offset line

[sachin.awasare]

Dear all,
Is there any command or macro to offset lines/ spline in ANSYS mechanical ?
If anybody has information on it ,kindly share.
Waiting for reply

Regards,
SACHIN AWASARE
IRCLASS,
Mumbai

[Martin Liddle]

On 19/06/2015 10:50, sachin.awasare wrote:

[sachin.awasare]

In mechanical APDL

Regards,
Sachin awasare,
Indian register of shipping ,
Mumbai

[daniel.diaz]

Hello,

The following link has a couple of ideas (older discussion on getting line normals):
http://www.xansys.org/forum/viewtopic.php?p=75493&sid=0ce9aa3745b020be25d732cfd1d6ae68

Ian's suggestion in that thread is a good starting point. I would take it a bit further by dividing the line into multiple parts and getting the normal direction at each of those.

At each point, use LSX[Y,Z](lnum,frac) to get one vector and use LX[Y,Z](lnum,frac+...) - LX[Y,Z](lnum,frac) to get another vector. Then, get the cross product of those two vectors to get the plane normal vector. Next, cross the plane normal vector with the LSX[Y,Z] vector to get your offset direction vector.

One problem with this method is that it will not work with straight lines because the 3 points used in your two original vectors are colinear. Another is that the plane normal and offset vectors at each part of the line could be flipped ~180 degrees from a previous plane normal and offset vector pair due to how your original 2 vectors at each part of the line are defined.

Best of luck,
_________________
Dan Diaz
Belcan Engineeering

[j-rgen.humt]

The lgen command (Prep7 -> Modeling -> Move/Modify OR Copy) allows to offset lines along a specified vector.
You can either move the line along this vector, or generate a copy of existing lines in the direction of that vector.

Not sure whether this is what you want.

Regards,

Juergen Humt
Siemens Fossile Power


-----Ursprüngliche Nachricht-----
Von: Xansys [mailto:xansys-bounces@xansys.org] Im Auftrag von sachin.awasare
Gesendet: Freitag, 19. Juni 2015 11:51
An: xansys@xansys.org
Betreff: [Xansys] offset line

Dear all,
Is there any command or macro to offset lines/ spline in ANSYS mechanical ?
If anybody has information on it ,kindly share.
Waiting for reply

Regards,
SACHIN AWASARE
IRCLASS,
Mumbai






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[sachin.awasare]

Dear Juergen Humt,
thank you very much for your reply but option that you have suggested will copy line in one direction.
I am interested to offset curve,same as we are doing in Auto Cad Offset command

Regards,
Sachin awasare,
Indian register of shipping ,
Mumbai