  Topic: [help] error message during response spectrum analsys using
danbohlen

Replies: 5
Views: 5935

PostForum: XANSYS   Posted: Sat Nov 09, 2013 5:22 am   Subject: [Xansys] [help] error message during response spectrum anals
All your base belong to us


-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of qingshuang.di
Sent: Friday, November 08, 2013 11:07 AM
To: xansy ...
  Topic: [Xansys] [STRUCT] Deactivating contact connection in Workben
danbohlen

Replies: 2
Views: 2444

PostForum: XANSYS   Posted: Thu Oct 31, 2013 10:25 am   Subject: [Xansys] [STRUCT] Deactivating contact connection in Workben
No WB expert here, but does your contact have birth and death option? Or change the contact stiffness to a small value.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, ...
  Topic: [Xansys] [STRUCT] ANSYS warning - Node does not lie on or ne
danbohlen

Replies: 1
Views: 2933

PostForum: XANSYS   Posted: Thu Oct 31, 2013 7:46 am   Subject: [Xansys] [STRUCT] ANSYS warning - Node does not lie on or ne
Hi Joe,

Posts like this make me feel better about being an Ansys Classic SOILD45/92/95 luddite. :-)

A standard suggestion I had recently forgot - try CDWRITE/ CDREAD?

BTW, Does WB have the moral e ...
  Topic: cleaning out extraneous couples (classic)
danbohlen

Replies: 0
Views: 1230

PostForum: XANSYS   Posted: Mon Oct 21, 2013 6:34 am   Subject: cleaning out extraneous couples (classic)
Hi All,

In ansys classic I created a bunch of couples when the model DOF was errantly at 6 DOFs. So I got a bunch of extraneous ROTX, ROTY, etc couples. I don’t think they do any harm, but I ...
  Topic: [Xansys] [APDL] Naming a plot file
danbohlen

Replies: 12
Views: 11941

PostForum: XANSYS   Posted: Thu Oct 10, 2013 12:20 pm   Subject: [Xansys] [APDL] Naming a plot file
Snipit? Joe, don't tell me you've gone over to the dark side.....workbench!


Dan classicforeverworkbenchnever! Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Boos ...
  Topic: [APDL] Naming a plot file
danbohlen

Replies: 8
Views: 10991

PostForum: XANSYS   Posted: Thu Oct 10, 2013 11:11 am   Subject: [APDL] Naming a plot file
Hi Joe,

I run on a windows box too. We also have CYGWIN installed.


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way ...
  Topic: [APDL] Naming a plot file
danbohlen

Replies: 8
Views: 10991

PostForum: XANSYS   Posted: Thu Oct 10, 2013 10:47 am   Subject: [APDL] Naming a plot file
I think I've done it with a /SYP command in a macro calling a UNIX script to rename the file.

Haven't used it but can you pass a parameter through /RENAME? Or /COPY?


Dan yepapain Bohlen
Seni ...
  Topic: Mesh Error Estimation
danbohlen

Replies: 5
Views: 9366

PostForum: XANSYS   Posted: Wed Oct 09, 2013 7:57 am   Subject: [Xansys] Mesh Error Estimation
Yep, there's no magic bullet. We have a conservative method we use (short of rerunning with a different mesh density.) It does give some false positives (indicating the mesh is not converged - when ...
  Topic: Mesh Error Estimation
danbohlen

Replies: 5
Views: 9366

PostForum: XANSYS   Posted: Tue Oct 08, 2013 4:50 am   Subject: Mesh Error Estimation
Hi Guys,

Does anyone out there have a method for estimating the error for a mesh? Not looking for a thesis paper (found plenty of those online – I get whoozy when a see a page of Greek symbol ...
  Topic: SPLOT PROBLEME FROM IMPORT GEOMETRY
danbohlen

Replies: 7
Views: 8222

PostForum: XANSYS   Posted: Mon Sep 30, 2013 12:09 pm   Subject: [Xansys] SPLOT PROBLEME FROM IMPORT GEOMETRY
You might need to list the SPLOT error - they may not all be the same.

Dan

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of alexandre.meli
S ...
  Topic: SPLOT PROBLEME FROM IMPORT GEOMETRY
danbohlen

Replies: 7
Views: 8222

PostForum: XANSYS   Posted: Mon Sep 30, 2013 9:33 am   Subject: [Xansys] SPLOT PROBLEME FROM IMPORT GEOMETRY
Did you create volumes by hand? IGES doesn't support solids.

What is your company/organization? EPRI 2+2?? What do they do?


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review ch ...
  Topic: [Xansys] Database file growing in a optimization process
danbohlen

Replies: 3
Views: 4934

PostForum: XANSYS   Posted: Mon Sep 30, 2013 4:44 am   Subject: [Xansys] Database file growing in a optimization process
Any chance you are saving results to the .db file. Or is it the .rdb file you are referring to? With the default restart settings it stores ever set of boundary conditions on the .rdb.


Dan Bohle ...
  Topic: Plasticity algorithm error
danbohlen

Replies: 1
Views: 5600

PostForum: XANSYS   Posted: Tue Sep 24, 2013 7:42 am   Subject: Plasticity algorithm error
Hi All,

I’m passing along a question from a colleague. I’ve done some plasticity work, but have never seen this error.

I don’t know if it’ll help, but I am going to suggest he use ...
  Topic: SIZE OF NUMBER DISPLAY AFTER /PNUM
danbohlen

Replies: 4
Views: 4377

PostForum: XANSYS   Posted: Thu Sep 19, 2013 4:10 am   Subject: [Xansys] SIZE OF NUMBER DISPLAY AFTER /PNUM
Not that I know of, but you can do your own numbering via a macro using the /anno command....


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircra ...
  Topic: *GET-ting Pressure values (was RE: [Xansys] FW: SupportCentr
danbohlen

Replies: 0
Views: 1273

PostForum: XANSYS   Posted: Fri Sep 06, 2013 8:01 am   Subject: *GET-ting Pressure values (was RE: [Xansys] FW: SupportCentr
That seemed to work. I doubt I would have been able to sniff that out of the granule files...

Many Thanks!


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Boo ...
  Topic: *GET-ting max/min pressure values.
danbohlen

Replies: 0
Views: 1200

PostForum: XANSYS   Posted: Fri Sep 06, 2013 7:26 am   Subject: *GET-ting max/min pressure values.
(I just noticed I had a terrible subject line. )


Got this question from someone inside GE. I listed some ways to do this below – wondering if there was some undocumented way to do this better. ...
  Topic: SupportCentral Case Escalated, GE Ansys Classic (APDL) group
danbohlen

Replies: 0
Views: 1312

PostForum: XANSYS   Posted: Fri Sep 06, 2013 6:50 am   Subject: SupportCentral Case Escalated, GE Ansys Classic (APDL) group
Got this question from someone inside GE. I listed some ways to do this below – wondering if there was some undocumented way to do this better. I searched Sheldon’s site.

[Original Question]
I ...
  Topic: [apdl] HOW TO USE CREATED ETABLEs IN /SOLUTION
danbohlen

Replies: 5
Views: 6537

PostForum: XANSYS   Posted: Wed Aug 28, 2013 4:00 am   Subject: [Xansys] [apdl] HOW TO USE CREATED ETABLEs IN /SOLUTION
Just a guess, but I doubt "ETABLE" is the cause of the problem....


Dan Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neum ...
  Topic: [Xansys] Urgent assistance is required
danbohlen

Replies: 5
Views: 6098

PostForum: XANSYS   Posted: Tue Aug 27, 2013 6:47 am   Subject: [Xansys] Urgent assistance is required
Muhammad,

If I'm reading your post and you are reading mine - you ARE subscribed to the XANSYS system. This might look like a private conversation between the 2 of us but there are hundreds of XANSY ...
  Topic: [Xansys] Urgent assistance is required
danbohlen

Replies: 5
Views: 6098

PostForum: XANSYS   Posted: Tue Aug 27, 2013 5:56 am   Subject: [Xansys] Urgent assistance is required
Well, your posts are making it to the list. Now it is time for your Ansys question.

Since you are new - I'd suggest looking at the xansys.org webpage. It'll suggest looking for past posts to answe ...
  Topic: [Xansys] Urgent assistance is required
danbohlen

Replies: 5
Views: 6098

PostForum: XANSYS   Posted: Tue Aug 27, 2013 4:49 am   Subject: [Xansys] Urgent assistance is required
Muhammad,

If you got this posting - please reply. It means you are in!


Dan formerlistmiester Bohlen
Senior/ SSt Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft ...
  Topic: [Xansys] help with modelling Threaded pipe
danbohlen

Replies: 0
Views: 1549

PostForum: XANSYS   Posted: Tue Jul 23, 2013 12:36 pm   Subject: [Xansys] help with modelling Threaded pipe
The key thing to know is how the test compared to the analysis. For example, was the deflection more or less. Knowing that, you could look at the assumptions you made and focus on the ones that inch ...
  Topic: Create a volume from two surfaces
danbohlen

Replies: 13
Views: 13804

PostForum: XANSYS   Posted: Tue Jul 23, 2013 7:14 am   Subject: Create a volume from two surfaces
Probably helps to fess up it's a mems application - I think there have been some posts here before. You might get some more responses

In general about the only tip I can give you is there's always a ...
  Topic: Create a volume from two surfaces
danbohlen

Replies: 13
Views: 13804

PostForum: XANSYS   Posted: Tue Jul 23, 2013 4:05 am   Subject: Create a volume from two surfaces
Hmm 1,000's of holes.

Here's a thought: symmetry. Depending on what you are doing it might apply.

2nd thought: reduced properties. If what you are trying to simulate is a loss of stiffness in a pl ...
  Topic: Create a volume from two surfaces
danbohlen

Replies: 13
Views: 13804

PostForum: XANSYS   Posted: Mon Jul 22, 2013 12:36 pm   Subject: Create a volume from two surfaces
Sounds like the holes are "skewed" (not radial). Might think about bottom up modeling. Creating some arcs (4 per "hole"), connecting the keypoints, and creating a volume (VA,ALL ...
  Topic: Create a volume from two surfaces
danbohlen

Replies: 13
Views: 13804

PostForum: XANSYS   Posted: Mon Jul 22, 2013 12:01 pm   Subject: Create a volume from two surfaces
Are you doing this in workbench or the version "formerly known as classic"?

Even with classic's primative solid modeler - you ought to be able to extrude your VEXT portion, create some tape ...
  Topic: theta angle in beam 44 real properties
danbohlen

Replies: 3
Views: 4417

PostForum: XANSYS   Posted: Fri Jul 19, 2013 4:54 am   Subject: [Xansys] theta angle in beam 44 real properties
I forget the question, but it sounded like a hand calculation could be done.

Consider using something other than beams.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman ...
  Topic: [Xansys] How to write a cyclic symmetry coupling for dis-sim
danbohlen

Replies: 0
Views: 1297

PostForum: XANSYS   Posted: Wed Jul 17, 2013 6:10 am   Subject: [Xansys] How to write a cyclic symmetry coupling for dis-sim
I don't know of a built in command that can do it, but you could do something like this:

-Select the cut boundary nodes.
-NWRIT them
-compress them down to one plane NMOD all to a one angular positi ...
  Topic: Regarding issue about meshing of complex model.
danbohlen

Replies: 1
Views: 2239

PostForum: XANSYS   Posted: Tue Jul 16, 2013 11:50 am   Subject: [Xansys] Regarding issue about meshing of complex model.
Well your error is easy - AMES is area meshing - 2D element. SOILD implies you tried to amesh mesh something with a 3D element type.


Dan toerrishumanneedansystoreallyfsomethingup Bohlen
Senior St ...
  Topic: [Xansys] Plastic Model Convergence
danbohlen

Replies: 14
Views: 10483

PostForum: XANSYS   Posted: Tue Jul 16, 2013 9:44 am   Subject: [Xansys] Plastic Model Convergence
Try converting to MPC contact or change the bonded regions to couples or constraint equations.

Standard bonded always contact is still nonlinear and iterates (as well as irritates!).


Dan Bohlen
Se ...
  Topic: [Xansys] Plastic Model Convergence
danbohlen

Replies: 14
Views: 10483

PostForum: XANSYS   Posted: Tue Jul 16, 2013 7:26 am   Subject: [Xansys] Plastic Model Convergence
Perhaps submodel the region of interest? Or are you trying to predict collapse of the structure?

Can you share nay other info?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review ...
  Topic: Missing element types in the library
danbohlen

Replies: 3
Views: 5642

PostForum: XANSYS   Posted: Tue Jul 09, 2013 7:12 am   Subject: [Xansys] Missing element types in the library
Nope not there - Kinda sucks doesn't it?


Dan ansysclassictheuglystepchild Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann W ...
  Topic: Problem using axisymmetric model
danbohlen

Replies: 8
Views: 9489

PostForum: XANSYS   Posted: Mon Jul 08, 2013 1:29 pm   Subject: [Xansys] Problem using axisymmetric model
I guess I'd question why use Shell 208. Maybe it is model size for some university version of Ansys.

Glancing at the online help - yep I t states the Y-axis is the "axis of symmetry" (cen ...
  Topic: Problem using axisymmetric model
danbohlen

Replies: 8
Views: 9489

PostForum: XANSYS   Posted: Mon Jul 08, 2013 10:44 am   Subject: [Xansys] Problem using axisymmetric model
I missed that from the original post. What 1D and 2D elements are you trying to use? Overall what are you trying to do?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairma ...
  Topic: Problem using axisymmetric model
danbohlen

Replies: 8
Views: 9489

PostForum: XANSYS   Posted: Mon Jul 08, 2013 5:07 am   Subject: [Xansys] Problem using axisymmetric model
It is just Ansys convoluted way to say you have nodes with negative X coordinates. Yes, the model needs to be above the X axis.


Dan Xmarksthespot Bohlen
Senior Staff Engineer, Military HPT Anal ...
  Topic: Problem using axisymmetric model
danbohlen

Replies: 8
Views: 9489

PostForum: XANSYS   Posted: Fri Jul 05, 2013 5:16 am   Subject: [Xansys] Problem using axisymmetric model
Ever consider just moving your model such that the radial direction is the global X coordinate?


Dan mygraspoftheobviousisimproving Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review c ...
  Topic: Insight into Lumped mass model (Bladed disk)
danbohlen

Replies: 3
Views: 5913

PostForum: XANSYS   Posted: Wed Jul 03, 2013 7:27 am   Subject: [Xansys] Insight into Lumped mass model (Bladed disk)
Just curious, why do you want a lumped mass approximation?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale ...
  Topic: OT was RE: [Xansys] Modeling Permanent Shrinkage of Material
danbohlen

Replies: 0
Views: 1519

PostForum: XANSYS   Posted: Tue Jul 02, 2013 10:38 am   Subject: OT was RE: [Xansys] Modeling Permanent Shrinkage of Material
Shrinkage? Ask George "Can't Stands ya" Constansa.


Dan likeascaredturtle Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 ...
  Topic: GE is hiring.
danbohlen

Replies: 0
Views: 1538

PostForum: XANSYS   Posted: Wed Jun 26, 2013 9:09 am   Subject: GE is hiring.
You can go to the GE website http://www.ge.com/careers

Probably more jobs in Design engineers than analysts.

Or let me know if you are interested.

NOTE: you have to be a US citizen or green c ...
  Topic: [Xansys] [OT] Happy Tenth Birthday Xansys.org
danbohlen

Replies: 11
Views: 11532

PostForum: XANSYS   Posted: Fri Jun 21, 2013 12:36 pm   Subject: [Xansys] [OT] Happy Tenth Birthday Xansys.org
Which is it? On its side or standing up?

(My guess standing up - more natural convention on taller shape - more surface area for the convection. But then again I'm a structures guy.

Engineering y ...
  Topic: [Xansys] [OT] Was Interference fit
danbohlen

Replies: 12
Views: 14169

PostForum: XANSYS   Posted: Fri Jun 21, 2013 8:58 am   Subject: [Xansys] [OT] Was Interference fit
Low paid stress weiner, 2 kids in college - I'm lucky I can still afford the swill!

(Actually I drink Bud light, but I couldn't use them as an example - I think they are owned by a Dutch company!)

...
  Topic: [Xansys] Interference fit
danbohlen

Replies: 11
Views: 9741

PostForum: XANSYS   Posted: Fri Jun 21, 2013 8:05 am   Subject: [Xansys] Interference fit
Miller High Life - Drink American! :-)



-----Original Message-----
From: xansys-bounces@xansys.org Thank you, Joseph.
I will try your suggestions. They are really helpful.

Don't say they are reall ...
  Topic: [Xansys] [OT] Happy Tenth Birthday Xansys.org
danbohlen

Replies: 11
Views: 11532

PostForum: XANSYS   Posted: Fri Jun 21, 2013 6:45 am   Subject: [Xansys] [OT] Happy Tenth Birthday Xansys.org
Empirical only, but for some reason after each session of extensive testing session- I forget the results.


Dan wheredidileavemycar? Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review c ...
  Topic: [Xansys] Highly Non-linear solution
danbohlen

Replies: 14
Views: 11196

PostForum: XANSYS   Posted: Mon May 13, 2013 7:04 am   Subject: [Xansys] Highly Non-linear solution
You might need to post some output or error messages....


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, ...
  Topic: Ansys peeve
danbohlen

Replies: 0
Views: 1370

PostForum: XANSYS   Posted: Tue May 07, 2013 9:52 am   Subject: Ansys peeve
In both the CBDOF and BFINT there are “tolerances” that can be put on with the command line, but not in the gui. Seems a short putt to fix.

Dan par1putt Bohlen
Senior Staff Engineer, ...
  Topic: [Xansys] [DYNM] Check your modal results. Class 3 error?
danbohlen

Replies: 2
Views: 3143

PostForum: XANSYS   Posted: Thu May 02, 2013 9:28 am   Subject: [Xansys] [DYNM] Check your modal results. Class 3 error?
Sounds Class 3-ish. How much did the results change? How much did you varying the density? What's the nature of the zero density elements?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis ...
  Topic: [Xansys] [OTHER] How to archive ANSYS job?
danbohlen

Replies: 2
Views: 6443

PostForum: XANSYS   Posted: Thu May 02, 2013 9:26 am   Subject: [Xansys] [OTHER] How to archive ANSYS job?
The macro stuff has been pretty stable - mainly due to Ansys Inc, neglect. Storing the macro would be needed and it could be updated if it needed it. But since they may go it and "enhance" ...
  Topic: [Xansys] [OTHER] How to archive ANSYS job?
danbohlen

Replies: 2
Views: 6443

PostForum: XANSYS   Posted: Thu May 02, 2013 7:12 am   Subject: [Xansys] [OTHER] How to archive ANSYS job?
Depending on the number and size of the results files - I'll typically keep them all. At least 1 .db and the files to run all the load cases. And typically a CDWRIT (.cdb) of the .db.

There's no g ...
  Topic: [Xansys] [struc] PSOLVE - Can you live without it?
danbohlen

Replies: 8
Views: 10404

PostForum: XANSYS   Posted: Tue Apr 16, 2013 11:25 am   Subject: [Xansys] [struc] PSOLVE - Can you live without it?
C'mon Joe - if you are in the Ansys "circle of trust" you gotta keep up with current events!



Dan ansysuntouchable Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairma ...
  Topic: save killed elements for each load step
danbohlen

Replies: 1
Views: 2338

PostForum: XANSYS   Posted: Fri Apr 12, 2013 12:20 pm   Subject: [Xansys] save killed elements for each load step
If by "saved" - I think you just need to make a component of them.

Before ekill,all add

CM,killed%i%,elem

And you will have 6 define element component named killed1, killed2,...killed6 t ...
  Topic: [Xansys] [struc] PSOLVE - Can you live without it?
danbohlen

Replies: 8
Views: 10404

PostForum: XANSYS   Posted: Wed Apr 10, 2013 11:54 am   Subject: [Xansys] [struc] PSOLVE - Can you live without it?
Yep, we use it all the time. To do mass checks on parts (we could kill off a full solve I guess). The latest thing we'd use a partial solve for - we've seen some messed up CE's created by the MPC s2 ...
  Topic: No reaction result in load case
danbohlen

Replies: 4
Views: 5473

PostForum: XANSYS   Posted: Wed Apr 10, 2013 7:14 am   Subject: [Xansys] No reaction result in load case
I don't know for sure, but I suspect the reaction forces might not be stored. If you read the help on some of the LC commands (LCSUM) they talk about "summable" results and "non-summab ...
  Topic: No reaction result in load case
danbohlen

Replies: 4
Views: 5473

PostForum: XANSYS   Posted: Wed Apr 10, 2013 5:16 am   Subject: [Xansys] No reaction result in load case
Are the reaction loads there if you just do a /POST1 and SET command?



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 ...
  Topic: [STRUC][THERM]Heating generation by friction on a brake disc
danbohlen

Replies: 1
Views: 2299

PostForum: XANSYS   Posted: Tue Apr 09, 2013 4:06 am   Subject: [Xansys] [STRUC][THERM]Heating generation by friction on a b
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: Second moment of inertia
danbohlen

Replies: 2
Views: 5951

PostForum: XANSYS   Posted: Mon Apr 08, 2013 6:25 am   Subject: [Xansys] Second moment of inertia
Who are you?



-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of jasmine.schenk
Sent: Monday, April 08, 2013 9:01 AM
To: xansys@xansys.org
Sub ...
  Topic: [Xansys] Saving Corresponding Graphical Screen coordiantes
danbohlen

Replies: 8
Views: 9675

PostForum: XANSYS   Posted: Wed Apr 03, 2013 11:02 am   Subject: [Xansys] Saving Corresponding Graphical Screen coordiantes
For some parametric study - you might consider whether extracted values rather than pictures might be more useful.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan ...
  Topic: [Xansys] Saving Corresponding Graphical Screen coordiantes
danbohlen

Replies: 8
Views: 9675

PostForum: XANSYS   Posted: Wed Apr 03, 2013 10:27 am   Subject: [Xansys] Saving Corresponding Graphical Screen coordiantes
Are you wanting to save graphics settings?

Maybe /GSAVE will do what you need.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engine ...
  Topic: ANSYS GUI Command Popup Tooltips
danbohlen

Replies: 6
Views: 7277

PostForum: XANSYS   Posted: Wed Apr 03, 2013 7:19 am   Subject: [Xansys] ANSYS GUI Command Popup Tooltips
HI Matt,

Well, here the file is in a directory that is controlled by the IT group. I doubt I can change that copy of the file. I doubt IT will be willing to change it. But I recall with the menu & ...
  Topic: ANSYS GUI Command Popup Tooltips
danbohlen

Replies: 6
Views: 7277

PostForum: XANSYS   Posted: Tue Apr 02, 2013 1:07 pm   Subject: [Xansys] ANSYS GUI Command Popup Tooltips
Can it be relocated unto a local machine and have Ansys pointed to it?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann W ...
  Topic: [Xansys] Dynamics in French
danbohlen

Replies: 5
Views: 7010

PostForum: XANSYS   Posted: Mon Apr 01, 2013 11:34 am   Subject: [Xansys] Dynamics in French
Here's my best shot

Modal Analysis = Le franais sont snob

Harmonic Analysis = Vous ne comprendrez pas

Spectrum Analysis = Il suffit de prendre mon mot pour lui Frenchie

(or you could try google ...
  Topic: temperature dependent material properties
danbohlen

Replies: 7
Views: 7752

PostForum: XANSYS   Posted: Fri Mar 29, 2013 4:47 am   Subject: [Xansys] temperature dependent material properties
I think the answer is "YOU CANNOT DO IT"

More accurate solution? You could use your "function" and generate a property for every degree F (or C). I don't know of any particular ...
  Topic: [STRUC] No more modes?
danbohlen

Replies: 5
Views: 8720

PostForum: XANSYS   Posted: Thu Mar 28, 2013 4:34 am   Subject: [Xansys] [STRUC] No more modes?
Do you have a frequency range of interest? Did the 434 cover that range?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neuman ...
  Topic: temperature dependent material properties
danbohlen

Replies: 7
Views: 7752

PostForum: XANSYS   Posted: Thu Mar 28, 2013 4:25 am   Subject: [Xansys] temperature dependent material properties
Dear Dr. Ozturk,

I think Joe spelled it out before. YOU take the function and create a TABLE of input for Ansys MP commands.

Or you can continue to flog the dead horse of trying to input material ...
  Topic: Removing Displacement Convergence tool
danbohlen

Replies: 4
Views: 7105

PostForum: XANSYS   Posted: Wed Mar 27, 2013 4:25 am   Subject: [Xansys] Removing Displacement Convergence tool
Workbench or ansys classic?

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of orcun.izgu
Sent: Wednesday, March 27, 2013 5:54 AM
To: xans ...
  Topic: Harmonic Analysis of a Piezo multi-layer transducer (Wb14)
danbohlen

Replies: 48
Views: 54671

PostForum: XANSYS   Posted: Wed Mar 20, 2013 5:29 am   Subject: [Xansys] Harmonic Analysis of a Piezo multi-layer transducer
WANT or need to run in WB? You might be able to get a whole lot more help if you were working in Ansys "classic" APDL....


Dan newAnsysislikenewcoke Bohlen
Senior Staff Engineer, Milita ...
  Topic: Harmonic Analysis of a Piezo multi-layer transducer (Wb14)
danbohlen

Replies: 48
Views: 54671

PostForum: XANSYS   Posted: Tue Mar 19, 2013 10:31 am   Subject: [Xansys] Harmonic Analysis of a Piezo multi-layer transducer
I haven't been following this thread in great detail.

Have you taken a look at verification problems VM175 and VM176 (Ansys 14 APDL)? Sounds similar - not exactly - with what you may be doing.
...
  Topic: Harmonic Analysis of a Piezo multi-layer transducer (Wb14)
danbohlen

Replies: 48
Views: 54671

PostForum: XANSYS   Posted: Tue Mar 19, 2013 4:47 am   Subject: [Xansys] Harmonic Analysis of a Piezo multi-layer transducer
My turn.

You need to be in the "solution" module before solving

/SOLU
SOLVE


The other error is since you didn't solve there's no results file.

So how close are you to graduating?


Da ...
  Topic: OT was RE: [Xansys] scaling the volumes issue?
danbohlen

Replies: 0
Views: 1363

PostForum: XANSYS   Posted: Fri Mar 15, 2013 6:17 am   Subject: OT was RE: [Xansys] scaling the volumes issue?
Super! Now I can credit my impoliteness on my German heritage. That and a taste for beer.


Dan mylastnameusedtohaveumlauts Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman ...
  Topic: how to calculate stresses on selected nodes
danbohlen

Replies: 9
Views: 7646

PostForum: XANSYS   Posted: Thu Mar 14, 2013 9:54 am   Subject: [Xansys] how to calculate stresses on selected nodes
But not this email!


Dan toughlove Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1 ...
  Topic: how to calculate stresses on selected nodes
danbohlen

Replies: 9
Views: 7646

PostForum: XANSYS   Posted: Thu Mar 14, 2013 9:14 am   Subject: [Xansys] how to calculate stresses on selected nodes
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: create a hexahedral mesh for fluid structure interaction
danbohlen

Replies: 2
Views: 3080

PostForum: XANSYS   Posted: Thu Mar 14, 2013 5:31 am   Subject: [Xansys] create a hexahedral mesh for fluid structure intera
Sounds like a good approach. You can use tets and "hybrid" meshing to connect the tets to the bricks. Mesh the brick regions first, then the tets. If you pick a tet element that can als ...
  Topic: [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERROR MESSG.
danbohlen

Replies: 8
Views: 10143

PostForum: XANSYS   Posted: Wed Mar 13, 2013 9:38 am   Subject: [Xansys] [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERR
Frankly, I'm not sure why you didn't map mesh the whole thing.

Was element count a problem?

The input file was just a log file. The "unnecessary" words were me poking around. If you c ...
  Topic: Conta 173 and targe 170
danbohlen

Replies: 3
Views: 4560

PostForum: XANSYS   Posted: Wed Mar 13, 2013 6:22 am   Subject: [Xansys] Conta 173 and targe 170
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0)
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] Clueless Newbie
[ x ] ...
  Topic: [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERROR MESSG.
danbohlen

Replies: 8
Views: 10143

PostForum: XANSYS   Posted: Wed Mar 13, 2013 4:29 am   Subject: [Xansys] [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERR
As I suspected you were trying to use the 87 for pyramids - they don't come in that shape.




-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf O ...
  Topic: [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERROR MESSG.
danbohlen

Replies: 8
Views: 10143

PostForum: XANSYS   Posted: Wed Mar 13, 2013 4:28 am   Subject: [Xansys] [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERR
/BATCH
/COM,ANSYS RELEASE 14.0.3 UP20120322 07:17:15 03/13/2013
/TITLE, PLATE WELD (THERMAL ANALYSIS)
/PREP7
ET,1,70,0,1,0,0 !8-NODED 3D THERMAL SOLID ELEMENT
ET,2,57,0,0,0,0,0,0 ! ...
  Topic: [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERROR MESSG.
danbohlen

Replies: 8
Views: 10143

PostForum: XANSYS   Posted: Wed Mar 13, 2013 4:28 am   Subject: [Xansys] [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERR
Versus debugging your script I input it cleared the volumes and areas and remeshed.

I have no idea why you are using SOLID87. Why not all 70's? Why transition at all? University version?

I set al ...
  Topic: [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERROR MESSG.
danbohlen

Replies: 8
Views: 10143

PostForum: XANSYS   Posted: Tue Mar 12, 2013 8:04 am   Subject: [Xansys] [APDL] USING SOLID87, SOLID70 TOGETHER: GETTING ERR
Is type 3 the SOLID70's? They can do pyramids, but the 87's cannot.

Maybe you need to do an ACLEAR to get rid of the 57's first too. Typically, it is recommended any more to use MESH200 elements ...
  Topic: [Xansys] [STRUC] APDL creating coordinate systems at nodes i
danbohlen

Replies: 4
Views: 5795

PostForum: XANSYS   Posted: Tue Mar 12, 2013 4:11 am   Subject: [Xansys] [STRUC] APDL creating coordinate systems at nodes i
Hmmm...

How about this? Use a cylindrical system about the tube centerline. Then it is SQRT ( hoop_strain^2 + axial_strain^2). Just a vector sum at each node is it not? Assuming this is all ...
  Topic: APDL creating coordinate systems at nodes in circular patter
danbohlen

Replies: 2
Views: 5873

PostForum: XANSYS   Posted: Mon Mar 11, 2013 8:02 am   Subject: [Xansys] APDL creating coordinate systems at nodes in circul
Would the x direction pointing outwards do the trick?

You probably don't need to make 100's of coordinate systems.

Perhaps creating 1 cylindrical system and rotating the nodes into it.

OR if it is ...
  Topic: Convergence issues while solving a composite problem
danbohlen

Replies: 5
Views: 4964

PostForum: XANSYS   Posted: Mon Mar 11, 2013 5:00 am   Subject: [Xansys] Convergence issues while solving a composite proble
You guessed it the solvers don't work! But let's keep this our little secret.... Just kidding - the elements don't work!

Seriously, I think you need to add a little more info. What warnings/errors ...
  Topic: ANSYS Wokbench - Radial compressor blade model
danbohlen

Replies: 2
Views: 3487

PostForum: XANSYS   Posted: Fri Mar 08, 2013 5:22 am   Subject: [Xansys] ANSYS Wokbench - Radial compressor blade model
Try "mesh" instead.


Dan that'sallyouneedtoknow Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 Neumann Way
Evendale, OH ...
  Topic: read the first element number in a selected element set
danbohlen

Replies: 4
Views: 5972

PostForum: XANSYS   Posted: Thu Mar 07, 2013 6:45 am   Subject: [Xansys] read the first element number in a selected element
By the "first element" I assume you mean the one with the lowest number?

El=elnext(0) ! retrieves the number of the lowest numbered element selected

Esel,,,,el ! select the eleme ...
  Topic: Composite on Area, Solid on Volume
danbohlen

Replies: 3
Views: 4256

PostForum: XANSYS   Posted: Thu Mar 07, 2013 5:08 am   Subject: [Xansys] Composite on Area, Solid on Volume
They could work, but you'd want to use the "membrane" stiffness option for the shells.

If it were me, I'd check with the DOF command to make sure I had the rotations on the shell.


Dan Boh ...
  Topic: [Xansys] Working with both APDL AND WORKBENCH
danbohlen

Replies: 18
Views: 19239

PostForum: XANSYS   Posted: Wed Mar 06, 2013 12:32 pm   Subject: [Xansys] Working with both APDL AND WORKBENCH
I don't think it works that way. I don't use WORKBENCH but it sounds like you can "CDWRIT" out a database etc. in to classic.

I think it is a one way trip.

I'll be watching this thread t ...
  Topic: [APDL] How to display FE connections
danbohlen

Replies: 6
Views: 9595

PostForum: XANSYS   Posted: Wed Mar 06, 2013 10:05 am   Subject: [Xansys] [APDL] How to display FE connections
At least until you become famous (or infamous) on the list.


Dan famousorinfamous? Bohlen
Senior Staff Engineer, Military HPT Analysis
STAR review chairman, Fan and Booster
GE Aircraft Engines
1 N ...
  Topic: [Xansys] Working with both APDL AND WORKBENCH
danbohlen

Replies: 18
Views: 19239

PostForum: XANSYS   Posted: Wed Mar 06, 2013 10:04 am   Subject: [Xansys] Working with both APDL AND WORKBENCH
You will be entering a strange, new world of "commands".

For loads (structural) the commands will start with F, D, SFE,

Friction coefficients are material properties - those st ...
  Topic: ANSYS -> NASTRAN conversion
danbohlen

Replies: 12
Views: 12948

PostForum: XANSYS   Posted: Mon Mar 04, 2013 10:37 am   Subject: [Xansys] ANSYS -> NASTRAN conversion
When I saw this subject line the only thing I could think of is that converting from a Ansys user to a NASTRAN user would be more painful than a briss.


Dan asickmindisterriblethingtowaste Bohlen
S ...
  Topic: Composite on Area, Solid on Volume
danbohlen

Replies: 3
Views: 4256

PostForum: XANSYS   Posted: Fri Mar 01, 2013 4:46 am   Subject: [Xansys] Composite on Area, Solid on Volume
You didn't state what element types you are using.

One fundamental issue - among others - is that the garden variety shell has 6 DOFs, your average brick 3 DOFs. You'll want to make them the same a ...
  Topic: [Xansys] About the warning message from EGEN
danbohlen

Replies: 1
Views: 2572

PostForum: XANSYS   Posted: Tue Feb 26, 2013 7:41 am   Subject: [Xansys] About the warning message from EGEN
You don't mention what error you are getting. If it is the element shape checks - you can turn that off

SHPP,OFF

I use this to turn of errors in general

/uis,msgpop,3
/NERR,,,-2
/nopr


Dan tooer ...
  Topic: multiple RST files
danbohlen

Replies: 5
Views: 4383

PostForum: XANSYS   Posted: Mon Feb 25, 2013 6:56 am   Subject: [Xansys] multiple RST files
"You have an economy with words...." - Sir John Gielgud as "Arthur's" butler


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evenda ...
  Topic: Workbench Cyclic Time Problem
danbohlen

Replies: 4
Views: 4120

PostForum: XANSYS   Posted: Fri Feb 22, 2013 10:03 am   Subject: [Xansys] Workbench Cyclic Time Problem
You cut the model in half the solve time didn't change - I don't believe it.

What time of analysis is it? I'm not a WB guy. It looks like it is static structural, but you have some alternating incr ...
  Topic: Workbench Cyclic Time Problem
danbohlen

Replies: 4
Views: 4120

PostForum: XANSYS   Posted: Fri Feb 22, 2013 7:55 am   Subject: [Xansys] Workbench Cyclic Time Problem
Any symmetry you can use to cut the model in half or a forth?

You didn't mention the loading.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, ...
  Topic: Change of units in Ansys
danbohlen

Replies: 2
Views: 3195

PostForum: XANSYS   Posted: Wed Feb 20, 2013 5:51 am   Subject: [Xansys] Change of units in Ansys
Any reason you want/needed to change them? If the model was ready to go before the change, perhaps run as is and convert any results back to MKS.

Based on your description of the loading - just cur ...
  Topic: [Xansys] RES: RES: Post-buckling behavior in shells
danbohlen

Replies: 3
Views: 3890

PostForum: XANSYS   Posted: Tue Feb 19, 2013 12:00 pm   Subject: [Xansys] RES: RES: Post-buckling behavior in shells
Why are people always picking on those snipes?

http://en.wikipedia.org/wiki/Snipe

:-D


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45 ...
  Topic: ANSYS APDL read/write XML file example
danbohlen

Replies: 9
Views: 16456

PostForum: XANSYS   Posted: Fri Feb 15, 2013 10:31 am   Subject: [Xansys] ANSYS APDL read/write XML file example
Hu,

Did a search of the text string "xml" in Ansys online help. Got 230 hits.

Maybe that would be a place to start?


Dan eveyone'sworkingfortheweekend Bohlen
Senior Staff Engineer, M ...
  Topic: [Xansys] Contact Wizard GUI (rant alert)
danbohlen

Replies: 4
Views: 5797

PostForum: XANSYS   Posted: Wed Feb 13, 2013 6:32 am   Subject: [Xansys] Contact Wizard GUI (rant alert)
WOW, thanks! Didn't know that.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 1N152
M/D H110 513-243-2366
...
  Topic: Contact Wizard GUI (rant alert)
danbohlen

Replies: 0
Views: 1238

PostForum: XANSYS   Posted: Tue Feb 12, 2013 10:23 am   Subject: Contact Wizard GUI (rant alert)
While building a dozen or so bonded contacts – it occurs to me the defaults on the GUI never change.

Hmmm, if the user builds a contact with certain settings – might be a good assumptio ...
  Topic: [Xansys] Connecting Shells to Brick w/ MPC contact
danbohlen

Replies: 3
Views: 4480

PostForum: XANSYS   Posted: Tue Feb 12, 2013 7:44 am   Subject: [Xansys] Connecting Shells to Brick w/ MPC contact
Yes, but it seems Ansys wasn't happy about an exterior node "around the corner" of the surface of interest.

Again, an error that stated "There may be a node selected that does not appe ...
  Topic: [Xansys] Connecting Shells to Brick w/ MPC contact
danbohlen

Replies: 3
Views: 4480

PostForum: XANSYS   Posted: Mon Feb 11, 2013 1:22 pm   Subject: [Xansys] Connecting Shells to Brick w/ MPC contact
Thanks Joe. That seems to have been the problem. I thought I combed through the node components well enough.

It would be nice if the error message was a bit more straight forward. (hint, hint Ansy ...
  Topic: Connecting Shells to Brick w/ MPC contact
danbohlen

Replies: 0
Views: 1501

PostForum: XANSYS   Posted: Mon Feb 11, 2013 12:49 pm   Subject: Connecting Shells to Brick w/ MPC contact
Hi All,

Any tips on this? I seem to be able to get the elements built occasionally. (Built and ran a simple test case.) But times I get this error.


*** WARNING *** CP = 518.298 TIME= 14:42:39 ...
  Topic: [Xansys] [STRUCT] Centroid of mode shape
danbohlen

Replies: 16
Views: 15778

PostForum: XANSYS   Posted: Fri Feb 08, 2013 11:52 am   Subject: [Xansys] [STRUCT] Centroid of mode shape
Joshua,

It has been a while, but I recall Ansys could scale either the maximum to "1" or scaled "by the mass matrix". Not committed to memory because both are arbitrary.

If you ...
  Topic: [Xansys] [STRUCT] Centroid of mode shape
danbohlen

Replies: 16
Views: 15778

PostForum: XANSYS   Posted: Thu Feb 07, 2013 1:07 pm   Subject: [Xansys] [STRUCT] Centroid of mode shape
Just remember if this *IS* a modal analysis the actual size of the displacements are arbitrary. So if you are looking for a ratio - like the Cg moved 2% - that'll work. If modal and you want an ab ...
  Topic: [Xansys] [STRUCT] Centroid of mode shape
danbohlen

Replies: 16
Views: 15778

PostForum: XANSYS   Posted: Thu Feb 07, 2013 12:56 pm   Subject: [Xansys] [STRUCT] Centroid of mode shape
Before I give you gun - I'll try to prevent you from shooting you own foot. There is an easy way to do it.

How is this model constructed? Beams, bricks?

Is it a modal analysis or some forced vibra ...
  Topic: Areas selection
danbohlen

Replies: 2
Views: 3287

PostForum: XANSYS   Posted: Thu Feb 07, 2013 12:20 pm   Subject: [Xansys] Areas selection
I typically haven't tried to select areas based on location. From the online help it states that picking based on location is based on

LOC
X, Y, Z
X, Y, or Z center (picking "hot spot" ...
  Topic: [Xansys] Fwd: [STRUCT] Centroid of mode shape
danbohlen

Replies: 0
Views: 1375

PostForum: XANSYS   Posted: Thu Feb 07, 2013 12:15 pm   Subject: [Xansys] Fwd: [STRUCT] Centroid of mode shape
Do you want the centroid of the deflected shape?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 1N152
M/D H110 ...
  Topic: [APDL NODE(x,y,z) command]
danbohlen

Replies: 10
Views: 19030

PostForum: XANSYS   Posted: Wed Feb 06, 2013 6:01 am   Subject: [Xansys] [APDL NODE(x,y,z) command]
Strange, I introduced myself off list and haven't heard a peep outta him.



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 ...
  Topic: [Xansys] [STRUC] cnvtol hazards(?)
danbohlen

Replies: 8
Views: 11178

PostForum: XANSYS   Posted: Wed Feb 06, 2013 5:50 am   Subject: [Xansys] [STRUC] cnvtol hazards(?)
AH.

Well, if it a path dependent (like friction) class of problem - it might. I guess in that case you might use the Ansys default or tighter.

The same check applies - make the tolerance tighter at ...
  Topic: [APDL NODE(x,y,z) command]
danbohlen

Replies: 10
Views: 19030

PostForum: XANSYS   Posted: Wed Feb 06, 2013 5:40 am   Subject: [Xansys] [APDL NODE(x,y,z) command]
Alas, I believe Giuseppe is on XANSYS probation for a spell.

I'm not sure if his penance includes receiving posts, but I don't think we'll seeing posts from him for a while.

It does bring to mind a ...
  Topic: [Xansys] [STRUC] cnvtol hazards(?)
danbohlen

Replies: 8
Views: 11178

PostForum: XANSYS   Posted: Wed Feb 06, 2013 5:35 am   Subject: [Xansys] [STRUC] cnvtol hazards(?)
Typically, the default values Ansys uses for force and moment work for most class of problems.

You could consider the applied load and the tolerance to see if they are reasonable. If you are applyin ...
  Topic: [Xansys] Shell 181 and CBDOF
danbohlen

Replies: 4
Views: 7352

PostForum: XANSYS   Posted: Tue Feb 05, 2013 2:36 pm   Subject: [Xansys] Shell 181 and CBDOF
Hope there's some flame retardant on that cardboard!


Dan weinieroast Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col K1.5 ...
  Topic: [Xansys] Shell 181 and CBDOF
danbohlen

Replies: 4
Views: 7352

PostForum: XANSYS   Posted: Tue Feb 05, 2013 7:43 am   Subject: [Xansys] Shell 181 and CBDOF
Update.

Ernst, that is the consensus on how to pull this off. Building a little test case now.

Thanks for the interest.

(BTW, love the name of your town!)

Dan Bohlen
Senior Staff Engineer, Mili ...
  Topic: Circumventing AL command 10 line limit
danbohlen

Replies: 8
Views: 5577

PostForum: XANSYS   Posted: Mon Feb 04, 2013 10:43 am   Subject: [Xansys] Circumventing AL command 10 line limit
Just for the record....


Name Matthew Rich
Job Title Edison Engineering Development Program
Industry Focus Group GE Power & Water
Business Segment Power & Water
Sub-Business PW-ENG ...
  Topic: Circumventing AL command 10 line limit
danbohlen

Replies: 8
Views: 5577

PostForum: XANSYS   Posted: Mon Feb 04, 2013 10:39 am   Subject: [Xansys] Circumventing AL command 10 line limit
Maybe we'll try to service him on our internal list. It is interesting people find XANSYS before the GE internal "Support Central"


Dan he'smybrotherandheISheavy Bohlen
Senior Staff En ...
  Topic: Shell 181 and CBDOF
danbohlen

Replies: 0
Views: 1322

PostForum: XANSYS   Posted: Mon Feb 04, 2013 9:06 am   Subject: Shell 181 and CBDOF
Still researching this – going to call our ASD after lunch, but the line below from the Ansys help isn’t very encouraging.

I’ve got a brick submodel that I’m hoping to cut b ...
  Topic: [APDL NODE(x,y,z) command]
danbohlen

Replies: 10
Views: 19030

PostForum: XANSYS   Posted: Mon Feb 04, 2013 6:22 am   Subject: [Xansys] [APDL NODE(x,y,z) command]
Hola Amigo,

Why not use the nsel,unselect command? Any other way to separate the nodes? Different elements/components?

Why do you have coincident nodes?

Why are you trying to store them in an a ...
  Topic: [FTT_SPAM] - [Xansys] [APDL NGEN command]
danbohlen

Replies: 30
Views: 20197

PostForum: XANSYS   Posted: Fri Feb 01, 2013 6:40 am   Subject: [Xansys] [FTT_SPAM] - [APDL NGEN command]
The subject line says it all "SPAM"


Dan spamtheothermysterymeat Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, OH 45215
Build 90 Col ...
  Topic: [FTT_SPAM] - [Xansys] [APDL NGEN command]
danbohlen

Replies: 30
Views: 20197

PostForum: XANSYS   Posted: Fri Feb 01, 2013 6:32 am   Subject: [Xansys] [FTT_SPAM] - [APDL NGEN command]
Thanks for the blow by blow updates. The suspense was killing me...


Dan thevolumeofpostsISkillingme Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evend ...
  Topic: [FTT_SPAM] - [Xansys] [APDL NGEN command]
danbohlen

Replies: 30
Views: 20197

PostForum: XANSYS   Posted: Fri Feb 01, 2013 5:49 am   Subject: [Xansys] [FTT_SPAM] - [APDL NGEN command]
If this is a cut and paste you are missing a comma

E,n1,n2



Dan spoonfeeder Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way
Evendale, OH� 452 ...
  Topic: [APDL Forces on node in spring COMBIN14 element]
danbohlen

Replies: 9
Views: 11037

PostForum: XANSYS   Posted: Fri Jan 25, 2013 7:47 am   Subject: [Xansys] [APDL Forces on node in spring COMBIN14 element]
So WHY do you want to pull the force value from every node in the model?

Obviously you can (a) use the *GET command and loop through them all or (b) use PRNLD and right a script to read the values. ...
  Topic: [APDL Forces on node in spring COMBIN14 element]
danbohlen

Replies: 9
Views: 11037

PostForum: XANSYS   Posted: Thu Jan 24, 2013 5:25 am   Subject: [Xansys] [APDL Forces on node in spring COMBIN14 element]
For forces on a node (if it isn't the same as the element hooked to it) look at FSUM or NFORCE commands.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Neumann Way ...
  Topic: [Xansys] Menu Layout info
danbohlen

Replies: 13
Views: 17111

PostForum: XANSYS   Posted: Fri Jan 11, 2013 8:24 am   Subject: [Xansys] Menu Layout info
Joe,

Wikipedia has John in FLA somewhere - so you are as close as anyone to find him!

Interesting reference on the page...

1. Chen, Shen-Yeh (2006-01-11). "The Unofficial History of ANSYS from ...
  Topic: [Xansys] Menu Layout info
danbohlen

Replies: 13
Views: 17111

PostForum: XANSYS   Posted: Fri Jan 11, 2013 7:01 am   Subject: [Xansys] Menu Layout info
Tried that, but that's not the issue. The issue is the little dialog box doesn't come up. No error messages no nuttin. I type nsel,,p and nothing happens. All the other "selects" work. ...
  Topic: [Xansys] Menu Layout info
danbohlen

Replies: 13
Views: 17111

PostForum: XANSYS   Posted: Fri Jan 11, 2013 6:50 am   Subject: [Xansys] Menu Layout info
I tripped myself up with that a couple of weeks ago. Started an ansys session without anything in the toolbar. Still didn't work.

Thanks anyway,


Dan stillconfused Bohlen
Senior Staff Engineer, ...
  Topic: [Xansys] Menu Layout info
danbohlen

Replies: 13
Views: 17111

PostForum: XANSYS   Posted: Thu Jan 10, 2013 11:44 am   Subject: [Xansys] Menu Layout info
Thanks. Tried it and also tried the Launcher reset all settings. Still no NSEL,,P from command line or gui. :-(

One interesting thing is the Ansys menu do refer to the product as "classic&q ...
  Topic: Menu Layout info
danbohlen

Replies: 0
Views: 1294

PostForum: XANSYS   Posted: Thu Jan 10, 2013 10:24 am   Subject: Menu Layout info
Hi All,

Does anyone know where the info is saved when you do MenuCtrls > Save menu Layout? This is for Ansys 13 64bit install.

I think I need to delete the file. When I do NSEL,,P no picking ...
  Topic: How to make a closed loop with one skin/loft function?
danbohlen

Replies: 4
Views: 4836

PostForum: XANSYS   Posted: Wed Jan 09, 2013 6:20 am   Subject: [Xansys] How to make a closed loop with one skin/loft functi
Do you have access to any other CAD software?


Dan Louis Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Nuemann Way
Evendale, OH 45215
Build 90 Col K1.5 1N152
M/D H ...
  Topic: Surface to surface (s2s) contact macro
danbohlen

Replies: 0
Views: 1648

PostForum: XANSYS   Posted: Fri Jan 04, 2013 8:12 am   Subject: Surface to surface (s2s) contact macro
Hi All,

I was going to write a macro to generate some s2s contact, so I grabbed the log file after using the wizard. There’s one undocumented command used (twice):

NSLE,A,CT2

NSLE,A,CT2 ...
  Topic: 1D Longitidunal Vibration of a Bar
danbohlen

Replies: 3
Views: 4963

PostForum: XANSYS   Posted: Fri Jan 04, 2013 4:57 am   Subject: [Xansys] 1D Longitidunal Vibration of a Bar
Who are u?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Nuemann Way
Evendale, OH 45215
Build 90 Col K1.5 1N152
M/D H110 513-243-2366
Dial Comm *332-2366
...
  Topic: stress error for orthotropic material
danbohlen

Replies: 2
Views: 3000

PostForum: XANSYS   Posted: Fri Jan 04, 2013 4:40 am   Subject: [Xansys] stress error for orthotropic material
Maybe convert to isotropic material for mesh check out?



Dan takingashot Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Nuemann Way
Evendale, OH 45215
Build 90 Col ...
  Topic: APDL command to probe contact reaction forces
danbohlen

Replies: 1
Views: 4871

PostForum: XANSYS   Posted: Thu Jan 03, 2013 11:48 am   Subject: [Xansys] APDL command to probe contact reaction forces
If there ARE forces there, they should be accessible.

If you are doing a vibration analysis the contacts MIGHT be inactive. At least in modal analysis it is either open or closed. You could always ...
  Topic: I think it is corrupted/
danbohlen

Replies: 0
Views: 1644

PostForum: XANSYS   Posted: Fri Dec 28, 2012 12:24 pm   Subject: I think it is corrupted/
Volume 344 is being meshed entirely with SOLID185 tetrahedra, which
can be much less accurate than bricks. Use quadratic (10-node)
tetrahedra if available.

*** WARNING *** CP = 10.826 TIME= 14 ...
  Topic: Damping for Large Mass Hyperelastic Full Transient
danbohlen

Replies: 6
Views: 6657

PostForum: XANSYS   Posted: Thu Dec 27, 2012 8:41 am   Subject: [Xansys] Damping for Large Mass Hyperelastic Full Transient
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] Picking stopped
danbohlen

Replies: 2
Views: 5739

PostForum: XANSYS   Posted: Wed Dec 26, 2012 11:44 am   Subject: [Xansys] Picking stopped
Guess I found it. Made an abbreviation with name VSEL. Not sure why it zapped NSEL.


Dan PTIpardontheinterupttion Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Nue ...
  Topic: Picking stopped
danbohlen

Replies: 0
Views: 1383

PostForum: XANSYS   Posted: Wed Dec 26, 2012 11:41 am   Subject: Picking stopped
Hi All,

Have a database I’ve been using for a week. Just today some graphic picking stops. Lines work, volume and nodes do not. Haven’t tested the rest.

I have hit the “reset p ...
  Topic: [APDL] Laminate Shear Force Input
danbohlen

Replies: 11
Views: 13251

PostForum: XANSYS   Posted: Wed Dec 26, 2012 8:14 am   Subject: [Xansys] [APDL] Laminate Shear Force Input
You are running the I beam sections separately?

What is the problem with the shear in the web?

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf ...
  Topic: [APDL] Laminate Shear Force Input
danbohlen

Replies: 11
Views: 13251

PostForum: XANSYS   Posted: Wed Dec 26, 2012 7:28 am   Subject: [Xansys] [APDL] Laminate Shear Force Input
Couple of ideas.

1) Always put your affiliation on each post - or you might get spanked.
2) Wouldn't you want to spread out the shear force along the entire length? It is more than one element?
3) ...
  Topic: [APDL] Laminate Shear Force Input
danbohlen

Replies: 11
Views: 13251

PostForum: XANSYS   Posted: Wed Dec 26, 2012 5:33 am   Subject: [Xansys] [APDL] Laminate Shear Force Input
You might want to add a few more details here. What's your structure look like? What element type are you using? What type of problem/issue are you trying to solve? How does the "mesh get ru ...
  Topic: How to calculate principal stress using fringe patterns?
danbohlen

Replies: 9
Views: 9368

PostForum: XANSYS   Posted: Fri Dec 21, 2012 12:58 pm   Subject: [Xansys] How to calculate principal stress using fringe patt
I actually hardware?

-----Original Message-----
From: xansys-bounces@xansys.org Photoelasticity did come to mind when he said "fringes", but I didn't
even consider it. The last test I was ...
  Topic: How to calculate principal stress using fringe patterns?
danbohlen

Replies: 9
Views: 9368

PostForum: XANSYS   Posted: Fri Dec 21, 2012 11:42 am   Subject: [Xansys] How to calculate principal stress using fringe patt
Hi Chris,

Photoelasticity did come to mind when he said "fringes", but I didn't even consider it. The last test I was involved with was about 1989. I think they closed down the lab here i ...
  Topic: Composite Volume with Contact elements
danbohlen

Replies: 1
Views: 2421

PostForum: XANSYS   Posted: Fri Dec 21, 2012 5:48 am   Subject: [Xansys] Composite Volume with Contact elements
Yes. There are several ways to "glue" parts together.

- If the nodes line up you could couple or use a flow through mesh.
- If the node patterns do not match you could use CEINT or CONTAC ...
  Topic: How to calculate principal stress using fringe patterns?
danbohlen

Replies: 9
Views: 9368

PostForum: XANSYS   Posted: Fri Dec 21, 2012 5:44 am   Subject: [Xansys] How to calculate principal stress using fringe patt
Do fringes = contours?

Lots of controls under the /CONTOUR command. (Maybe that's the issue you are looking for a /FRINGE command...)

Dan havenofringingideawhatyouraskin Bohlen
Senior Staff ...
  Topic: [Xansys] Reaction Distribution
danbohlen

Replies: 1
Views: 2253

PostForum: XANSYS   Posted: Fri Dec 21, 2012 5:39 am   Subject: [Xansys] Reaction Distribution
Now that the administrative stuff is out of the way....

How few is few? If you are only putting on a small load I can easily see that might be reacted out very near the loaded end.


Dan Bohlen
Sen ...
  Topic: [Xansys] Reaction Distribution
danbohlen

Replies: 1
Views: 2253

PostForum: XANSYS   Posted: Fri Dec 21, 2012 5:37 am   Subject: [Xansys] Reaction Distribution
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: Automatic Contact Detection
danbohlen

Replies: 0
Views: 1351

PostForum: XANSYS   Posted: Wed Dec 19, 2012 10:50 am   Subject: Automatic Contact Detection
Hi All,

I vaguely recall seeing that WORKBENCH can do some sort of detection of nearby bodies and build contacts between them. Would it work on a APDL mesh. I have a model with a bunch of meshed vo ...
  Topic: accurate timing output from ANSYS
danbohlen

Replies: 8
Views: 8760

PostForum: XANSYS   Posted: Tue Dec 18, 2012 11:15 am   Subject: [Xansys] Festivus: Was: [accurate timing output from ANSYS]
I think it is now time for the feats of strength.


Dan Ifindyourbeliefsystemfacsinating Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Nuemann Way
Evendale, OH 45215 ...
  Topic: accurate timing output from ANSYS
danbohlen

Replies: 8
Views: 8760

PostForum: XANSYS   Posted: Tue Dec 18, 2012 8:54 am   Subject: [Xansys] accurate timing output from ANSYS
There is a *GET for cpu time and wall clock time.

Happy Festivus!

Dan anotherfestivusmircale Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
1 Nuemann Way
Evendale, OH ...
  Topic: How to select elements within a particular shape in a body!!
danbohlen

Replies: 6
Views: 5075

PostForum: XANSYS   Posted: Thu Dec 13, 2012 11:07 am   Subject: [Xansys] How to select elements within a particular shape in
Perhaps a spherical coordinate system with some parameters? I believe you can define ELLIPSOID systems.

Then it would be as simple as defining and activating the system and then

NSEL,,LOC,X,..... ...
  Topic: [STRUCT] VOLUME SYMMETRY ERROR
danbohlen

Replies: 3
Views: 4459

PostForum: XANSYS   Posted: Sun Dec 09, 2012 5:41 am   Subject: [Xansys] [STRUCT] VOLUME SYMMETRY ERROR
DOES the original volume have some bad elements? Do you want to duplicate them? Maybe remesh the volume first? If you want the elements how they are you could turn off element shape checking befor ...
  Topic: [Xansys] [APDL Divide Area by line error with meshed lines]
danbohlen

Replies: 0
Views: 2747

PostForum: XANSYS   Posted: Fri Dec 07, 2012 10:59 am   Subject: [Xansys] [APDL Divide Area by line error with meshed lines]
:-)

I *AM* and FEA geek (and when my daughters need help with calculus homework - a math nerd). Maybe it's because I was a Design Engineer for a while....

Unless this guy's thesis is "Demon ...
  Topic: [APDL Divide Area by line error with meshed lines]
danbohlen

Replies: 7
Views: 9573

PostForum: XANSYS   Posted: Fri Dec 07, 2012 8:42 am   Subject: [Xansys] [APDL Divide Area by line error with meshed lines]
Yep, sounds like your prof is an idiot or just an impractical ivory tower mental meat stroker. So TELL him there are hardpoints in the model and get the job done. Is the idiot going to pull up your ...
  Topic: [APDL Divide Area by line error with meshed lines]
danbohlen

Replies: 7
Views: 9573

PostForum: XANSYS   Posted: Fri Dec 07, 2012 8:10 am   Subject: [Xansys] [APDL Divide Area by line error with meshed lines]
I see SO many issues on the list about hardpoints. I must be leaving a sheltered life. Be involved with FEA for 20 years and never saw a model with hard points. Maybe I'm missing out.



Dan chunki ...
  Topic: Evaluating the stiffness of a structure
danbohlen

Replies: 5
Views: 5513

PostForum: XANSYS   Posted: Thu Nov 29, 2012 6:31 am   Subject: [Xansys] Evaluating the stiffness of a structure
Well, your problem, as stated, is very general. With no more info about your "structure" or its loading - it'll be difficult to give you any clever ideas on how to improve the process (re ...
  Topic: Evaluating the stiffness of a structure
danbohlen

Replies: 5
Views: 5513

PostForum: XANSYS   Posted: Thu Nov 29, 2012 6:02 am   Subject: [Xansys] Evaluating the stiffness of a structure
Sounds like you are doing what you can. Odds are you are NOT getting the right stiffness in the global model. You can check when you do your submodel checks (reaction forces the same, stresses the s ...
  Topic: [Xansys] Rigid body solution will not complete.
danbohlen

Replies: 1
Views: 7407

PostForum: XANSYS   Posted: Wed Nov 28, 2012 12:04 pm   Subject: [Xansys] Rigid body solution will not complete.
OK, this might be too obvious, but do you have either of those versions available to you.


Dan inchargeoftheobvious Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Avi ...
  Topic: [Xansys] Multi- CPU's
danbohlen

Replies: 8
Views: 10702

PostForum: XANSYS   Posted: Wed Nov 28, 2012 12:02 pm   Subject: [Xansys] Multi- CPU's
If you use a command line Cygwin launcher it is just -cpu 2.


Dan mo'power Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 ...
  Topic: [Xansys] dumping results file
danbohlen

Replies: 1
Views: 1987

PostForum: XANSYS   Posted: Mon Nov 19, 2012 5:30 am   Subject: [Xansys] dumping results file
Just guessing here, but did you solve with multiple cpus?

If so, invoke the same number when you try to dump it out...



Dan beingthankfulforashortweek Bohlen
Senior Staff Engineer, Military HPT ...
  Topic: Tensile Crep Test
danbohlen

Replies: 3
Views: 4489

PostForum: XANSYS   Posted: Wed Nov 14, 2012 5:09 am   Subject: [Xansys] Tensile Crep Test
I bet if you did a search in the Ansys manual with the word "creep" you'd get a link or two to "verification problems" that would be what you are looking for.


Dan STFM Bohlen ...
  Topic: Get mass by component
danbohlen

Replies: 1
Views: 2638

PostForum: XANSYS   Posted: Tue Nov 13, 2012 2:19 pm   Subject: [Xansys] Get mass by component
Select the portion of the model you want the weight for - each "component"

Due a partial solution (PSOLVE) and the ansys output gives you the MASS.


Dan thatwaseasy Bohlen
Senior Staff ...
  Topic: Surface Solution for SOLID45 Element?
danbohlen

Replies: 7
Views: 8350

PostForum: XANSYS   Posted: Tue Nov 13, 2012 5:43 am   Subject: [Xansys] Surface Solution for SOLID45 Element?
Apply a tiny pressure to all sides and use the other keyoption.

Are you modeling 1 element? Or interested of the surface stress of internal faces?


Dan feelinglikeIamgivingaguntoababe Bohlen
Sen ...
  Topic: [Xansys] R: WAY OT RE: R: [APDL beam 4 Stiffness]
danbohlen

Replies: 1
Views: 2912

PostForum: XANSYS   Posted: Wed Nov 07, 2012 8:23 am   Subject: [Xansys] R: WAY OT RE: R: [APDL beam 4 Stiffness]
Well, I was hoping by setting a bad example....we'd learn not to go that path...

There's a belief that it is evitable that democracies will bankrupt themselves when some voters see they can just vote ...
  Topic: WAY OT RE: [Xansys] R: [APDL beam 4 Stiffness]
danbohlen

Replies: 0
Views: 1301

PostForum: XANSYS   Posted: Wed Nov 07, 2012 6:39 am   Subject: WAY OT RE: [Xansys] R: [APDL beam 4 Stiffness]
You are welcome! My father served in the 3rd army in France and Germany during WWII. His brother was wounded during training.

Maybe you all can return the favor and save us from our gov't (and ours ...
  Topic: Softening branch stress-strain curve
danbohlen

Replies: 9
Views: 16007

PostForum: XANSYS   Posted: Tue Nov 06, 2012 12:20 pm   Subject: [Xansys] Softening branch stress-strain curve
Want to post you're the end of your output/error file?


-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of maha.hassan
Sent: Tuesday, November ...
  Topic: [APDL beam 4 Stiffness]
danbohlen

Replies: 4
Views: 4122

PostForum: XANSYS   Posted: Tue Nov 06, 2012 10:54 am   Subject: [Xansys] [APDL beam 4 Stiffness]
If you are not getting any responses it might be because your question is not clear, or people can't access the link (I can't), or you are assuming people have read and recall the entire thread of th ...
  Topic: Pressure on shell structure ( Felix Candela)
danbohlen

Replies: 13
Views: 12859

PostForum: XANSYS   Posted: Mon Nov 05, 2012 12:21 pm   Subject: [Xansys] Pressure on shell structure ( Felix Candela)
I haven't been following this thread - what element type are you trying to pull a Sxy stress from? Did you problem solve completely? Can you see a displaced shape? Did play around if the output sto ...
  Topic: [Xansys] multi-frame restart and .rst files missing
danbohlen

Replies: 5
Views: 9450

PostForum: XANSYS   Posted: Mon Nov 05, 2012 10:43 am   Subject: [Xansys] multi-frame restart and .rst files missing
You set whether you are doing a a single or multiframe restart with the RESCONT command. Multiframe is the default I believe.

Did you change jobnames between steps?

Perhaps not use restarts, jus ...
  Topic: [Struct Element Combin14]
danbohlen

Replies: 3
Views: 1641

PostForum: XANSYS   Posted: Wed Oct 31, 2012 4:35 am   Subject: [Xansys] [Struct Element Combin14]
You better change it or the prof will recognize it is someone else's homework! :-D


Dan atGEitiscalled"leveraging" Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engin ...
  Topic: Pretension loads
danbohlen

Replies: 1
Views: 2703

PostForum: XANSYS   Posted: Wed Oct 31, 2012 4:33 am   Subject: [Xansys] Pretension loads
Half a bolt , half a bolt load.


Dan igotthis Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floo ...
  Topic: blast simulation: subgrid too large for Academic version...
danbohlen

Replies: 2
Views: 2793

PostForum: XANSYS   Posted: Wed Oct 31, 2012 4:32 am   Subject: [Xansys] blast simulation: subgrid too large for Academic ve
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] pre-stressed modal of a disk
danbohlen

Replies: 0
Views: 1289

PostForum: XANSYS   Posted: Tue Oct 30, 2012 7:50 am   Subject: [Xansys] pre-stressed modal of a disk
Theoretical exercise or real life problem?

Is the thing free-free or not? Can't have it both ways.

2D or 3D analysis?



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engine ...
  Topic: Selecting nodes in local cylindrical coordinates
danbohlen

Replies: 2
Views: 3358

PostForum: XANSYS   Posted: Tue Oct 30, 2012 6:53 am   Subject: [Xansys] Selecting nodes in local cylindrical coordinates
X marks the spot


X = radial direction for a cylindrical section.


-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of maha.hassan
Sent: Tuesd ...
  Topic: Values on the legend bar is missing
danbohlen

Replies: 3
Views: 5284

PostForum: XANSYS   Posted: Fri Oct 26, 2012 4:40 am   Subject: [Xansys] Values on the legend bar is missing
I'd like to see a pic of that.



Dan doubtingthomas Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd ...
  Topic: WAY OT (was RE: [Xansys] PB : solving analyse pressure)
danbohlen

Replies: 0
Views: 1178

PostForum: XANSYS   Posted: Wed Oct 24, 2012 12:33 pm   Subject: WAY OT (was RE: [Xansys] PB : solving analyse pressure)
OK Chris. Is the time wasting part posting to XANSYS or listening to morons on talk-radio?

I just want to compete on a level playing field.


Dan upoke1eyeout-ipokeout2towin!! Bohlen
Senior Staff ...
  Topic: PB : solving analyse pressure
danbohlen

Replies: 7
Views: 13460

PostForum: XANSYS   Posted: Wed Oct 24, 2012 12:17 pm   Subject: [Xansys] PB : solving analyse pressure
(It has been awhile since I've used this....)

STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS p ...
  Topic: PB : solving analyse pressure
danbohlen

Replies: 7
Views: 13460

PostForum: XANSYS   Posted: Wed Oct 24, 2012 12:15 pm   Subject: [Xansys] PB : solving analyse pressure
David,

This should be the Ansys error message that should come up with the pivot error. Well done.



Dan welcometoFEA101 Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines ...
  Topic: [Xansys] [APDL] [STRUCT] Mesh study / Oscillation in stress
danbohlen

Replies: 6
Views: 9277

PostForum: XANSYS   Posted: Wed Oct 24, 2012 7:08 am   Subject: [Xansys] [APDL] [STRUCT] Mesh study / Oscillation in stress
Assuming your model is small, but best way would be to mesh the entire thing with the same mesh density. If you just do one tiny area near the area of interest you might be tweaking the overall stiff ...
  Topic: [Xansys] Query:surface mesh separation
danbohlen

Replies: 5
Views: 6438

PostForum: XANSYS   Posted: Wed Oct 24, 2012 7:05 am   Subject: [Xansys] Query:surface mesh separation
Any chance the deformation makes sense? If the soft material is loaded heavily in one region it might deform enough to lose contact nearby. Total speculation on my part. There's also a chance there ...
  Topic: [Xansys] Weird Contact Convergence
danbohlen

Replies: 4
Views: 4717

PostForum: XANSYS   Posted: Fri Oct 19, 2012 12:17 pm   Subject: [Xansys] Weird Contact Convergence
Rough contact - sounds a little S&M to me....

(OK it's Friday)


Dan whipmekickmecallmeedna Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Ch ...
  Topic: Multiple tapering shell element sections
danbohlen

Replies: 3
Views: 6349

PostForum: XANSYS   Posted: Mon Oct 15, 2012 10:01 am   Subject: [Xansys] Multiple tapering shell element sections
Out of the box here: Have you considered the solid-shell elements? SOLSH190. Might be easier than defining a whole bunch of shell thicknesses


Dan goingbacktomybox Bohlen

Senior Staff Engi ...
  Topic: Substructuring with solid elements in WB
danbohlen

Replies: 4
Views: 6563

PostForum: XANSYS   Posted: Mon Oct 15, 2012 4:54 am   Subject: [Xansys] Substructuring with solid elements in WB
In others words active DOFs on the surface.

-----Original Message-----
From: xansys-bounces@xansys.org Dear experts,

I have a question regarding substructuring with solid elements in Workbench. I wo ...
  Topic: [STRUCT] Semi-elliptical crack modeling 3D, SIF
danbohlen

Replies: 5
Views: 7650

PostForum: XANSYS   Posted: Mon Oct 15, 2012 4:54 am   Subject: [Xansys] Semi-elliptical crack modeling 3D, SIF
You need to just select the nodes on the crack front. It sounds like you are using volumes etc. in Ansys MADPL. Then the crack tip nodes would be on the overlapping lines. Select the lines then nod ...
  Topic: [Xansys] OT (WAS RE: ANSYS QA notice QA2012-01 Transient Ana
danbohlen

Replies: 0
Views: 1410

PostForum: XANSYS   Posted: Fri Oct 12, 2012 10:04 am   Subject: [Xansys] OT (WAS RE: ANSYS QA notice QA2012-01 Transient Ana
Except he had a signature and didn't list himself as a grad student..

-----Original Message-----
From: xansys-bounces@xansys.org My only reply was "What do we do if the two don't agree?"

Y ...
  Topic: OT (WAS RE: [Xansys] ANSYS QA notice QA2012-01 Transient A
danbohlen

Replies: 3
Views: 5131

PostForum: XANSYS   Posted: Fri Oct 12, 2012 9:28 am   Subject: [Xansys] OT (WAS RE: ANSYS QA notice QA2012-01 Transient A
Agreed

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of joshua.hogg
Sent: Friday, October 12, 2012 11:30 AM
To: xansys@xansys.org
Subject: [X ...
  Topic: CE not generated
danbohlen

Replies: 3
Views: 2659

PostForum: XANSYS   Posted: Fri Oct 12, 2012 5:16 am   Subject: [Xansys] CE not generated
Are you adding CE in between load steps/restarts? I've CEMOD'ed them before, but issuing a CE command in the middle of a bunch of load steps might give ansys heartburn



Dan rolaids Bohlen
Senior ...
  Topic: OT (WAS RE: [Xansys] ANSYS QA notice QA2012-01 Transient A
danbohlen

Replies: 3
Views: 5131

PostForum: XANSYS   Posted: Fri Oct 12, 2012 5:13 am   Subject: OT (WAS RE: [Xansys] ANSYS QA notice QA2012-01 Transient A
When I was a design engineer we had a bunch of guys doing impact analysis on some new parts. This was back in 1989 - so it was cutting edge back then. They were spending months on the analysis. Whe ...
  Topic: Tangent modulus
danbohlen

Replies: 8
Views: 29761

PostForum: XANSYS   Posted: Wed Oct 10, 2012 6:24 am   Subject: [Xansys] Tangent modulus
This may help.

http://en.wikipedia.org/wiki/Ramberg-Osgood_relationship



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
( ...
  Topic: [Xansys] R: CP and Boundary on nodes
danbohlen

Replies: 6
Views: 7516

PostForum: XANSYS   Posted: Wed Oct 03, 2012 11:03 am   Subject: [Xansys] R: CP and Boundary on nodes
Chris,

Sounds like you are describing GE management theory here!


Dan backonthechaingang Bohlen

Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Cheste ...
  Topic: [Xansys] Using beams to apply prescribed displacements in a
danbohlen

Replies: 0
Views: 1392

PostForum: XANSYS   Posted: Wed Oct 03, 2012 6:17 am   Subject: [Xansys] Using beams to apply prescribed displacements in a
Beam stresses or shell stresses?

-----Original Message-----
From: xansys-bounces@xansys.org I suspect your high stresses maybe caused by your boundary
conditions. You apply some displacement on the ...
  Topic: [Xansys] Using beams to apply prescribed displacements in a
danbohlen

Replies: 0
Views: 1370

PostForum: XANSYS   Posted: Wed Oct 03, 2012 4:30 am   Subject: [Xansys] Using beams to apply prescribed displacements in a
I would seem you should be able to apply the displacements right to the shell nodes.

I suspect your high stresses maybe caused by your boundary conditions. You apply some displacement on the measur ...
  Topic: [Xansys] R: CP and Boundary on nodes
danbohlen

Replies: 6
Views: 7516

PostForum: XANSYS   Posted: Wed Oct 03, 2012 4:26 am   Subject: [Xansys] R: CP and Boundary on nodes
Because they are imperialist running dogs!

If you want to be more technical you could refer to them as independent and dependent nodes. In older versions of Ansys you could cobble together a complex ...
  Topic: [WB] How define common bolt pretension Workbench
danbohlen

Replies: 4
Views: 7369

PostForum: XANSYS   Posted: Tue Oct 02, 2012 4:57 am   Subject: [Xansys] [WB] How define common bolt pretension Workbench
Before I answer, why would you want to change the bolt clamp a bunch of times? You do set them all to a value before you hit solve. Would you change them afterwards?

You can make the clamp value a ...
  Topic: Structural Optimization with SmartDO and Workbench
danbohlen

Replies: 8
Views: 9419

PostForum: XANSYS   Posted: Fri Sep 28, 2012 10:28 am   Subject: [Xansys] Structural Optimization with SmartDO and Workbench
OK.

So do you have a question? Or is this post just shameless self-promotion?


Dan GEiscurrentlyhavingasaleonlightbulbs Bohlen

Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engine ...
  Topic: Structural Optimization with SmartDO and Workbench
danbohlen

Replies: 8
Views: 9419

PostForum: XANSYS   Posted: Fri Sep 28, 2012 10:10 am   Subject: [Xansys] Structural Optimization with SmartDO and Workbench
GO FOR IT! Better to beg forgiveness than ask permission....

I'll have to admit I'm prejudice against anyone or anything claiming to be optimized. All of life is sub-optimization. Minimize wei ...
  Topic: [Struct SPARSE DIRECT:constraint added]
danbohlen

Replies: 23
Views: 17769

PostForum: XANSYS   Posted: Thu Sep 27, 2012 4:09 am   Subject: [Xansys] [Struct SPARSE DIRECT:constraint added]
You ought to leave the earlier message. Not sure how anyone is going to help you.

Do they have "google" at Federico II university?

http://www.acronymfinder.com/SWAG.html


You are about t ...
  Topic: [Struct SPARSE DIRECT:constraint added]
danbohlen

Replies: 23
Views: 17769

PostForum: XANSYS   Posted: Thu Sep 27, 2012 4:04 am   Subject: [Xansys] [Struct SPARSE DIRECT:constraint added]
Probably, but what if the sections aren't connected properly - that might be the problem.

It just goes to show you, it's always something--if it ain't one thing, it's another.

Good Luck,




Roseann ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Thu Sep 27, 2012 3:58 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
No problem. Just go out and invent something to help us elders.

Better artificial hips or maybe a cool wheelchair....


Dan engineeringthenextgeneration Bohlen

Senior Staff Engineer, Military HP ...
  Topic: [Struct SPARSE DIRECT:constraint added]
danbohlen

Replies: 23
Views: 17769

PostForum: XANSYS   Posted: Wed Sep 26, 2012 11:24 am   Subject: [Xansys] [Struct SPARSE DIRECT:constraint added]
Looking for frequency ~ 0 Hz.......



-----Original Message-----
From: xansys-bounces@xansys.org Excuse me again but How many modes of vibration should be analyzed?

Tomorrow I start with 10 and se ...
  Topic: [Structural] Beam3 to Beam 188 and other element types
danbohlen

Replies: 1
Views: 4119

PostForum: XANSYS   Posted: Wed Sep 26, 2012 11:06 am   Subject: [Xansys] [Structural] Beam3 to Beam 188 and other element ty
For most problems I'd assume keyopt(2) =1 would work. If you have a lot of deformation =0 sounds like it accounts of the section necking down. Can't go wrong with =0 as long as it the job runs.

Whe ...
  Topic: [APDL] How to check for existance of a parameter?
danbohlen

Replies: 3
Views: 5911

PostForum: XANSYS   Posted: Wed Sep 26, 2012 9:24 am   Subject: [Xansys] [APDL] How to check for existance of a parameter?
*SET,duh,1
*get,check,parm,duh,type
*get,check,parm,shit,type



Dan iamsuchthepottymouth Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chest ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Wed Sep 26, 2012 9:21 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
I have rebuilt the geometry in such a way to brick mesh. NO reason to have all the pie slices in the "gear" looking part. Then chunk the "column" footprint through the "gear ...
  Topic: [APDL] How to check for existance of a parameter?
danbohlen

Replies: 3
Views: 5911

PostForum: XANSYS   Posted: Wed Sep 26, 2012 9:14 am   Subject: [Xansys] [APDL] How to check for existance of a parameter?
I think this will do it....

*GET, Par, PARM, Name, Item1, IT1NUM, Item2, IT2NUM
Item1
IT1NUM
Description
TYPE

Parameter type: 0 = scalar, 1 = array, 2 = table, 3 = character scalar, 4 = character a ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Wed Sep 26, 2012 9:10 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
Yes, I did it. You needed to change your mindset about chunking. The below will need some cleaning up, or starting from scratch, but the approach will allow you to map mesh.

S 1
/COM,ANSYS RE ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Wed Sep 26, 2012 8:04 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
OK. You can't map mesh the wedges near the phallus. Also the base of the dork comes very close to the divide lines of the wedges.





-----Original Message-----
From: xansys-bounces@xans ...
  Topic: [Struct SPARSE DIRECT:constraint added]
danbohlen

Replies: 23
Views: 17769

PostForum: XANSYS   Posted: Wed Sep 26, 2012 7:43 am   Subject: [Xansys] [Struct SPARSE DIRECT:constraint added]
Hmm modal is a good way to ferret out an unconstrained problem. Maybe send the error you get with that....



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviat ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Wed Sep 26, 2012 7:38 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
Are they complex volumes? You either have to chunk into cubes or areas that you can sweep mesh. Or consider tets.



Dan yoursatisficationguaranteedordoubleurmoneyback Bohlen

Senior Staff Enginee ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Wed Sep 26, 2012 7:25 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
I don't recall the question. If you can't glue the geometry there are a number of ways to "hook up" the pieces. CINT or surface to surface gaps bonded always or MPC options come to mind.

...
  Topic: [Ansys APDL]Error message
danbohlen

Replies: 19
Views: 19386

PostForum: XANSYS   Posted: Fri Sep 21, 2012 9:45 am   Subject: [Xansys] [Ansys APDL]Error message
Use Ansys Classic, chunk the model, and tell your prof to stick it.



Dan wherethesundon'tshine Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West ...
  Topic: [Xansys] WAY OT
danbohlen

Replies: 17
Views: 20609

PostForum: XANSYS   Posted: Thu Sep 20, 2012 8:05 am   Subject: [Xansys] WAY OT
The Swedish gov't probably has its act together. Anytime one talks about a gov't run system here folks think about last time they went to get a driver's license at the BMV...(and that's usually State ...
  Topic: [STRUCT] [OT] Stress Distribution-Combined Shear / Bending
danbohlen

Replies: 10
Views: 10980

PostForum: XANSYS   Posted: Thu Sep 20, 2012 7:03 am   Subject: [Xansys] [STRUCT] [OT] Stress Distribution-Combined Shear /
So Ansys matches some experimental results, but not a handbook calc? Perhaps the handbook calc is simplified? Not applicable for short beams? Does your Ansys model show a distribution of shear str ...
  Topic: WAY WAY OT
danbohlen

Replies: 0
Views: 1314

PostForum: XANSYS   Posted: Thu Sep 20, 2012 4:49 am   Subject: WAY WAY OT
I heard an interesting story on NPR months ago. They traveled the world sampling health care systems. Essentially, in each system someone go the short end of the stick. For instance, in Japan, the ...
  Topic: [Xansys] WAY OT
danbohlen

Replies: 17
Views: 20609

PostForum: XANSYS   Posted: Wed Sep 19, 2012 12:43 pm   Subject: [Xansys] WAY OT
NO faith in Obamacare? :-)


-----Original Message-----
From: xansys-bounces@xansys.org On Sep 19, 2012, at 1:10 PM, Chuck Ritter wrote:


And then I could get that sweet, sweet Medicare... /sarcasm
...
  Topic: WAY OT
danbohlen

Replies: 0
Views: 1499

PostForum: XANSYS   Posted: Wed Sep 19, 2012 9:33 am   Subject: WAY OT
True dat. Per Social Security I'm to work until I'm 67. Using that "end date" I'm about 2/3 done. Based on how things are going - I'll more likely be working until they haul my dead car ...
  Topic: [Xansys] Large model failed run
danbohlen

Replies: 22
Views: 25400

PostForum: XANSYS   Posted: Tue Sep 18, 2012 9:59 am   Subject: [Xansys] Large model failed run
Hope GE isn't the customer! :-D (I know you can't say either way).


Dan thecustomerisalwaysrightevenwhentheyaren't Bohlen

Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 ...
  Topic: [Xansys] Large model failed run
danbohlen

Replies: 22
Views: 25400

PostForum: XANSYS   Posted: Tue Sep 18, 2012 9:58 am   Subject: [Xansys] Large model failed run
Where they connect into the bricks and tets would have to be 3 DOFs - so that ought to work.



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West C ...
  Topic: [Xansys] Large model failed run
danbohlen

Replies: 22
Views: 25400

PostForum: XANSYS   Posted: Tue Sep 18, 2012 7:28 am   Subject: [Xansys] Large model failed run
Yep, I believe that internally Ansys lugs around 6 DOF for ALL nodes - even for bricks. So anyway that you can get rid of the beams/shells, whatever - you might get your memory needs cut in half.

Th ...
  Topic: [Xansys] Large model failed run
danbohlen

Replies: 22
Views: 25400

PostForum: XANSYS   Posted: Tue Sep 18, 2012 6:01 am   Subject: [Xansys] Large model failed run
Check your DOFs and make sure it this the 3 you expect. If you have some shell element type defined I think Ansys will lug along 6 DOF even if you aren't using them.

If running sparse "out of c ...
  Topic: [DM] Divide Faces by Plane
danbohlen

Replies: 9
Views: 13048

PostForum: XANSYS   Posted: Wed Sep 05, 2012 11:48 am   Subject: [Xansys] [DM] Divide Faces by Plane
GE's IT Nazis are better than you think - I couldn't get to the below....

Resistance is futile...


Dan theGEborg Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Avia ...
  Topic: [APDL]Create a mesh where KP == NODES
danbohlen

Replies: 32
Views: 28459

PostForum: XANSYS   Posted: Wed Sep 05, 2012 6:17 am   Subject: [Xansys] [APDL]Create a mesh where KP == NODES
I've done a 1/2 a career in FEA without ever using hardpoints. There is another easy way to get the job done. Who teaches "Ansys" in college? - it should be generic FEA concepts.


Dan Boh ...
  Topic: [APDL]Create a mesh where KP == NODES
danbohlen

Replies: 32
Views: 28459

PostForum: XANSYS   Posted: Wed Sep 05, 2012 6:06 am   Subject: [Xansys] [APDL]Create a mesh where KP == NODES
What the? Seems like he's a hard HEAD for hard POINTs. There is no particular FEA concept of hard points. Seems pretty silly to me.


Dan timetofindanewthesisadvisor Bohlen
Senior Staff Engineer ...
  Topic: [APDL]Create a mesh where KP == NODES
danbohlen

Replies: 32
Views: 28459

PostForum: XANSYS   Posted: Tue Sep 04, 2012 12:23 pm   Subject: [Xansys] [APDL]Create a mesh where KP == NODES
Chris,

It's time to get rid of your AOL account and get rid of dial up.

Broadband is where it is at baby!!! :-D


Dan itisaTBworldnow Bohlen
Senior Staff Engineer, Military HPT Analysis
GE A ...
  Topic: [APDL]Create a mesh where KP == NODES
danbohlen

Replies: 32
Views: 28459

PostForum: XANSYS   Posted: Tue Sep 04, 2012 4:33 am   Subject: [Xansys] [APDL]Create a mesh where KP == NODES
My company's firewall won't let me through to see the model, but if I recall I thought you mentioned it was a 2D problem. That ought to be pretty easy to chunk (divide) and mesh.

One question for yo ...
  Topic: [Xansys] axi-symmetic
danbohlen

Replies: 1
Views: 2143

PostForum: XANSYS   Posted: Mon Sep 03, 2012 4:21 am   Subject: [Xansys] axi-symmetic
Do a search in help and look for link to verification problems. There will be annotated examples and input files to give the elements a test drive.



Dan yourmileagecouldvary Bohlen
Senior Staff E ...
  Topic: Helical threads
danbohlen

Replies: 0
Views: 1266

PostForum: XANSYS   Posted: Wed Aug 29, 2012 9:07 am   Subject: Helical threads
Hi Folks,

Some one here asked me if there was a very quick way to generate the geometry/mesh for a 360 degree brick element model with helical threads.



Dan Bohlen
Senior Staff Engineer, Mi ...
  Topic: [Xansys] How to run a Simple random vibration by using PSD R
danbohlen

Replies: 16
Views: 16874

PostForum: XANSYS   Posted: Wed Aug 29, 2012 4:10 am   Subject: [Xansys] How to run a Simple random vibration by using PSD R
You might want to post some of you output file....


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2 ...
  Topic: [Xansys] [STRUC] Nonlinear analysis with Axisymmetric elemen
danbohlen

Replies: 2
Views: 4953

PostForum: XANSYS   Posted: Mon Aug 27, 2012 4:22 am   Subject: [Xansys] [STRUC] Nonlinear analysis with Axisymmetric elemen
Alternative idea - just mesh the thing in 3D with SOLID45 (or their newer cousins). Unless you are running a large parametric study - I can't believe there would be advantage to using the 83's.


Da ...
  Topic: [Xansys] Hardware, september 2011
danbohlen

Replies: 13
Views: 14548

PostForum: XANSYS   Posted: Fri Aug 24, 2012 5:09 am   Subject: [Xansys] Hardware, september 2011
Hi Li,

Are you talking about logging onto 1 of the machines and launching 3 jobs on others (like rlogin) or taking 1 big job and spreading it over four machines worth of memory and cpus?


Dan Bohlen ...
  Topic: [STRUC] Giberson one component beam
danbohlen

Replies: 7
Views: 9739

PostForum: XANSYS   Posted: Wed Aug 22, 2012 4:42 am   Subject: [Xansys] [STRUC] Giberson one component beam
Maybe no one knows what RCC or a "Giberson beam" is.

Maybe start with your thesis advisor (you know the guy who works for the school you pay money to) and come back when it's boiled down to ...
  Topic: [Xansys] possible v13 bug? {struc}
danbohlen

Replies: 4
Views: 3936

PostForum: XANSYS   Posted: Fri Aug 10, 2012 12:49 pm   Subject: [Xansys] possible v13 bug? {struc}
We use to have some in house software that got updated often and would often give different answers. When someone got a result they didn't like - I would make the smart@$$ suggestion that they wait f ...
  Topic: [Xansys] LINK 180 GUI bug
danbohlen

Replies: 2
Views: 3528

PostForum: XANSYS   Posted: Fri Aug 10, 2012 12:30 pm   Subject: [Xansys] LINK 180 GUI bug
OK fixed in V14.....



-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of Bohlen, Dan (GE Aviation, US)
Sent: Friday, August 10, 2012 2:11 PM
T ...
  Topic: LINK 180 GUI bug
danbohlen

Replies: 0
Views: 1484

PostForum: XANSYS   Posted: Fri Aug 10, 2012 11:10 am   Subject: LINK 180 GUI bug
Just passing this along to Ansys Inc.

On the GUI for this element it does not have a box to enter the real constant that controls the tension/compression capability of the part. You can do it by co ...
  Topic: Progressive collapse analysis: sudden column removal[APDL]
danbohlen

Replies: 3
Views: 5311

PostForum: XANSYS   Posted: Thu Aug 09, 2012 7:31 am   Subject: [Xansys] Uniaxial Stress-Strain of epoxy
If you search the archives I'm sure you'll see a number of posts on how to handle this.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester ...
  Topic: Controlled Displacement
danbohlen

Replies: 4
Views: 3940

PostForum: XANSYS   Posted: Wed Aug 08, 2012 4:54 am   Subject: [Xansys] Controlled Displacement
I'm not sure about an easier method.....

Sounds like a contact problem to me. With your logic below what happens is the displacement is greater than 4mm? Sounds like a spherical contact zone. What ...
  Topic: [Xansys] Harmonic index and nodal diameter
danbohlen

Replies: 0
Views: 3018

PostForum: XANSYS   Posted: Mon Aug 06, 2012 5:05 am   Subject: [Xansys] Harmonic index and nodal diameter
Google is a great place for generic non-Ansys specific engineering questions. I Googled

https://www.google.com/#hl=en&sa=X&ei=hrEfUMIJhY3IAbXVgJgB&ved=0CF8QBSgA&q=Harmonic+index+and ...
  Topic: Shrink fit due to cooling of the outer cylinder
danbohlen

Replies: 1
Views: 2406

PostForum: XANSYS   Posted: Mon Aug 06, 2012 4:43 am   Subject: [Xansys] Shrink fit due to cooling of the outer cylinder
A few ideas:

1) Don't use workbench
2) State what the engineering purpose of this analysis - might help.
3) I don't think this is really a multiphysics problem. I'd put the two cylinders in contact, ...
  Topic: How to Disable Pyramids in Workbench
danbohlen

Replies: 13
Views: 17686

PostForum: XANSYS   Posted: Fri Aug 03, 2012 5:00 am   Subject: [Xansys] How to Disable Pyramids in Workbench
OK, gotta ask - why exporting it?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floor desk #13 ...
  Topic: How to Disable Pyramids in Workbench
danbohlen

Replies: 13
Views: 17686

PostForum: XANSYS   Posted: Fri Aug 03, 2012 4:36 am   Subject: [Xansys] How to Disable Pyramids in Workbench
I've never used Workclench, but in MAPDL the program only generates pyramids if bricks have already been created. So maybe don't have any bricks meshed before you make the tets. IF you do have brick ...
  Topic: Effect of Young's Modulus (E) in Linear Analysis
danbohlen

Replies: 35
Views: 33139

PostForum: XANSYS   Posted: Tue Jul 31, 2012 12:25 pm   Subject: [Xansys] Effect of Young's Modulus (E) in Linear Analysis
I don't think I had enough math background when I took it in Grad school! :-)


Dan mybrainhurts Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Ch ...
  Topic: Effect of Young's Modulus (E) in Linear Analysis
danbohlen

Replies: 35
Views: 33139

PostForum: XANSYS   Posted: Tue Jul 31, 2012 12:24 pm   Subject: [Xansys] Effect of Young's Modulus (E) in Linear Analysis
He's probably rolling then.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floor desk #135)
M/ ...
  Topic: Effect of Young's Modulus (E) in Linear Analysis
danbohlen

Replies: 35
Views: 33139

PostForum: XANSYS   Posted: Tue Jul 31, 2012 11:47 am   Subject: [Xansys] Effect of Young's Modulus (E) in Linear Analysis
It does strike me as strange to be doing FEA when it appears undergraduate level solid mechanics hasn't been covered/comprehended. I did have a buddy who went to CSU and said in undergrad they skipp ...
  Topic: Avoid nonlinear contact in modal analysis
danbohlen

Replies: 9
Views: 12442

PostForum: XANSYS   Posted: Mon Jul 30, 2012 8:04 am   Subject: [Xansys] Avoid nonlinear contact in modal analysis
AH, this is much clearer.

Well for modal analysis you can't have contact. You assume the contact is either open or closed. IN your case you want to lower frequencies you would want to assume they ...
  Topic: Avoid nonlinear contact in modal analysis
danbohlen

Replies: 9
Views: 12442

PostForum: XANSYS   Posted: Mon Jul 30, 2012 6:29 am   Subject: [Xansys] Avoid nonlinear contact in modal analysis
I think the best approach is to explain the problem you are trying to solve first, then maybe folks can help you.

For instance - are you trying to see the effect of damping on your system? You would ...
  Topic: [MAPDL]
danbohlen

Replies: 4
Views: 2698

PostForum: XANSYS   Posted: Mon Jul 30, 2012 3:48 am   Subject: [Xansys] [MAPDL]
Time to repost this again

www.idac.co.uk/services/downloads/consistent.pdf


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069 ...
  Topic: [Xansys] [STRUCT] Define a distributed load on a cylindral s
danbohlen

Replies: 5
Views: 6538

PostForum: XANSYS   Posted: Wed Jul 25, 2012 9:39 am   Subject: [Xansys] [STRUCT] Define a distributed load on a cylindral s
Yep, I co-op'ed during undergrad. I'd HIGHLY suggest picky an undergraduate program that had a cooperative education program.



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft ...
  Topic: [Xansys] [STRUCT] Define a distributed load on a cylindral s
danbohlen

Replies: 5
Views: 6538

PostForum: XANSYS   Posted: Wed Jul 25, 2012 4:24 am   Subject: [Xansys] [STRUCT] Define a distributed load on a cylindral s
Hi Chris,

From your reference below I am guessing you were in engineering college about the same time as my older brother (1969-1974). A draft deferment was quite a motivator in its day!


Dan toda ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Mon Jul 16, 2012 9:52 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
Yep, thanks for the input stream - I can see what you are doing. You can't just "glue" geometry together in Ansys classic. Volumes need to share an identical area to have a shared mesh. Y ...
  Topic: [Xansys] STRUC : joining two volumes with different meshing
danbohlen

Replies: 27
Views: 23136

PostForum: XANSYS   Posted: Mon Jul 16, 2012 9:12 am   Subject: [Xansys] STRUC : joining two volumes with different meshing
I haven't read this entire thread, but you can hook up dissimilar meshes a few ways:

- Surface to surface gaps

- CEINT command.

Of course if you are interested in stresses near these regions you'll ...
  Topic: Modifying table array elements
danbohlen

Replies: 6
Views: 6156

PostForum: XANSYS   Posted: Fri Jul 13, 2012 12:08 pm   Subject: [Xansys] Modifying table array elements
This may help to debug it - printing out the values.

*dim,test3d,table,3,3,3,X,Y,Z
*do,i,0,2
/gopr
*do,j,0,2
/gopr
*do,k,0,2
/gopr
kk=k
jj=j
ii=i
test3d(0,0,i+1) = i-1
test3d(0,j+1,i+1) = j-1 ...
  Topic: Restrictions in element lengths
danbohlen

Replies: 5
Views: 7125

PostForum: XANSYS   Posted: Fri Jul 13, 2012 4:39 am   Subject: [Xansys] Restrictions in element lengths
What are these guys analyzing? The Death Star? :-)


-----Original Message-----
From: xansys-bounces@xansys.org Search the knowledge base of the Ansys support page!

At least the DesignModeler is li ...
  Topic: OT (RE: [Xansys] [WB Mechanical] Rotorhub stress analysis BC
danbohlen

Replies: 0
Views: 1452

PostForum: XANSYS   Posted: Wed Jul 11, 2012 11:17 am   Subject: OT (RE: [Xansys] [WB Mechanical] Rotorhub stress analysis BC
Speaking of knowing your whiney customers... We had a guy from Ansys Inc. who is our "customer liaison" or something like that. He came here to got beat up for a couple of days. In one se ...
  Topic: OT (was RE: [Xansys] [WB Mechanical] Rotorhub stress analysi
danbohlen

Replies: 0
Views: 1524

PostForum: XANSYS   Posted: Wed Jul 11, 2012 10:57 am   Subject: OT (was RE: [Xansys] [WB Mechanical] Rotorhub stress analysi
Just another "whiney customer" as described in Dilbert...

-----Original Message-----
From: xansys-bounces@xansys.org "Why not just state "Your damn model isn't nailed down. Find s ...
  Topic: [WB Mechanical] Rotorhub stress analysis BC enquiry
danbohlen

Replies: 24
Views: 24997

PostForum: XANSYS   Posted: Wed Jul 11, 2012 10:48 am   Subject: [Xansys] [WB Mechanical] Rotorhub stress analysis BC enquiry
MARC - now there's a blast from the past. Had to Google that one. Looks like they got bought up by MSC.



-----Original Message-----
From: xansys-bounces@xansys.org "Why not just state "Y ...
  Topic: [WB Mechanical] Rotorhub stress analysis BC enquiry
danbohlen

Replies: 24
Views: 24997

PostForum: XANSYS   Posted: Wed Jul 11, 2012 8:03 am   Subject: [Xansys] [WB Mechanical] Rotorhub stress analysis BC enquiry
Actually the latest and greatest elements are the 182 series. If you use those you are on your own. Just like the surface to surface gaps there are buttons and settings us non-PhD mortals can't answ ...
  Topic: OT (was RE: [Xansys] [WB Mechanical] Rotorhub stress analys
danbohlen

Replies: 0
Views: 2490

PostForum: XANSYS   Posted: Wed Jul 11, 2012 6:44 am   Subject: OT (was RE: [Xansys] [WB Mechanical] Rotorhub stress analys
Amen. When I was on my way out as listmiester I had proposed that. A XANSYS-PRO as a separate list. I also put out the idea of charging a small fee. (Not for legacy members...) I figured that woul ...
  Topic: [WB Mechanical] Rotorhub stress analysis BC enquiry
danbohlen

Replies: 24
Views: 24997

PostForum: XANSYS   Posted: Wed Jul 11, 2012 6:34 am   Subject: [Xansys] [WB Mechanical] Rotorhub stress analysis BC enquiry
Problem is - people don't know what they don't know....

-----Original Message-----
From: xansys-bounces@xansys.org Why would you constraint the ID radially?


Hello again Dan. Thanks for your respons ...
  Topic: [WB Mechanical] Rotorhub stress analysis BC enquiry
danbohlen

Replies: 24
Views: 24997

PostForum: XANSYS   Posted: Wed Jul 11, 2012 5:12 am   Subject: [Xansys] [WB Mechanical] Rotorhub stress analysis BC enquiry
Why not model the shaft if you are so concerned about its effect on the problem? Do the shaft and disk become disconnected? Not a very useful design.

Here's some simple and direct answers:

Model # ...
  Topic: [Xansys] [APDL] Caching all temporary files
danbohlen

Replies: 12
Views: 13841

PostForum: XANSYS   Posted: Tue Jul 10, 2012 12:28 pm   Subject: [Xansys] [APDL] Caching all temporary files
The job needs 4 TB of memory????


Dan lostintranslation Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" ...
  Topic: [MAPDL] Area Fillet
danbohlen

Replies: 5
Views: 5305

PostForum: XANSYS   Posted: Tue Jul 10, 2012 12:14 pm   Subject: [Xansys] [MAPDL] Area Fillet
I don't think you can. Read my previous post on some ideas to work around the issue.



Dan recentlyknighted Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviatio ...
  Topic: [WB Mechanical] Rotorhub stress analysis BC enquiry
danbohlen

Replies: 24
Views: 24997

PostForum: XANSYS   Posted: Tue Jul 10, 2012 9:38 am   Subject: [Xansys] [WB Mechanical] Rotorhub stress analysis BC enquiry
Why would you constraint the ID radially?



-----Original Message-----
From: xansys-bounces@xansys.org Well if you constrain the ID to zero deflection - I imagine the greatest will be at the OD.


Hi ...
  Topic: [Xansys] [APDL] Caching all temporary files
danbohlen

Replies: 12
Views: 13841

PostForum: XANSYS   Posted: Tue Jul 10, 2012 9:37 am   Subject: [Xansys] [APDL] Caching all temporary files
If it is 13 you shouldn't need the BCSOPT command. The output says the solver wants 20GB if memory and you have 32GB? 32GB of *RAM*?

If you still can't get there maybe try the PCG solver....

B ...
  Topic: [Xansys] [APDL] Caching all temporary files
danbohlen

Replies: 1
Views: 1550

PostForum: XANSYS   Posted: Tue Jul 10, 2012 9:12 am   Subject: [Xansys] [APDL] Caching all temporary files
What version of Ansys you using? In 13 and up Ansys will allocate more memory for the solver (you using SPARSE?).

In earlier versions you need to use the BCSOPTION command - a well kept secret.... ...
  Topic: [MAPDL] Area Fillet
danbohlen

Replies: 5
Views: 5305

PostForum: XANSYS   Posted: Tue Jul 10, 2012 9:10 am   Subject: [Xansys] [MAPDL] Area Fillet
I doubt you can fillet two areas that are part of a volume. Delete the volume and the adjoining areas and try it. Booleans in Ansys are problematic. Maybe better to fillet in another package or do ...
  Topic: [WB Mechanical] Rotorhub stress analysis BC enquiry
danbohlen

Replies: 24
Views: 24997

PostForum: XANSYS   Posted: Tue Jul 10, 2012 9:08 am   Subject: [Xansys] [WB Mechanical] Rotorhub stress analysis BC enquiry
Well if you constrain the ID to zero deflection - I imagine the greatest will be at the OD.

Consider using axisymmetric elements for this? PLANE42?


Dan Bohlen
Senior Staff Engineer, Military HPT ...
  Topic: [WB Mechanical] Rotorhub stress analysis BC enquiry
danbohlen

Replies: 24
Views: 24997

PostForum: XANSYS   Posted: Tue Jul 10, 2012 4:30 am   Subject: [Xansys] [WB Mechanical] Rotorhub stress analysis BC enquiry
Hi Li,

A couple of questions - if the ID shaft is "not included in the model for this exercise" why is it mentioned?

You might mention what element type or DOF you are using - 2D or 3D an ...
  Topic: Meaning of Ratio
danbohlen

Replies: 2
Views: 8571

PostForum: XANSYS   Posted: Mon Jul 09, 2012 5:53 am   Subject: [Xansys] Meaning of Ratio
Isn't it the PCG convergence criteria? The PCG is an iterative solver and a tolerance on it must be set. The limit 1e-4 is on the large side. What precise quantity is be calculated? That is listed ...
  Topic: Composite beam modelling in Ansys Mechanical (APDL)
danbohlen

Replies: 5
Views: 8820

PostForum: XANSYS   Posted: Mon Jul 09, 2012 5:15 am   Subject: [Xansys] Composite beam modelling in Ansys Mechanical (APDL)
Coupling ought to work.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floor desk #135)
M/D W ...
  Topic: get number of elements of specific types
danbohlen

Replies: 9
Views: 11174

PostForum: XANSYS   Posted: Mon Jul 09, 2012 4:37 am   Subject: [Xansys] get number of elements of specific types
Ah indeed, it is possible to be spoon fed on this list....


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B ...
  Topic: get number of elements of specific types
danbohlen

Replies: 9
Views: 11174

PostForum: XANSYS   Posted: Sun Jul 08, 2012 8:15 am   Subject: [Xansys] get number of elements of specific types
Look at *GET command.

Also you can select them and in the output window it tells you how many elements were selected.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
...
  Topic: Writing load step results using command objects in WB
danbohlen

Replies: 8
Views: 8099

PostForum: XANSYS   Posted: Thu Jul 05, 2012 7:36 am   Subject: [Xansys] Writing load step results using command objects in
You might want to include the full thread here. I don't' recall the initial question or the response you are referring to.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engi ...
  Topic: [Xansys] Transient Thermal Solution in Workbench 13 (Therm)
danbohlen

Replies: 3
Views: 7081

PostForum: XANSYS   Posted: Fri Jun 29, 2012 5:41 am   Subject: [Xansys] Transient Thermal Solution in Workbench 13 (Therm)
Yep, don't write out so many solutions! :-)

You can do this a couple of ways. Do you NEED all those results? You could tell Ansys to write out every 10th.

Other than that - this is one time the ...
  Topic: [AUTODYN] finding "Theory reference manual"
danbohlen

Replies: 4
Views: 7653

PostForum: XANSYS   Posted: Fri Jun 29, 2012 5:36 am   Subject: [Xansys] [AUTODYN] finding "Theory reference manual&quo
I googled " autodyn theory manual" and got some hits.

This one looks promising

http://www.joeydavila.com/subject/autodyn++interactive+non+linear+dynamic+analysis+software+theory+manual/
...
  Topic: [Xansys] Surface stress extraction in Ansys
danbohlen

Replies: 4
Views: 10138

PostForum: XANSYS   Posted: Thu Jun 28, 2012 6:20 am   Subject: [Xansys] Surface stress extraction in Ansys
Yep SOLID92/95 for tets and pyramids

-----Original Message-----
From: xansys-bounces@xansys.org You can use "old school" SOLID45. It has surface stress capability built in.

Providing you ...
  Topic: [Xansys] Surface stress extraction in Ansys
danbohlen

Replies: 4
Views: 10138

PostForum: XANSYS   Posted: Thu Jun 28, 2012 4:59 am   Subject: [Xansys] Surface stress extraction in Ansys
You can use "old school" SOLID45. It has surface stress capability built in.


Dan SOLID45forever18xseriesnever! Bohlen

Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engine ...
  Topic: Beam188 - New techonology element
danbohlen

Replies: 12
Views: 18007

PostForum: XANSYS   Posted: Tue Jun 26, 2012 8:35 am   Subject: [Xansys] Beam188 - New techonology element
Cool. (we don't have 14 installed here yet...)

Dan

-----Original Message-----
From: xansys-bounces@xansys.org From recent events Ansys kills an element slowly - weaning us old farts off them slowly ...
  Topic: Beam188 - New techonology element
danbohlen

Replies: 12
Views: 18007

PostForum: XANSYS   Posted: Tue Jun 26, 2012 8:03 am   Subject: [Xansys] Beam188 - New techonology element
I suspect you'll graduate before then.

From recent events Ansys kills an element slowly - weaning us old farts off them slowly. First they remove the help and documentation of the element. So if ...
  Topic: Time Step -determination
danbohlen

Replies: 10
Views: 13849

PostForum: XANSYS   Posted: Mon Jun 25, 2012 9:53 am   Subject: [Xansys] Time Step -determination
OK, I don't do transient thermal analysis, but I'll take a wild guess. Keep reducing the step size until you get the same answer for 2 runs.....

In the spirit of simplified test cases maybe run a s ...
  Topic: Time Step -determination
danbohlen

Replies: 10
Views: 13849

PostForum: XANSYS   Posted: Mon Jun 25, 2012 3:39 am   Subject: [Xansys] Time Step -determination
I assume the temperatures you are getting are different - or is it the times at which Ansys rights out the results differing.

Are you trying to compare results at the final time or intermediate?


Da ...
  Topic: [Xansys] convergence study
danbohlen

Replies: 6
Views: 6148

PostForum: XANSYS   Posted: Wed Jun 20, 2012 12:57 pm   Subject: [Xansys] convergence study
So it's a nonlinear material?

Hmmm well the stress might "converge" because you are past the knee in the stress/strain curve at the fixed end , but the displacements go up as you refine th ...
  Topic: [Xansys] convergence study
danbohlen

Replies: 6
Views: 6148

PostForum: XANSYS   Posted: Wed Jun 20, 2012 12:45 pm   Subject: [Xansys] convergence study
SMA= ??

You talking tip deflection? I assume cantilevered beam? Large or small deflection (NLGEOM) settting?


Dan OKyouwerexpectinganswersnotquestions Bohlen

Senior Staff Engineer, Military HPT ...
  Topic: [Struct] copy mesh on area
danbohlen

Replies: 7
Views: 6451

PostForum: XANSYS   Posted: Wed Jun 20, 2012 7:06 am   Subject: [Xansys] [Struct] copy mesh on area
Yep, this looks like the new-fangled way to do what I described....

-----Original Message-----
From: xansys-bounces@xansys.org For my work for the university I must mesh two areas in the same way.
In ...
  Topic: [Struct] copy mesh on area
danbohlen

Replies: 7
Views: 6451

PostForum: XANSYS   Posted: Wed Jun 20, 2012 7:03 am   Subject: [Xansys] [Struct] copy mesh on area
Old school - I love it!


Dan gimmethatoldtimeAnsys Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd f ...
  Topic: [Struct] copy mesh on area
danbohlen

Replies: 7
Views: 6451

PostForum: XANSYS   Posted: Wed Jun 20, 2012 6:14 am   Subject: [Xansys] [Struct] copy mesh on area
Workbench or MAPDL?

If you need to have an identical mesh between two areas you can accomplish this by meshing one area, copying the area on top of the second area that must match it, and do a NUMM,K ...
  Topic: [Xansys] Ansys 13 bug? NUMMERG,NODE
danbohlen

Replies: 7
Views: 10637

PostForum: XANSYS   Posted: Mon Jun 18, 2012 12:15 pm   Subject: [Xansys] Ansys 13 bug? NUMMERG,NODE
The scary part is this. No one would have any reason to play around with that bit of code. No graphics enhancements in stone-age MAPLD as far as I know.

So if THESE things that USED to work are b ...
  Topic: [Xansys] [THERM] Droplet solidification
danbohlen

Replies: 1
Views: 3360

PostForum: XANSYS   Posted: Fri Jun 15, 2012 12:32 pm   Subject: [Xansys] [THERM] Droplet solidification
This is sweet. Google "consistent units" and this link comes up as #2

http://www.idac.co.uk/services/downloads/consistent.pdf

I'm no thermal guy, but there are some Ansys commands concern ...
  Topic: Ansys 13 bug? NUMMERG,NODE
danbohlen

Replies: 0
Views: 1193

PostForum: XANSYS   Posted: Thu Jun 14, 2012 8:26 am   Subject: Ansys 13 bug? NUMMERG,NODE
Hi All,

Heard this form someone else. They did the nummerge and she claims it merged unselected nodes. Anyone else seen this?

Dan rumorcontrol Bohlen
Senior Staff Engineer, Military HPT Analy ...
  Topic: Workbench Mechanical Mesh
danbohlen

Replies: 11
Views: 11706

PostForum: XANSYS   Posted: Wed Jun 13, 2012 9:30 am   Subject: [Xansys] Workbench Mechanical Mesh
Fix the manual? Ha-ha good one! I bet "EMID" doesn't even exist in workbench and those poor Neanderthals using MAPDL ought to go extinct any time now.....


Dan hopeicanelvevolvetocro-mag ...
  Topic: Workbench Mechanical Mesh
danbohlen

Replies: 11
Views: 11706

PostForum: XANSYS   Posted: Wed Jun 13, 2012 6:21 am   Subject: [Xansys] Workbench Mechanical Mesh
Pssst David - is the EMID command.....



Dan passingnotesinclass Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod &quo ...
  Topic: [Struct] Fail to mesh area which contains hard points
danbohlen

Replies: 27
Views: 20259

PostForum: XANSYS   Posted: Thu Jun 07, 2012 7:52 am   Subject: [Xansys] [Struct] Fail to mesh area which contains hard poin
Here's some help then - dump the "hard points"!

What are they, what purpose do they serve?

Remesh and put them back in later. Would putting keypoints in the same spot allow you to do what ...
  Topic: [Struct] Fail to mesh area which contains hard points
danbohlen

Replies: 27
Views: 20259

PostForum: XANSYS   Posted: Thu Jun 07, 2012 4:52 am   Subject: [Xansys] [Struct] Fail to mesh area which contains hard poin
Who are you?


Dan justquoting"The Who" Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd flo ...
  Topic: Where is the reaction moment distributed using cerig?
danbohlen

Replies: 26
Views: 18885

PostForum: XANSYS   Posted: Wed Jun 06, 2012 12:09 pm   Subject: [Xansys] Predictor setting for contact solution
Yep, drive a stake through the heart of solcon. There are those who suspect it does more stuff "for" you than just the individual settings listed...

We used to turn it on and reset some se ...
  Topic: Where is the reaction moment distributed using cerig?
danbohlen

Replies: 26
Views: 18885

PostForum: XANSYS   Posted: Wed Jun 06, 2012 11:35 am   Subject: [Xansys] Predictor setting for contact solution
Issuing

PRED,OFF,,OFF

Right before SOLVE doesn't do it?

If not, maybe have to be sure SOLCON is turned off.


Dan rundammitrun Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft En ...
  Topic: Where is the reaction moment distributed using cerig?
danbohlen

Replies: 26
Views: 18885

PostForum: XANSYS   Posted: Wed Jun 06, 2012 11:31 am   Subject: [Xansys] Predictor setting for contact solution
I've heard existing .dbs from early versions (11 and earlier) have run into the same thing. The original .db had it off, but it gets turned on during the solve (I guess it a new default for SOLCON?) ...
  Topic: [Xansys] improving mesh quality
danbohlen

Replies: 4
Views: 5042

PostForum: XANSYS   Posted: Tue Jun 05, 2012 11:48 am   Subject: [Xansys] improving mesh quality
Isn't there a TIMP command too?

-----Original Message-----
From: xansys-bounces@xansys.org Hello Martin,

Thank you for your help, this might work. However, my mesh is imported
via an .iges file and ...
  Topic: [Xansys] Update geometry using Macro
danbohlen

Replies: 4
Views: 4926

PostForum: XANSYS   Posted: Fri Jun 01, 2012 7:08 am   Subject: [Xansys] Update geometry using Macro
I see no one has replied yet - so maybe some half-baked advice will be better than none. Maybe an expert will chime in....

I couple of things come to mind. First off you might want to describe in m ...
  Topic: [Xansys] [STRUC] MPC contact with No Separation (always) not
danbohlen

Replies: 12
Views: 18452

PostForum: XANSYS   Posted: Wed May 30, 2012 7:18 am   Subject: [Xansys] [STRUC] MPC contact with No Separation (always) not
I just took a course on the latest Ansys stuff and the MPC contact (especially the bonded always feature) was promoted.

:-(

The CE's are fine - except if you have large displacements.


Dan Bohlen ...
  Topic: [Xansys] Command for connecting line in Ansys Macro
danbohlen

Replies: 4
Views: 5531

PostForum: XANSYS   Posted: Wed May 30, 2012 4:58 am   Subject: [Xansys] Command for connecting line in Ansys Macro
What was the error or output?

You could post a a replay of this operation and others could try it. K commands to recreate the keypoints and then the operation.


Dan Bohlen
Senior Staff Engineer, ...
  Topic: [Xansys] Ansys ported to Apple
danbohlen

Replies: 13
Views: 18231

PostForum: XANSYS   Posted: Thu May 17, 2012 12:12 pm   Subject: [Xansys] Ansys ported to Apple
GSP? I don't travel much.


Dan acubeisacardboardboxwithfuzzywalls Bohlen

Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod &q ...
  Topic: [Xansys] Ansys ported to Apple
danbohlen

Replies: 13
Views: 18231

PostForum: XANSYS   Posted: Thu May 17, 2012 10:02 am   Subject: [Xansys] Ansys ported to Apple
Is LINUX an option for you???

-----Original Message-----
From: xansys-bounces@xansys.org Hi All,



I checked the forum archives and couldn't find any mention of the Apple.
Knowing that the kernel fo ...
  Topic: [Xansys] Vector plots
danbohlen

Replies: 4
Views: 6337

PostForum: XANSYS   Posted: Thu May 17, 2012 6:53 am   Subject: [Xansys] Vector plots
I assume it's a 3D model? I've don't vector contours on 2D before.... I'm trying 3D right now - no luck.

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org ...
  Topic: [Xansys] Vector plots
danbohlen

Replies: 4
Views: 6337

PostForum: XANSYS   Posted: Thu May 17, 2012 6:52 am   Subject: [Xansys] Vector plots
No luck here - it's like a "Car Talk" puzzler.....


Dan don'tAnsyslikemybrother Bohlen

Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, ...
  Topic: Different Types of stress
danbohlen

Replies: 4
Views: 5428

PostForum: XANSYS   Posted: Thu May 17, 2012 6:27 am   Subject: [Xansys] Different Types of stress
Hi,

Are you talking about

General Postprocessing> Plot results > contour plot > plot nodal results

Will list the stresses Ansys computes (Sx, Sy,... ). Once you make a plot there is a *G ...
  Topic: [Xansys] WB: Cant make a path from multiple line segments on
danbohlen

Replies: 1
Views: 2125

PostForum: XANSYS   Posted: Tue May 15, 2012 10:00 am   Subject: [Xansys] WB: Cant make a path from multiple line segments on
Hi Rick,

I haven't had this issue, but you know how to work around it, right?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 450 ...
  Topic: [Xansys] [APDL][STRUCT] - Coupling DOF's in two paralel plat
danbohlen

Replies: 0
Views: 1514

PostForum: XANSYS   Posted: Fri May 11, 2012 12:39 pm   Subject: [Xansys] [APDL][STRUCT] - Coupling DOF's in two paralel plat
You could save the existing node locations (NWRIT)

move the nodes to make them coincident (NMOD, NCOPY, etc)

CPINT

Then read in the old node locations (NREAD)

For your type of analysis is this th ...
  Topic: Shell elements formulation
danbohlen

Replies: 21
Views: 22795

PostForum: XANSYS   Posted: Wed May 09, 2012 5:28 am   Subject: [Xansys] Shell elements formulation
AS far as I know there are only 7 words you can't say on TV.

http://en.wikipedia.org/wiki/Seven_dirty_words

But, hey this is the internet - so anything goes


Dan titsshouldn'tevenbeonthelistperGeor ...
  Topic: Shell elements formulation
danbohlen

Replies: 21
Views: 22795

PostForum: XANSYS   Posted: Tue May 08, 2012 8:20 am   Subject: [Xansys] Shell elements formulation
Old Farts Brotherhood is my guess....


Dan pitifuloldfart Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" ...
  Topic: Shell elements formulation
danbohlen

Replies: 21
Views: 22795

PostForum: XANSYS   Posted: Tue May 08, 2012 5:20 am   Subject: [Xansys] Shell elements formulation
Hi Bram,

Thanks for the update.

I guess I need to relegated to the Feature archive - I would have built the model with STIF63's....


Dan givemethoseoldtimeelements Bohlen
Senior Staff Engineer, Mi ...
  Topic: Shell elements formulation
danbohlen

Replies: 21
Views: 22795

PostForum: XANSYS   Posted: Mon May 07, 2012 8:53 am   Subject: [Xansys] Shell elements formulation
As far as I know areas in Ansys have no thickness. You must assign a thickness for a shell to the elements (or areas before meshing) using a real constant.

You can use SOLSH190 if you have volumes t ...
  Topic: [Xansys] I will be away until May 10th
danbohlen

Replies: 2
Views: 2236

PostForum: XANSYS   Posted: Mon May 07, 2012 6:57 am   Subject: [Xansys] I will be away until May 10th
Sensorprod???


Does anyone else on this list get SPAM from these losers???

If so reply, I'd suggest the moderator dump any email accounts from these clowns. There are just here harvesting email add ...
  Topic: 2D Stress/displacement as input to 3D analysis
danbohlen

Replies: 7
Views: 9224

PostForum: XANSYS   Posted: Mon May 07, 2012 6:55 am   Subject: [Xansys] 2D Stress/displacement as input to 3D analysis
Well, the stresses/displacements are stored on the .rst file!

You can automate the extraction of the displacement/forces/temperature from the 2D and input in the 3D using the Ansys macro programming ...
  Topic: [Xansys] axial forces using FSUM, NFORCE commands
danbohlen

Replies: 14
Views: 26518

PostForum: XANSYS   Posted: Fri May 04, 2012 12:36 pm   Subject: [Xansys] axial forces using FSUM, NFORCE commands
Maybe make a 2 element test case and see if it works.....


Dan likeNikesaysJustDoIt Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45 ...
  Topic: Cyclic load
danbohlen

Replies: 2
Views: 3530

PostForum: XANSYS   Posted: Fri May 04, 2012 11:47 am   Subject: [Xansys] Cyclic load
Yes


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH  45069
(NP2 Pod "B" 2nd floor desk #135)
M/D  W217  513 ...
  Topic: [Xansys] Using cables (LINK180) in Ansys
danbohlen

Replies: 3
Views: 11581

PostForum: XANSYS   Posted: Fri May 04, 2012 11:20 am   Subject: [Xansys] Using cables (LINK180) in Ansys
Have you played with the 1 keyoption on the element type. You are using cross section scaling is a function of stretch versus
"classic".

Weird at all your other units are SI, but the prete ...
  Topic: [Xansys] Using cables (LINK180) in Ansys
danbohlen

Replies: 3
Views: 11581

PostForum: XANSYS   Posted: Fri May 04, 2012 10:43 am   Subject: [Xansys] Using cables (LINK180) in Ansys
I shudder to suggest this, but I bet your model is small. You could paste the input file to create it and the source and result of the "analytical" solution you are trying to match. You me ...
  Topic: [Xansys] axial forces using FSUM, NFORCE commands
danbohlen

Replies: 14
Views: 26518

PostForum: XANSYS   Posted: Fri May 04, 2012 10:33 am   Subject: [Xansys] axial forces using FSUM, NFORCE commands
To get the forces going through a section select the nodes that define the section and the elements on one side of the section- then do FSUM or NFORCE...


Dan Bohlen
Senior Staff Engineer, Military ...
  Topic: [Xansys] R: [XANSYS][STRUC]Why do solid elements have no rot
danbohlen

Replies: 0
Views: 1430

PostForum: XANSYS   Posted: Mon Apr 30, 2012 4:34 am   Subject: [Xansys] R: [XANSYS][STRUC]Why do solid elements have no rot
I'm surprised the traction this question has gotten.

Here's an engineering answer: Because John Swanson didn't put them in the code. Just use the elements JS gave you and get back to typing..... : ...
  Topic: stress Linearization across the thickness of vessel
danbohlen

Replies: 5
Views: 6901

PostForum: XANSYS   Posted: Mon Apr 30, 2012 4:30 am   Subject: [Xansys] stress Linearization across the thickness of vessel
Hi,

If you don't get speedy response - you might check the archives. I know I've seen this question before.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Avia ...
  Topic: [Xansys] error messages
danbohlen

Replies: 5
Views: 6688

PostForum: XANSYS   Posted: Mon Apr 30, 2012 4:27 am   Subject: [Xansys] error messages
A different approach perhaps. XOX will work more reliably from a "bottom up" approach. If there's a way to create your geometry parametrically from keypoints, then lines, areas etc.....

T ...
  Topic: LSSOLVE macro
danbohlen

Replies: 0
Views: 2561

PostForum: XANSYS   Posted: Wed Apr 25, 2012 11:34 am   Subject: LSSOLVE macro
There was a post where there was a slim possibility that this macro wasn’t working for a HPC solution.

I don’t see anything obvious in the macro that would mess up with HPC – so i ...
  Topic: [Xansys] creating an output header file with more than 19 co
danbohlen

Replies: 7
Views: 10736

PostForum: XANSYS   Posted: Wed Apr 25, 2012 9:28 am   Subject: [Xansys] creating an output header file with more than 19 co
Have to do something outside of Ansys....

-----Original Message-----
From: xansys-bounces@xansys.org Fantastic! Thank you. The \b switch was the trick. Below is what I
ended up with for a finished ch ...
  Topic: Any good example for creating more then 99 load cases?
danbohlen

Replies: 12
Views: 13190

PostForum: XANSYS   Posted: Wed Apr 25, 2012 9:27 am   Subject: [Xansys] Any good example for creating more then 99 load cas
OK, We'll give this a go once again.

LCWRIT writes files with boundary conditions: various model inputs for different load situations: different temperatures. There is a limit for any particular fi ...
  Topic: Superlelement problem with HPC license
danbohlen

Replies: 2
Views: 3997

PostForum: XANSYS   Posted: Wed Apr 25, 2012 4:36 am   Subject: [Xansys] Superlelement problem with HPC license
Just taking a wild stab here, but look in the LSSOLVE macro and make sure that there isn't a command in there fouling up the HPC arrangement. You'll need to find where that macro is stored on the sy ...
  Topic: Any good example for creating more then 99 load cases?
danbohlen

Replies: 12
Views: 13190

PostForum: XANSYS   Posted: Wed Apr 25, 2012 4:27 am   Subject: [Xansys] Any good example for creating more then 99 load cas
Ah, OK.

Well the 10 cases to solve can be done with xxxx.s0# files certainly.

A macro for doing the LCASE results combinations sounds like a good idea if you are doing a bunch.

Still looking for h ...
  Topic: [Xansys] [ADMIN] Future Development of XANSYS
danbohlen

Replies: 7
Views: 6707

PostForum: XANSYS   Posted: Tue Apr 24, 2012 12:47 pm   Subject: [Xansys] [ADMIN] Future Development of XANSYS
"meebo" ?



-----Original Message-----
From: xansys-bounces@xansys.org OOOPS!

Looks like maybe I stirred the pot on this topic anyway....

Before we get too deep into it I'd just like to s ...
  Topic: [Xansys] [ADMIN] Future Development of XANSYS
danbohlen

Replies: 7
Views: 6707

PostForum: XANSYS   Posted: Tue Apr 24, 2012 12:02 pm   Subject: [Xansys] [ADMIN] Future Development of XANSYS
OOOPS!

Looks like maybe I stirred the pot on this topic anyway....

Before we get too deep into it I'd just like to state there will be no perfect solution to a forum like this. All I can say is tha ...
  Topic: Any good example for creating more then 99 load cases?
danbohlen

Replies: 12
Views: 13190

PostForum: XANSYS   Posted: Tue Apr 24, 2012 11:40 am   Subject: [Xansys] Any good example for creating more then 99 load cas
HUH?


Are you trying to SOLVE 99+ loads cases or looking to combine them in /POST1?

Those are 2 different tasks....


Dan iamsoconfused Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Airc ...
  Topic: How to model the radial stiffness of a tire
danbohlen

Replies: 18
Views: 19931

PostForum: XANSYS   Posted: Tue Apr 24, 2012 8:25 am   Subject: [Xansys] How to model the radial stiffness of a tire
As I was phasing out as moderator - I brought up that concept to the list.

The idea was those you tend to ANSWER questions would be free and the newbies would be subscribers. This $$ was also to c ...
  Topic: How to model the radial stiffness of a tire
danbohlen

Replies: 18
Views: 19931

PostForum: XANSYS   Posted: Tue Apr 24, 2012 8:21 am   Subject: [Xansys] How to model the radial stiffness of a tire
I bet 3,000+ were grad students who subscribed, got their
homework/thesis done, graduated, and now no longer have access to the
emails.... :-)


-----Original Message-----
From: xansys-bounces@xansys ...
  Topic: How to model the radial stiffness of a tire
danbohlen

Replies: 18
Views: 19931

PostForum: XANSYS   Posted: Tue Apr 24, 2012 7:39 am   Subject: [Xansys] How to model the radial stiffness of a tire
If you just got a pound for a lifetime membership each.....



-----Original Message-----
From: xansys-bounces@xansys.org So with 2000+ list members

Pretty close to 4000 members actually.
--
Martin L ...
  Topic: How to model the radial stiffness of a tire
danbohlen

Replies: 18
Views: 19931

PostForum: XANSYS   Posted: Mon Apr 23, 2012 8:57 am   Subject: [Xansys] How to model the radial stiffness of a tire
Maybe just model the tires as springs?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floor des ...
  Topic: Any good example for creating more then 99 load cases?
danbohlen

Replies: 12
Views: 13190

PostForum: XANSYS   Posted: Fri Apr 20, 2012 10:38 am   Subject: [Xansys] Any good example for creating more then 99 load cas
Actually, I leveraged it off someone on this list. Someone who worked for a helicopter outfit if I recall.....



Dan imitationisthesincereestformofflatteryorjustbeinglazyanduncreative Bohlen
Sen ...
  Topic: [Xansys] the differences of upcoord and upgeom
danbohlen

Replies: 1
Views: 4265

PostForum: XANSYS   Posted: Fri Apr 20, 2012 10:06 am   Subject: [Xansys] the differences of upcoord and upgeom
I've always used UPCOORD for prestressed modal. Never seen UPGEOM. Looks like it does the same thing maybe in 1 step.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines ...
  Topic: Any good example for creating more then 99 load cases?
danbohlen

Replies: 12
Views: 13190

PostForum: XANSYS   Posted: Fri Apr 20, 2012 10:02 am   Subject: [Xansys] Any good example for creating more then 99 load cas
Or give up on the *.sXX file structure. Just create your own "input files" and do a *do loop in scripting or within Ansys. Look in the LSSOLVE macro and that's all you'll see.

Name the ...
  Topic: Warning Message
danbohlen

Replies: 4
Views: 4012

PostForum: XANSYS   Posted: Tue Apr 17, 2012 12:38 pm   Subject: [Xansys] Warning Message
#1 You might want to mention what element type (concrete?).

#2 You just about have it

nsel,s,loc,x,100,200


Dan thisismorefunthanstaringatstressplots Bohlen
Senior Staff Engineer, Military HPT ...
  Topic: Workbench and MAPDL
danbohlen

Replies: 13
Views: 12302

PostForum: XANSYS   Posted: Tue Apr 17, 2012 10:30 am   Subject: [Xansys] Workbench and MAPDL
Hi Samer,

I don't do the Ansys installation here. So I have no idea if it can be done. It would seem like a good thing to be able to install just what you need. On the other hand hard disk space ...
  Topic: Workbench and MAPDL
danbohlen

Replies: 13
Views: 12302

PostForum: XANSYS   Posted: Tue Apr 17, 2012 7:47 am   Subject: [Xansys] Workbench and MAPDL
Just kidding..... :-)



Dan admittedMAPDLbigot Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floo ...
  Topic: Workbench and MAPDL
danbohlen

Replies: 13
Views: 12302

PostForum: XANSYS   Posted: Mon Apr 16, 2012 12:39 pm   Subject: [Xansys] Workbench and MAPDL
I love 3 words of the post below.....

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of abid.khan
Sent: Monday, April 16, 2012 2:57 PM
To: ...
  Topic: Fastening postprocessing *do and *if loops
danbohlen

Replies: 15
Views: 18086

PostForum: XANSYS   Posted: Mon Apr 16, 2012 11:03 am   Subject: [Xansys] Fastening postprocessing *do and *if loops
Hi Fabio,

Well, you are on the right track - vector-izing as many operations as possible speeds things up. There are also "implied *DO loops that work faster than *DO. Unfortunately, I can't p ...
  Topic: [Xansys] Force vs. moment convergence criteria...
danbohlen

Replies: 15
Views: 22814

PostForum: XANSYS   Posted: Thu Apr 12, 2012 7:43 am   Subject: [Xansys] Force vs. moment convergence criteria...
AMEN!

One last rant: I've running ANSYS for 25 years, and most all my
problems have contact elements in them. A lot of people consider me an
expert in ANSYS contact, but I really hate being called ...
  Topic: [Xansys] Force vs. moment convergence criteria...
danbohlen

Replies: 15
Views: 22814

PostForum: XANSYS   Posted: Wed Apr 11, 2012 12:24 pm   Subject: [Xansys] Force vs. moment convergence criteria...
" My theory is that when it is too big you start to get spurious contact "

We've been having this discussion here to. If this is true - I certainly hope the legacy contact elements stick a ...
  Topic: [Xansys] R: Force vs. moment convergence criteria...
danbohlen

Replies: 1
Views: 5709

PostForum: XANSYS   Posted: Wed Apr 11, 2012 9:20 am   Subject: [Xansys] R: Force vs. moment convergence criteria...
Reposting....

http://www.idac.co.uk/services/downloads/consistent.pdf



-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of Mally, Carl
Sent: W ...
  Topic: [Xansys] Force vs. moment convergence criteria...
danbohlen

Replies: 15
Views: 22814

PostForum: XANSYS   Posted: Wed Apr 11, 2012 6:43 am   Subject: [Xansys] Force vs. moment convergence criteria...
With friction, maybe adaptive descent might be more useful than line search.

Are you ramping the loads with substeps? At time we run NSUB,250,250,10

As far as the moment, it does seem small (but t ...
  Topic: [Xansys] [MAPDL] Modify nodal stress results andstorein.RST
danbohlen

Replies: 1
Views: 3262

PostForum: XANSYS   Posted: Wed Apr 11, 2012 5:02 am   Subject: [Xansys] [MAPDL] Modify nodal stress results andstorein.RST
There ought to be a tip jar for all the help Santhosh.M is getting
here.... :-)

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of Prentice, I ...
  Topic: [Xansys] Pre-stress Modal Analysis
danbohlen

Replies: 3
Views: 8979

PostForum: XANSYS   Posted: Wed Apr 11, 2012 4:52 am   Subject: [Xansys] Pre-stress Modal Analysis
Might need some basic RTFM and some basic models. (At least in Ansys
MAPDL)

There's a pretty good write up on how to do pre-stressed modal.

If you first few freq are near 0 is the model fixed in ...
  Topic: Select nodes
danbohlen

Replies: 4
Views: 4852

PostForum: XANSYS   Posted: Tue Apr 10, 2012 12:29 pm   Subject: [Xansys] Select nodes
Nsel,,loc,x
Nsel,a,loc,x

You'll need a *DO loop to increment the location along the line.



-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of ...
  Topic: [Xansys] [MAPDL] Modify nodal stress results and store in .R
danbohlen

Replies: 3
Views: 4123

PostForum: XANSYS   Posted: Tue Apr 10, 2012 7:20 am   Subject: [Xansys] [MAPDL] Modify nodal stress results and store in .R
Worst case scenario - if there's no way to store the changes you need in a .rst or load case file. You create an input file to alter the results as needed. You document the results and point out to ...
  Topic: [Xansys] Reaction force from Fixed support
danbohlen

Replies: 2
Views: 3344

PostForum: XANSYS   Posted: Tue Apr 10, 2012 5:18 am   Subject: [Xansys] Reaction force from Fixed support
Ben,

Frankly, I think you'd need to better describe and/or post a picture of what you are trying to do to get much help here.

Are you looking for the force going through the fastener or is there con ...
  Topic: [Xansys] Reaction force from Fixed support
danbohlen

Replies: 2
Views: 3344

PostForum: XANSYS   Posted: Mon Apr 09, 2012 6:52 am   Subject: [Xansys] Reaction force from Fixed support
The question is a little unclear to me. Are you interested in the contact between the plates or the attachment of the 2 plates together or the attachment of the model to ground.


Dan Bohlen
Senior ...
  Topic: [Xansys] hydraulically coupled cylinder
danbohlen

Replies: 24
Views: 15834

PostForum: XANSYS   Posted: Fri Apr 06, 2012 7:22 am   Subject: [Xansys] hydraulically coupled cylinder
Must resist flame-blame..... it is almost the weekend..... WWJSD?

(What Would John Swanson Do?)


Dan acrypticquestionbegsacrypticanswer Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircr ...
  Topic: [Xansys] Ansys 13 bugs
danbohlen

Replies: 0
Views: 1118

PostForum: XANSYS   Posted: Thu Apr 05, 2012 6:18 am   Subject: [Xansys] Ansys 13 bugs
Figured out the graphics thing - looks OK with full graphics. Maybe it's a feature not a bug....


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
We ...
  Topic: Ansys 13 bugs
danbohlen

Replies: 0
Views: 1350

PostForum: XANSYS   Posted: Thu Apr 05, 2012 5:11 am   Subject: Ansys 13 bugs
Hi All,

These aren’t Class 3 error material, but we’ve found:

<![if !supportLists]>- <![endif]>CBDOF doesn’t always work correctly
<![if !supportLists]>- < ...
  Topic: [Xansys] butt welding of aluminum bars
danbohlen

Replies: 29
Views: 29335

PostForum: XANSYS   Posted: Tue Apr 03, 2012 5:39 am   Subject: [Xansys] butt welding of aluminum bars
Sure.

Dan

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of Christos Pitenis
Sent: Tuesday, April 03, 2012 4:03 AM
To: xansys@xansys.org
Subj ...
  Topic: How let the model display mat color wo mat number?
danbohlen

Replies: 3
Views: 3682

PostForum: XANSYS   Posted: Fri Mar 30, 2012 9:48 am   Subject: [Xansys] How let the model display mat color wo mat number?
Do you need the color or numbering on at all??? Just turn it off

/pnum,mat,0

Also you could dump out a screen dump manually.

Or maybe my macro will work for u

!/sys,rm *.png
!NAME=
!*DIM,NAME,CHA ...
  Topic: [Xansys] [WB] General
danbohlen

Replies: 19
Views: 16109

PostForum: XANSYS   Posted: Fri Mar 30, 2012 9:40 am   Subject: [Xansys] [WB] General
Can you send to your ASD and let them have a go at it?



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH  45069
(NP2 Pod ...
  Topic: [STRUC] Mass Units
danbohlen

Replies: 14
Views: 21005

PostForum: XANSYS   Posted: Fri Mar 30, 2012 7:19 am   Subject: [Xansys] [STRUC] Mass Units
Amen

Slugs=mass
Lbs= force



-----Original Message-----
From: xansys-bounces@xansys.org
The input accel curve from our test lab is in units of g's. My
results correlate nicely with measured resul ...
  Topic: FEA JOB
danbohlen

Replies: 1
Views: 2991

PostForum: XANSYS   Posted: Thu Mar 29, 2012 12:32 pm   Subject: [Xansys] FEA JOB
Thanks for including salary info on this.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH  45069
(NP2 Pod "B" 2 ...
  Topic: Is there a solution to STOP/DISABLE the *verify message?
danbohlen

Replies: 6
Views: 7919

PostForum: XANSYS   Posted: Thu Mar 29, 2012 12:31 pm   Subject: [Xansys] Is there a solution to STOP/DISABLE the *verify mes
What *verify window are you getting???


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floor des ...
  Topic: [Xansys] How to plot multiple sets of data using *vplot
danbohlen

Replies: 5
Views: 5304

PostForum: XANSYS   Posted: Thu Mar 29, 2012 12:24 pm   Subject: [Xansys] How to plot multiple sets of data using *vplot
Whole another idea - dump the data out and plot in EXCEL or other routine.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
...
  Topic: [APDL] Equivalent Classic method for WB User Defined Result
danbohlen

Replies: 6
Views: 10362

PostForum: XANSYS   Posted: Thu Mar 29, 2012 12:19 pm   Subject: [Xansys] [APDL] Equivalent Classic method for WB User Define
If you elements don't have the DOF I doubt you can save results to that DOF.

You'll just have to be careful not to mix up results. When you read in the dummy values they aren't stored on the .rst ...
  Topic: Substructure node number
danbohlen

Replies: 5
Views: 6891

PostForum: XANSYS   Posted: Thu Mar 29, 2012 12:16 pm   Subject: [Xansys] Substructure node number
Can you recreate the substructure after NUMC the nodes?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B&qu ...
  Topic: [APDL] Equivalent Classic method for WB User Defined Result
danbohlen

Replies: 6
Views: 10362

PostForum: XANSYS   Posted: Thu Mar 29, 2012 9:28 am   Subject: [Xansys] [APDL] Equivalent Classic method for WB User Define
You might want to elaborate what a "user defined expression" is. Is it an equation or some values from an equation?

Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft En ...
  Topic: [APDL] Mesh issue. APDL vs WB
danbohlen

Replies: 11
Views: 20711

PostForum: XANSYS   Posted: Tue Mar 27, 2012 7:09 am   Subject: [Xansys] [APDL] Mesh issue. APDL vs WB
I recant! WB is great! I believe!

Maybe you all ought to talk this poor soul from wandering into the forest of APDL....


Dan WBforeverAPDLnever Bohlen
Senior Staff Engineer, Military HPT Analysis ...
  Topic: [APDL] Mesh issue. APDL vs WB
danbohlen

Replies: 11
Views: 20711

PostForum: XANSYS   Posted: Tue Mar 27, 2012 7:08 am   Subject: [Xansys] [APDL] Mesh issue. APDL vs WB
Is mapped meshing any easier in WB than APDL? Does it have a more powerful meshing tools capabilities.

I guess my point was - if you can create a particular mesh in WB - you probably can in APDL. O ...
  Topic: [APDL] Mesh issue. APDL vs WB
danbohlen

Replies: 11
Views: 20711

PostForum: XANSYS   Posted: Tue Mar 27, 2012 5:09 am   Subject: [Xansys] [APDL] Mesh issue. APDL vs WB
I'm not a WB user, but my impression is that APDL has more meshing control than WB. More complex commands perhaps, but lots of options controlling size. You should be able to get whatever mesh you n ...
  Topic: [Xansys] Orthotropic Material...
danbohlen

Replies: 10
Views: 16623

PostForum: XANSYS   Posted: Mon Mar 19, 2012 12:22 pm   Subject: [Xansys] Orthotropic Material...
Ansys will do the positive definite check.

(At least "classic" used to.....)


Dan Givemethatoldfashionedansys Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
638 ...
  Topic: [xansys] grouping nodes
danbohlen

Replies: 10
Views: 9125

PostForum: XANSYS   Posted: Fri Mar 16, 2012 7:41 am   Subject: [Xansys] [xansys] grouping nodes
APPEASER! :-)

It always seems like the easy questions are the more anonymous....

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of David Gro ...
  Topic: Might be time to repost this....
danbohlen

Replies: 0
Views: 2216

PostForum: XANSYS   Posted: Fri Mar 16, 2012 4:08 am   Subject: Might be time to repost this....
Tue Mar 25, 2008 12:11 pm
The below guide is an adaption of If someone replied to your topic with a link to this resource, understand they want to help you so please read it in full before return ...
  Topic: [xansys] grouping nodes
danbohlen

Replies: 10
Views: 9125

PostForum: XANSYS   Posted: Fri Mar 16, 2012 4:04 am   Subject: [Xansys] [xansys] grouping nodes
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ x ...
  Topic: [Xansys] [EMAG] dynamic rotor of PMSM in transient analysis
danbohlen

Replies: 6
Views: 7182

PostForum: XANSYS   Posted: Thu Mar 15, 2012 12:51 pm   Subject: [Xansys] [EMAG] dynamic rotor of PMSM in transient analysis
Yes, I do.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floor desk #135)
M/D W217 513-672- ...
  Topic: [Xansys] Need BCSO for modal
danbohlen

Replies: 3
Views: 3759

PostForum: XANSYS   Posted: Thu Mar 15, 2012 11:35 am   Subject: [Xansys] Need BCSO for modal
I modal works like structural the -m and -db don't do the job. It's
strictly BCSOPTION command. This has been the case since the SPARSE
solver came out (~2000?). It's silly - Ansys ought to fix th ...
  Topic: [Xansys] Need BCSO for modal
danbohlen

Replies: 3
Views: 3759

PostForum: XANSYS   Posted: Thu Mar 15, 2012 10:00 am   Subject: [Xansys] Need BCSO for modal
Sorry to bother you all, I did answer my own question. You no longer need the command for static structural in ansys13, why do I need it for modal????


Dan dammitansysjustgogetthememoryyouneed Bohle ...
  Topic: Need BCSO for modal
danbohlen

Replies: 0
Views: 1404

PostForum: XANSYS   Posted: Thu Mar 15, 2012 9:52 am   Subject: Need BCSO for modal
Hi,

Running a modal and got this


Memory allocated for solver = 4232.847 MB
Memory required for in-core = 16682.470 MB
Optimal memory required for out-of-core = 1939.404 MB
Minimum memory ...
  Topic: temperature dependent load enquiry
danbohlen

Replies: 4
Views: 4706

PostForum: XANSYS   Posted: Thu Mar 15, 2012 5:32 am   Subject: [Xansys] temperature dependent load enquiry
Do you have "classic" Ansys Mechanical APDL available?

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of zhang.li
Sent: Wednesday, ...
  Topic: [Xansys] Maximum Principle Total Strain?
danbohlen

Replies: 4
Views: 13531

PostForum: XANSYS   Posted: Tue Mar 13, 2012 1:05 pm   Subject: [Xansys] Maximum Principle Total Strain?
What do you mean by "total strain" - principle? For the decrepit SOLID45 – here are the strain available….


EPEL:X, Y, Z, XY, YZ, XZ
Elastic strains
Y
Y
EPEL:1, 2, 3 ...
  Topic: Nodal stresses in shell elements (top/bottom)
danbohlen

Replies: 30
Views: 37760

PostForum: XANSYS   Posted: Tue Mar 13, 2012 12:30 pm   Subject: [Xansys] Nodal stresses in shell elements (top/bottom)
From google translate - I wonder how good it is....

Tom,
I do not know if I want to do anything for them - it seems that competition is a buy soft tire let them in your sauce. Unless I'm wrong. If ...
  Topic: Nodal stresses in shell elements (top/bottom)
danbohlen

Replies: 30
Views: 37760

PostForum: XANSYS   Posted: Tue Mar 13, 2012 8:59 am   Subject: [Xansys] Nodal stresses in shell elements (top/bottom)
:-)

You saw right though me Chris!

Actually, I think the guy is trying to do something simple, but is getting hung up on extracting results on plates. I always believe, when possible, bricks (SOLID ...
  Topic: [APDL] - Elements - Axy and non-axy loading
danbohlen

Replies: 3
Views: 3466

PostForum: XANSYS   Posted: Tue Mar 13, 2012 7:05 am   Subject: [Xansys] [APDL] - Elements - Axy and non-axy loading
2 suggestions:

You might look at a "simpler" old school element (PLANE25)

When I'm trying something for the first time I look for a verification problem in the online help. VM43 might be ...
  Topic: Nodal stresses in shell elements (top/bottom)
danbohlen

Replies: 30
Views: 37760

PostForum: XANSYS   Posted: Tue Mar 13, 2012 4:14 am   Subject: [Xansys] Nodal stresses in shell elements (top/bottom)
Maybe you should just model this as a solid - it might seem more straightforward to you.



Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chest ...
  Topic: Nodal stresses in shell elements (top/bottom)
danbohlen

Replies: 30
Views: 37760

PostForum: XANSYS   Posted: Mon Mar 12, 2012 5:45 am   Subject: [Xansys] Nodal stresses in shell elements (top/bottom)
You might want to mention the element type you are using. I would think the documentation on extracting these values is pretty straight forward.


Dan Bohlen
Senior Staff Engineer, Military HPT An ...
  Topic: [Xansys] Contact force on 2D element
danbohlen

Replies: 1
Views: 1403

PostForum: XANSYS   Posted: Thu Mar 08, 2012 12:30 pm   Subject: [Xansys] Contact force on 2D element
Which type of contact elements are you using?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd ...
  Topic: [WB] [STRUC] Min / Max / Average of a Named Selection
danbohlen

Replies: 3
Views: 5614

PostForum: XANSYS   Posted: Thu Mar 08, 2012 8:15 am   Subject: [Xansys] [WB] [STRUC] Min / Max / Average of a Named Selecti
I don't think there is a way - unless you send the plots to your screen.

But you automatically delete the .png with a /SYS command

/SYS, rm *.png


Dan Bohlen
Senior Staff Engineer, Military HPT An ...
  Topic: Xansys] [APDL] Write large array into csv file
danbohlen

Replies: 3
Views: 6417

PostForum: XANSYS   Posted: Thu Mar 08, 2012 5:34 am   Subject: [Xansys] Xansys] [APDL] Write large array into csv file
Perhaps it might be useful to describe why you would Ansys to write out some much data into a file. There might be some alternative. Perhaps an external program to grab the data from the .db or .rs ...
  Topic: Calculating Stiffness in Ansys classic
danbohlen

Replies: 5
Views: 11062

PostForum: XANSYS   Posted: Wed Mar 07, 2012 6:55 am   Subject: [Xansys] Calculating Stiffness in Ansys classic
Since this is a fellow GE type I guess I won't flame him for not putting his full affiliation. :-)

BTW it is

Ankit Patel
Acquired Salaried Exempt
GE Energy
Energy - Converteam
Leicester Road
Rugby ...
  Topic: [MAPDL] area/line/volume selection
danbohlen

Replies: 6
Views: 6167

PostForum: XANSYS   Posted: Mon Mar 05, 2012 7:02 am   Subject: [Xansys] [MAPDL] area/line/volume selection
Back in the day with FORTRAN you could force variables to be real or integer. There is an Ansys function that can do the rounding.


Dan Sorryifioffendedanyonewiththeformresponse Bohlen
Senior Staff ...
  Topic: [APDL][STRUC][DYNM] Strange warning from LS-DYNA output
danbohlen

Replies: 28
Views: 35691

PostForum: XANSYS   Posted: Fri Mar 02, 2012 12:04 pm   Subject: [Xansys] [APDL][STRUC][DYNM] Strange warning from LS-DYNA ou
Love that show - I know the exact scene you are paraphrasing......

-----Original Message-----
From: xansys-bounces@xansys.org Please can someone help me?

I've already read the rules and I've really ...
  Topic: [APDL][STRUC][DYNM] Strange warning from LS-DYNA output
danbohlen

Replies: 28
Views: 35691

PostForum: XANSYS   Posted: Fri Mar 02, 2012 11:30 am   Subject: [Xansys] [APDL][STRUC][DYNM] Strange warning from LS-DYNA ou
Below is what I received.......

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of andre.jesus
Sent: Friday, March 02, 2012 8:28 AM
To: xansys@ ...
  Topic: [APDL][STRUC][DYNM] Strange warning from LS-DYNA output
danbohlen

Replies: 28
Views: 35691

PostForum: XANSYS   Posted: Fri Mar 02, 2012 11:29 am   Subject: [Xansys] [APDL][STRUC][DYNM] Strange warning from LS-DYNA ou
The version I got in my email had nothing in it - no question, no
signature. I'm guessing the question was posted earlier.....

-----Original Message-----
From: xansys-bounces@xansys.org This is rat ...
  Topic: [APDL][STRUC][DYNM] Strange warning from LS-DYNA output
danbohlen

Replies: 28
Views: 35691

PostForum: XANSYS   Posted: Fri Mar 02, 2012 10:34 am   Subject: [Xansys] [APDL][STRUC][DYNM] Strange warning from LS-DYNA ou
STANDARD XANSYS BONEHEAD REPLY FORM (version 1.0) Written by: Dan Bohlen
(check all boxes that apply)

Note: My dog Danbirt handles flaming XANSYS posters because I'm too nice. - DLB

Dear:

[ ] ...
  Topic: [Xansys] [APDL] vread, unknown number of rows
danbohlen

Replies: 2
Views: 5184

PostForum: XANSYS   Posted: Thu Mar 01, 2012 8:56 am   Subject: [Xansys] [APDL] vread, unknown number of rows
Does this external file change over time? Why not pull it into a text
editor to find out how many lines of data.

You might look at the *TREAD command - it's a little more flexible and
you can copy t ...
  Topic: [Xansys] [xansys] OMEGA: different res. when modeling inmm v
danbohlen

Replies: 0
Views: 1259

PostForum: XANSYS   Posted: Tue Feb 28, 2012 11:45 am   Subject: [Xansys] [xansys] OMEGA: different res. when modeling inmm v
The Truth hurts, baby! :-)

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of Tom Davis
Sent: Tuesday, February 28, 2012 1:38 PM
To: xansys@xa ...
  Topic: [xansys] OMEGA: different res. when modeling in mm vs meters
danbohlen

Replies: 8
Views: 8669

PostForum: XANSYS   Posted: Tue Feb 28, 2012 10:58 am   Subject: [Xansys] [xansys] OMEGA: different res. when modeling in mm
Consistent units. I bet we've all been burned by that once!

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of stefano.garbin
Sent: Tuesday, F ...
  Topic: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
danbohlen

Replies: 25
Views: 30067

PostForum: XANSYS   Posted: Tue Feb 28, 2012 6:37 am   Subject: [Xansys] loadsteps and substeps in a nonlinear static analys
Yep, LSSOLVE does what you want.

Consider this - why write out the loadstep files? Why not use your *DO loop to read your load and solve? Makes no difference until you want more than 99 load steps. ...
  Topic: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
danbohlen

Replies: 25
Views: 30067

PostForum: XANSYS   Posted: Tue Feb 28, 2012 6:22 am   Subject: [Xansys] loadsteps and substeps in a nonlinear static analys
That depends on the rest of your input stream. If you are in /solu and input load case after load case and solve after solve, then your path dependency (starting load case N+1 from load case N) is in ...
  Topic: contour plot of post processed arrays
danbohlen

Replies: 19
Views: 20991

PostForum: XANSYS   Posted: Mon Feb 27, 2012 1:24 pm   Subject: [Xansys] contour plot of post processed arrays
Or just don't use LSSOLVE. Use a *DO loop or an external script...

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of Reichenbach, Rich
Sent: ...
  Topic: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
danbohlen

Replies: 25
Views: 30067

PostForum: XANSYS   Posted: Mon Feb 27, 2012 8:38 am   Subject: [Xansys] Warning and Error Messages
I wouldn't worry about it. As long as you have selected what you want it is immaterial

As with any of the questions here without much background the advice you get can be off. Didn't realize you we ...
  Topic: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
danbohlen

Replies: 25
Views: 30067

PostForum: XANSYS   Posted: Mon Feb 27, 2012 8:06 am   Subject: [Xansys] Warning and Error Messages
Ah yes inscrutable warning and errors messages...

First one is straight forward. If you read up on constraint equations - the theory is for small displacements. (Imagine your Ux/UY relations IF you ...
  Topic: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
danbohlen

Replies: 25
Views: 30067

PostForum: XANSYS   Posted: Fri Feb 24, 2012 7:16 am   Subject: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
Does NLGEOM,ON take care of the part shape changes?

-----Original Message-----
From: xansys-bounces@xansys.org I noticed that you have

upcoord,1.0

commands in your *DO loop. Please note that &quo ...
  Topic: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
danbohlen

Replies: 25
Views: 30067

PostForum: XANSYS   Posted: Fri Feb 24, 2012 7:14 am   Subject: [Xansys] [WB][Struc]Do loop with solve command, substeps, lo
With large displacements - would you need to UPCOORD at all?

-----Original Message-----
From: xansys-bounces@xansys.org Xansys users,

I wrote my first Do-loop today! :) I try to increment the load f ...
  Topic: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
danbohlen

Replies: 20
Views: 27201

PostForum: XANSYS   Posted: Thu Feb 23, 2012 12:39 pm   Subject: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
Thank you for the compliment, Master.

- Grasshopper

-----Original Message-----
From: xansys-bounces@xansys.org I simply asked, "If the results disagree, which are you going to
believe." ...
  Topic: [WB][Struc]Do loop with solve command, substeps, load incr.
danbohlen

Replies: 4
Views: 5398

PostForum: XANSYS   Posted: Thu Feb 23, 2012 9:12 am   Subject: [Xansys] [WB][Struc]Do loop with solve command, substeps,loa
What does "deformations get way to big" mean exactly? Is something going on nonlinear here? Forgive me I haven't kept up with this thread.

If your *DO loop is just ramping on load can't ...
  Topic: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
danbohlen

Replies: 20
Views: 27201

PostForum: XANSYS   Posted: Thu Feb 23, 2012 5:52 am   Subject: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
Science fair projects are always more fun than "will my part work?" projects.



-----Original Message-----
From: xansys-bounces@xansys.org I have not done it, but seen the demo in Algor, of ...
  Topic: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
danbohlen

Replies: 20
Views: 27201

PostForum: XANSYS   Posted: Thu Feb 23, 2012 5:34 am   Subject: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
As long as the physics is well understood and methods and assumptions well understood - be fruitful and prosper!



-----Original Message-----
From: xansys-bounces@xansys.org I have not done it, but s ...
  Topic: [Xansys] sparse solver output
danbohlen

Replies: 11
Views: 13108

PostForum: XANSYS   Posted: Thu Feb 23, 2012 5:27 am   Subject: [Xansys] sparse solver output
Difficult to read all this. Maybe take some time and rewrite.

Basically,

1) Try pcg
2) Try sparse - use BSCOP option command if pre-13

Are your machines running 32 or 64 bits. If 32 that ma ...
  Topic: [Xansys] sparse solver output
danbohlen

Replies: 11
Views: 13108

PostForum: XANSYS   Posted: Thu Feb 23, 2012 5:21 am   Subject: [Xansys] sparse solver output
At 13 you don't need the command anymore. The sparse output will summarize how much memory the solution needs and what I could get....

Sounds like time for a new computer!

-----Original Message---- ...
  Topic: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
danbohlen

Replies: 20
Views: 27201

PostForum: XANSYS   Posted: Thu Feb 23, 2012 5:20 am   Subject: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
The test must be wrong! :-)

-----Original Message-----
From: xansys-bounces@xansys.org I have not done it, but seen the demo in Algor, of a hammer being
dropped. It bounced all over the place, du ...
  Topic: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
danbohlen

Replies: 20
Views: 27201

PostForum: XANSYS   Posted: Thu Feb 23, 2012 5:19 am   Subject: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
LMAO

I had a similar experience. Once for the Navy we had to prove our composite parts could withstand ice ball ingestion. Others in the group were busily analyzing their stuff with some new code. ...
  Topic: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
danbohlen

Replies: 20
Views: 27201

PostForum: XANSYS   Posted: Thu Feb 23, 2012 5:10 am   Subject: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
How do we prove ANY of the FEA stuff is right?? TESTING!!

-----Original Message-----
From: xansys-bounces@xansys.org I have not done it, but seen the demo in Algor, of a hammer being
dropped. It bo ...
  Topic: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
danbohlen

Replies: 20
Views: 27201

PostForum: XANSYS   Posted: Wed Feb 22, 2012 10:49 am   Subject: [Xansys] [FTT_SPAM] - Drop Test in Ansys Classic
Yep, when Ansys came out with the new elements they set out a demo .db with a square dropping down on a very soft trampoline. It was quite interesting to see the physics at work.....

-----Original ...
  Topic: [Xansys] warning : Contat elements status changes from non c
danbohlen

Replies: 2
Views: 10252

PostForum: XANSYS   Posted: Tue Feb 21, 2012 7:22 am   Subject: [Xansys] warning : Contat elements status changes from non c
Nonlinear convergence/nonconvergence is one of the biggest challenges. Expect to try a number of things and a few posts here to figure it out and solve it. (Unless you get lucky on the first try.

S ...
  Topic: [Xansys] sparse solver output
danbohlen

Replies: 11
Views: 13108

PostForum: XANSYS   Posted: Tue Feb 21, 2012 5:38 am   Subject: [Xansys] sparse solver output
What version of Ansys are you using. Per-Ansys 13 you need to use the BCSOPT command to tell the sparse solver to use the available memory. That has burned people here for years.


Dan Bohlen
Senio ...
  Topic: sparse solver output
danbohlen

Replies: 5
Views: 5261

PostForum: XANSYS   Posted: Mon Feb 20, 2012 5:14 am   Subject: [Xansys] sparse solver output
I'm not sure about "non-linear" problems (might depend what the nonlinearity is). I guess it is fair to say for linear static problems I have seen the pcg be better. For some non-linear I ...
  Topic: Determine when rubber glued to steel will tear away
danbohlen

Replies: 4
Views: 2561

PostForum: XANSYS   Posted: Sun Feb 19, 2012 5:56 am   Subject: [Xansys] Determine when rubber glued to steel will tear away
Yep, testing is the first thought that comes to mind. Then maybe see if you can approximate the behavior in Ansys. Problems like this are usually difficult due to the lack of materials data, modulu ...
  Topic: [Xansys] Rigid body movement with antype, static (RVE, perio
danbohlen

Replies: 0
Views: 1250

PostForum: XANSYS   Posted: Thu Feb 16, 2012 5:41 am   Subject: [Xansys] Rigid body movement with antype, static (RVE, perio
I don't believe you can do attachments here - most people use links to file online.

If you have displacement boundary conditions in all DOFs on both sides of the contact it should be stable.



Dan B ...
  Topic: [Xansys] Nlgeom,on in Workbench
danbohlen

Replies: 9
Views: 10865

PostForum: XANSYS   Posted: Thu Feb 16, 2012 5:11 am   Subject: [Xansys] Nlgeom,on in Workbench
What makes you think NLGEOM,ON is not set? I don't use WB, but does it have an output file? Checking in the GUI? Is there a moral equivalent of a CDWRITE - CDREAD in WB?

I DO know if you write it ...
  Topic: [Xansys] Nlgeom,on in Workbench
danbohlen

Replies: 9
Views: 10865

PostForum: XANSYS   Posted: Wed Feb 15, 2012 8:11 am   Subject: [Xansys] Nlgeom,on in Workbench
Could be a gui issue. I've seen it in the distant past in Ansys "APDL".

If you are at the solution phase - consider dumping the model out and running it in Ansys "APDL" (classic) ...
  Topic: [Xansys] Bisection in Nonlinear Analysis
danbohlen

Replies: 2
Views: 7024

PostForum: XANSYS   Posted: Tue Feb 14, 2012 4:58 am   Subject: [Xansys] Bisection in Nonlinear Analysis
What version of Ansys are you using? It seems like in older versions of Ansys you needed to have SOLCONtrol on to get bisecting to work. Of course that it bisected at all might indicate that might n ...
  Topic: Using a restart after each loadstep in an analysis
danbohlen

Replies: 3
Views: 2821

PostForum: XANSYS   Posted: Mon Feb 13, 2012 6:25 am   Subject: [Xansys] Using a restart after each loadstep in an analysis
How far along it did get before it stopped. What was it doing when it stopped? I shudder to suggest it - but you could cut and paste the last section of your output file.

My I ask if you are doing ...
  Topic: Friction modeling of Thermoplastic materials..
danbohlen

Replies: 5
Views: 4776

PostForum: XANSYS   Posted: Mon Feb 13, 2012 6:08 am   Subject: [Xansys] Friction modeling of Thermoplastic materials..
Perhaps getting measured data?


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, OH 45069
(NP2 Pod "B" 2nd floor desk #135) ...
  Topic: Using a restart after each loadstep in an analysis
danbohlen

Replies: 3
Views: 2821

PostForum: XANSYS   Posted: Fri Feb 10, 2012 6:11 am   Subject: [Xansys] Using a restart after each loadstep in an analysis
Hi,

Have you considered using substeps (ramping the "loads" on slowly) versus load steps? You should get the same result.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis ...
  Topic: [ANSYS WB 13.0] Apply loads in a toroidal coordinate system.
danbohlen

Replies: 6
Views: 8362

PostForum: XANSYS   Posted: Tue Feb 07, 2012 5:52 am   Subject: [Xansys] [ANSYS WB 13.0] Apply loads in a toroidal coordinat
Hmm, no torus coordinate system in Workbench?

Got "classic"? (new tag line)



-----Original Message-----
From: xansys-bounces@xansys.org I believe that the toroidal coordinate system in ...
  Topic: [ANSYS WB 13.0] Apply loads in a toroidal coordinate system.
danbohlen

Replies: 6
Views: 8362

PostForum: XANSYS   Posted: Tue Feb 07, 2012 5:34 am   Subject: [Xansys] [ANSYS WB 13.0] Apply loads in a toroidal coordinat
And if it doesn't exist you can always make a local "doughnut" coordinate system.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Che ...
  Topic: Interference fit-contact pressure, friction force & Torq
danbohlen

Replies: 11
Views: 13548

PostForum: XANSYS   Posted: Wed Feb 01, 2012 7:58 am   Subject: [Xansys] Interference fit-contact pressure,friction force &a
Random thought - you using large displacement (NLGEOM,ON) that can make the torque loading problematic....

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys ...
  Topic: Moving coordinate system in ANSYS
danbohlen

Replies: 24
Views: 34394

PostForum: XANSYS   Posted: Tue Jan 31, 2012 1:32 pm   Subject: [Xansys] R: [APDL] Error
One convergence trick is to impart a small displacement until you are sure the contacts are working and then turn off the displacements and put the loads on ...


Dan Bohlen
Senior Staff Engineer ...
  Topic: Interference fit-contact pressure, friction force & Torq
danbohlen

Replies: 11
Views: 13548

PostForum: XANSYS   Posted: Mon Jan 30, 2012 7:28 am   Subject: [Xansys] Interference fit-contact pressure,friction force &a
I guess I'd look at my last converged result and see how close things are to slipping. Could tried to restart from there with tiny steps. No guarantee Ansys will give you the textbook results.


D ...
  Topic: [XANSYS] Plasticity and capacity (and mesh density)
danbohlen

Replies: 7
Views: 8561

PostForum: XANSYS   Posted: Thu Jan 26, 2012 6:25 am   Subject: [Xansys] [XANSYS] Plasticity and capacity (and mesh density)
Just a few thoughts

Is this a purely academic question or do you have a real engineering situation you are trying to solve? If real world, you might want to describe the overall problem - there mig ...
  Topic: [Xansys] ansys command line
danbohlen

Replies: 7
Views: 7674

PostForum: XANSYS   Posted: Mon Jan 23, 2012 11:00 am   Subject: [Xansys] ansys command line
You just missed the knock-down drag-out on WB vs. Classic. Reminded me of the "Far Side" cartoon with a fight breaking out in a desert bar between folks who favored 2 hump camels versus 1 h ...
  Topic: [Xansys] *get for NLGEOM
danbohlen

Replies: 7
Views: 8594

PostForum: XANSYS   Posted: Fri Jan 20, 2012 8:40 am   Subject: [Xansys] *get for NLGEOM
Interesting question. We have a program here that reads the .rst file directly and we used to have to turn on a flag to signal whether NLGEOM,ON or OFF. So in one sense if it was there in the .rst I ...
  Topic: [XANSYS] Plasticity and capacity (and mesh density)
danbohlen

Replies: 7
Views: 8561

PostForum: XANSYS   Posted: Fri Jan 20, 2012 6:47 am   Subject: [Xansys] [XANSYS] Plasticity and capacity (and mesh density)
- random thoughts -

Sure it is purely a plasticity problem? When you use the word "tear" I start thinking fracture mechanics if it is cyclic or will you need to "kill" elements t ...
  Topic: [Xansys] Pressure mapping macro
danbohlen

Replies: 1
Views: 2799

PostForum: XANSYS   Posted: Thu Jan 19, 2012 2:40 pm   Subject: [Xansys] Pressure mapping macro
- An unsolicited testimonial -

It worked like a charm. The CAEI guys save the day again! They are a great ASD.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
638 ...
  Topic: Pressure mapping macro
danbohlen

Replies: 0
Views: 1152

PostForum: XANSYS   Posted: Thu Jan 19, 2012 9:55 am   Subject: Pressure mapping macro
HI Guys,

I know this one has been discussed before, but I guess I don’t know how to get into the XANSYS archives anymore.

A buddy of mine grabbed a macro off the internet somewhere at is w ...
  Topic: [Xansys] press fit in vibration shaker
danbohlen

Replies: 1
Views: 2287

PostForum: XANSYS   Posted: Thu Jan 19, 2012 7:09 am   Subject: [Xansys] press fit in vibration shaker
Just tossing this out there. Do the forced vibration analysis with the 2 parts "welded" together and maybe look at the loads generated (normal load and load down the direction if the pipe) ...
  Topic: [Xansys] ***SUSPECT*** Re: [WB] Want to select outer surface
danbohlen

Replies: 12
Views: 11596

PostForum: XANSYS   Posted: Tue Jan 10, 2012 5:25 am   Subject: [Xansys] ***SUSPECT*** Re: [WB] Want to select outer surface
Chris,

Spot on as usual below. I wonder if it is a generational gap or something else underlying with WB.

APDL is mostly based on Ansys "commands" and is structured to what John Swanson ( ...
  Topic: Cyclic symmetric analysis using WB 11
danbohlen

Replies: 9
Views: 10799

PostForum: XANSYS   Posted: Tue Jan 10, 2012 5:15 am   Subject: [Xansys] Cyclic symmetric analysis using WB 11
Sorry - I believed it was mostly for people asking questions.


Dan Formerxansyslistmiester Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft Engines
6380 Aviation Way
West Chester, ...
  Topic: Cyclic symmetric analysis using WB 11
danbohlen

Replies: 9
Views: 10799

PostForum: XANSYS   Posted: Mon Jan 09, 2012 12:51 pm   Subject: [Xansys] Cyclic symmetric analysis using WB 11
Thought the original post was for static structural analysis, not
modal....


-----Original Message-----
From: xansys-bounces@xansys.org On 09/01/2012 16:51, andreas.goumas wrote:
I am looking for a m ...
  Topic: [Xansys] ***SUSPECT*** Re: [WB] Want to select outer surface
danbohlen

Replies: 12
Views: 11596

PostForum: XANSYS   Posted: Mon Jan 09, 2012 9:50 am   Subject: [Xansys] ***SUSPECT*** Re: [WB] Want to select outer surface
Hi James,

Why do you claim - "I'm supposed to say that Workbench is great and
solves all my problems." Some one holding a gun to your head?

I think being critical of WB puts you with th ...
  Topic: Cyclic symmetric analysis using WB 11
danbohlen

Replies: 9
Views: 10799

PostForum: XANSYS   Posted: Mon Jan 09, 2012 9:48 am   Subject: [Xansys] Cyclic symmetric analysis using WB 11
Hi,

Not sure how to do this in WB, but in theory what you do is create a
sector of the model based on whatever the repeating feature is (like 20
blade slots) and couple the two cut sector faces.

Jus ...
  Topic: [WB] Want to select outer surfaces of body
danbohlen

Replies: 24
Views: 32250

PostForum: XANSYS   Posted: Mon Jan 09, 2012 5:55 am   Subject: [Xansys] [WB] Want to select outer surfaces of body
Or does WB have a "Log" file where you can do steps and the commands are
stored?

Learned a lot of the Ansys Programming Design Language (APDL not to be
confused with the name of ansys &quo ...
  Topic: [WB] Want to select outer surfaces of body
danbohlen

Replies: 24
Views: 32250

PostForum: XANSYS   Posted: Fri Jan 06, 2012 10:55 am   Subject: [Xansys] [WB] Want to select outer surfaces of body
Getting over the initial shock. Wiki'ed it. Sounds like it is a flavor
of javascript. Well, at least that's a common language (not like the
Ansys classic menu-ing language.

If I ever convert over ...
  Topic: [WB] Want to select outer surfaces of body
danbohlen

Replies: 24
Views: 32250

PostForum: XANSYS   Posted: Fri Jan 06, 2012 10:17 am   Subject: [Xansys] [WB] Want to select outer surfaces of body
Holy crap! What programming language is this? If this is the new APDL
for workbench - I think I'll stay in "classic" until I retire....



-----Original Message-----
From: xansys-bounces@x ...
  Topic: [MISC][STRUCT] Static Analyse of welded Shells
danbohlen

Replies: 6
Views: 6013

PostForum: XANSYS   Posted: Fri Jan 06, 2012 6:01 am   Subject: [Xansys] [MISC][STRUCT] Static Analyse of welded Shells
Ut-oh

You mentioned analyzing welds with FEA.

Expect a reply! :-)



-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of ravishankar.subbara ...
  Topic: [mapdl] mesh refining
danbohlen

Replies: 8
Views: 6908

PostForum: XANSYS   Posted: Fri Dec 30, 2011 6:11 am   Subject: [Xansys] [mapdl] mesh refining
Looks pretty good....

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of abid.khan
Sent: Friday, December 30, 2011 1:13 AM
To: xansys@xansys.or ...
  Topic: [mapdl] mesh refining
danbohlen

Replies: 8
Views: 6908

PostForum: XANSYS   Posted: Thu Dec 29, 2011 1:25 pm   Subject: [Xansys] [mapdl] mesh refining
What exactly are you trying to do here? Maybe you can sketch it up.

For one thing you can't have 3 elements connecting into one unless you
are doing some constraint equations.

I assume you are doinf ...
  Topic: [Xansys] [OT]Seasons Greetings
danbohlen

Replies: 3
Views: 4823

PostForum: XANSYS   Posted: Tue Dec 27, 2011 7:32 am   Subject: [Xansys] [OT]Seasons Greetings
Many thanks to PADT.

Many new members may not be aware of this, but the list used to be run off several other platforms what were never very good.


Dan Bohlen
Senior Staff Engineer, Military HPT ...
  Topic: [Xansys] [OT]Seasons Greetings
danbohlen

Replies: 3
Views: 4823

PostForum: XANSYS   Posted: Tue Dec 27, 2011 7:30 am   Subject: [Xansys] [OT]Seasons Greetings
Yes 3 cheers for the moderators - a thankless task

Hip-hip-hooray!
Hip-hip-hooray!
Hip-hip-hooray!

(OK I cut and pasted the last 2 hip-hips, but the sentiment was still
there...) :-)

Dan sogladiam ...
  Topic: [Xansys] Inertia relief considered
danbohlen

Replies: 6
Views: 5502

PostForum: XANSYS   Posted: Thu Dec 22, 2011 11:35 am   Subject: [Xansys] Inertia relief considered
Hi Chris,

We actually use IR when doing analysis of dynamics loads on our engine
carcass.

We get loads at different stations around the engine, so if we are
interested in a particular frame, we'll b ...
  Topic: [Xansys] R: R: Inertia relief considered
danbohlen

Replies: 4
Views: 5024

PostForum: XANSYS   Posted: Thu Dec 22, 2011 5:53 am   Subject: [Xansys] R: R: Inertia relief considered
Or Google files.

-----Original Message-----
From: xansys-bounces@xansys.org Wow! Can I just say how much I appreciate all these responses.
Not to rain on the parade, but inertia relief sounds like a ...
  Topic: [Xansys] R: R: Inertia relief considered
danbohlen

Replies: 4
Views: 5024

PostForum: XANSYS   Posted: Wed Dec 21, 2011 1:08 pm   Subject: [Xansys] R: R: Inertia relief considered
Dan.bohlen@ge.com if I can get a copy....

-----Original Message-----
From: xansys-bounces@xansys.org Wow! Can I just say how much I appreciate all these responses.
Not to rain on the parade, but in ...
  Topic: Do you have a need to measure interfacial surface contact pr
danbohlen

Replies: 0
Views: 1774

PostForum: XANSYS   Posted: Wed Dec 21, 2011 5:26 am   Subject: Do you have a need to measure interfacial surface contact pr
Take me off your list you spammer!

Ansys users unite – do no business with these engineering spammers!

From: Katlyn Cristovao Sent: Tuesday, December 20, 2011 5:39 PM
To: Bohlen, Dan (GE ...
  Topic: [Xansys] R: R: Inertia relief and submodels - addendum
danbohlen

Replies: 8
Views: 10867

PostForum: XANSYS   Posted: Mon Dec 19, 2011 12:42 pm   Subject: [Xansys] R: R: Inertia relief and submodels - addendum
Keith,

You mean redo the IR process again on the submodel, right?

Dan


Inertia Relief should work with submodels using cut-boundary
displacements. I believe that what you need to do is perform t ...
  Topic: workbench 12.1 command check
danbohlen

Replies: 5
Views: 6708

PostForum: XANSYS   Posted: Mon Dec 19, 2011 8:58 am   Subject: [Xansys] workbench 12.1 command check
Hi Dmitri,

The "Tokamak Project" isn't much info. You associated with a university
or company? What country are you in?

I personally don't use WORKBENCH, but the commands below look stra ...
  Topic: workbench 12.1 command check
danbohlen

Replies: 5
Views: 6708

PostForum: XANSYS   Posted: Mon Dec 19, 2011 6:33 am   Subject: [Xansys] workbench 12.1 command check
Not sure what the original question is you might want to repost it. Also is you attached a complete signature that might help.


Dan Bohlen
Senior Staff Engineer, Military HPT Analysis
GE Aircraft ...
  Topic: [Xansys] Inertia relief and submodels
danbohlen

Replies: 5
Views: 5132

PostForum: XANSYS   Posted: Fri Dec 16, 2011 12:15 pm   Subject: [Xansys] Inertia relief and submodels
Hi Phil,

Gap elements don't work with IRLF? Full model , submodel, or both?

Dan

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On Behalf Of Phil Vido ...
  Topic: [Xansys] Inertia relief and submodels
danbohlen

Replies: 5
Views: 5132

PostForum: XANSYS   Posted: Fri Dec 16, 2011 11:45 am   Subject: [Xansys] Inertia relief and submodels
Hi David,

We use inertia relief for are static structures under aircraft maneuver "G" loads and system dynamic vibratory loads. No expert in this, but we've used IR with models with contac ...
  Topic: [Xansys] [OTHER] Is ANSYS a Productive Tool for MechanicalEn
danbohlen

Replies: 3
Views: 4044

PostForum: XANSYS   Posted: Thu Dec 15, 2011 7:29 am   Subject: [Xansys] [OTHER] Is ANSYS a Productive Tool for MechanicalEn
There used to be a product they sold (Mechanical?) that was supposed to be the easy interface for basic work. Sounds like you all are getting into more complex stuff than that product could have han ...
  Topic: [Xansys] [OTHER] Is ANSYS a Productive Tool for MechanicalEn
danbohlen

Replies: 3
Views: 4044

PostForum: XANSYS   Posted: Wed Dec 14, 2011 12:56 pm   Subject: [Xansys] [OTHER] Is ANSYS a Productive Tool for MechanicalEn
Great article! With a few exceptions....

" Too narrow a job description produces another FEA pitfall. Even when
there are dedicated personnel for design analysis, the FEA-specialist
job descrip ...
  Topic: [Xansys] [OTHER] Is ANSYS a Productive Tool for Mechanical E
danbohlen

Replies: 19
Views: 21833

PostForum: XANSYS   Posted: Wed Dec 14, 2011 10:23 am   Subject: [Xansys] [OTHER] Is ANSYS a Productive Tool for Mechanical E
If your engineer was using Ansys daily - it would probably be worth the
investment in training.


-----Original Message-----
From: xansys-bounces@xansys.org It just doesn't appear that putting ANSYS i ...
  Topic: [Xansys] [OTHER] Is ANSYS a Productive Tool for Mechanical E
danbohlen

Replies: 19
Views: 21833

PostForum: XANSYS   Posted: Wed Dec 14, 2011 10:21 am   Subject: [Xansys] [OTHER] Is ANSYS a Productive Tool for Mechanical E
Daily vocab:

What is a " Liebherr"? I googled it and saw a lot of refrigerators.
Tried Google translate guessing it was German with no luck. Second
question is it playable on "WORDS ...
  Topic: [Xansys] [OTHER] Is ANSYS a Productive Tool for Mechanical E
danbohlen

Replies: 19
Views: 21833

PostForum: XANSYS   Posted: Tue Dec 13, 2011 1:57 pm   Subject: [Xansys] [OTHER] Is ANSYS a Productive Tool for Mechanical E
I'd say with any software there's a certain amount of learning curve needed to do even the most basic work - and a certain amount of use to stay proficient at it. I am a regular user of what was for ...
  Topic: multiple point mass
danbohlen

Replies: 3
Views: 4439

PostForum: XANSYS   Posted: Tue Dec 13, 2011 1:04 pm   Subject: [Xansys] multiple point mass
Might need to break your bean into 2 or 3 beams and could put point
masses on the nodes....

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of ...
  Topic: [APDL] READ input from
danbohlen

Replies: 5
Views: 7118

PostForum: XANSYS   Posted: Thu Dec 08, 2011 7:55 am   Subject: [Xansys] [APDL] READ input from
Hope it is just your message that has character problems. Not sure Ansys recognizes tildes over "A's" or the copywrite symbol ("C" inside a circle)

Dan

-----Original Message--- ...
  Topic: Running different load cases using load step option
danbohlen

Replies: 3
Views: 2415

PostForum: XANSYS   Posted: Tue Dec 06, 2011 6:48 am   Subject: [Xansys] Running different load cases using load step option
Who are you????


-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of girishkumar.panchal
Sent: Tuesday, December 06, 2011 8:23 AM
To: xansys@xan ...
  Topic: [Xansys] FOCUS Article
danbohlen

Replies: 1
Views: 3615

PostForum: XANSYS   Posted: Mon Nov 28, 2011 1:35 pm   Subject: [Xansys] FOCUS Article
OOH... my chance to be published!

(Unless Eric emailed this out to the wrong address.....)

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.org] On
Behalf Of ...
  Topic: Visualizing external results in ANSYS
danbohlen

Replies: 4
Views: 7782

PostForum: XANSYS   Posted: Tue Nov 22, 2011 1:06 pm   Subject: [Xansys] [FTT_SPAM] - Re: Visualizing external results in AN
We've played this game before and tend to reverse the order. Make the low lives "red".

Dan

-----Original Message-----
From: xansys-bounces@xansys.org [mailto:xansys-bounces@xansys.or ...
  Topic: [Xansys] Workbench Opening Modules at Snail Pace. Anyoneenco
danbohlen

Replies: 1
Views: 1960

PostForum: XANSYS   Posted: Wed Nov 02, 2011 4:30 am   Subject: [Xansys] Workbench Opening Modules at Snail Pace. Anyoneenco
Maybe you could propose to your IT folks to do it at 2 am.....


-----Ori