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[Xansys] Natural / Isoperimetric coordinates of a point in a
 
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fayaz.sofi
User


Joined: 29 Dec 2014
Posts: 32

PostPosted: Thu Jun 04, 2015 12:32 pm  Reply with quote

Dear Members,

I am intending to find isoperimetric coordinates (r,s,t) and the element number that contains a point having known coordinates in active coordinate system as (X,Y,Z).

Using undocumented command below I am able to do it, however same command does not work when the active coordinate system is changed to a different one and using accordingly new coordinates (x',y',z') of the same point.

I request is there any other way in ANSYS to solve this issue other than using Jacobian Matrix and scripting by basic formulas of book.

*MOPER,Eloc(1,1),XYZ(1,1),INTP,Elem(1)
where:
*dim,XYZ,array,nPts,3
*dim,Elem,array,nPts
*dim,Eloc,array,nPts,3

Thanking you,

Sincerely,

Fayaz Sofi

(Graduate Student : University of Nebraska - Lincoln)
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ian.prentice
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Joined: 21 Oct 2008
Posts: 115

PostPosted: Thu Jun 04, 2015 1:42 pm  Reply with quote

Use *voper,,,global
To transform your local coordinated to global before using *MOPER

Ian
GEAE

-----Original Message-----
From: Xansys [mailto:xansys-bounces@xansys.org] On Behalf Of Fayaz Sofi
Sent: Thursday, June 04, 2015 3:33 PM
To: ANSYS User Discussion List
Subject: [Xansys] Natural / Isoperimetric coordinates of a point in an element

Dear Members,

I am intending to find isoperimetric coordinates (r,s,t) and the element number that contains a point having known coordinates in active coordinate system as (X,Y,Z).

Using undocumented command below I am able to do it, however same command does not work when the active coordinate system is changed to a different one and using accordingly new coordinates (x',y',z') of the same point.

I request is there any other way in ANSYS to solve this issue other than using Jacobian Matrix and scripting by basic formulas of book.

*MOPER,Eloc(1,1),XYZ(1,1),INTP,Elem(1)
where:
*dim,XYZ,array,nPts,3
*dim,Elem,array,nPts
*dim,Eloc,array,nPts,3

Thanking you,

Sincerely,

Fayaz Sofi

(Graduate Student : University of Nebraska - Lincoln)
+-------------------------------------------------------------+
| XANSYS web - www.xansys.org/forum |
| The Online Community for users of ANSYS, Inc. Software |
| Hosted by PADT - www.padtinc.com |
| Send administrative requests to xansys-mod@tynecomp.co.uk |
+-------------------------------------------------------------+
+-------------------------------------------------------------+
| XANSYS web - www.xansys.org/forum |
| The Online Community for users of ANSYS, Inc. Software |
| Hosted by PADT - www.padtinc.com |
| Send administrative requests to xansys-mod@tynecomp.co.uk |
+-------------------------------------------------------------+

Post generated using Mail2Forum (http://www.mail2forum.com)
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