Menu

Discussion Forum

New Discussion
Filtrer

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Form Union and Form Assembly Problem with Imported Geometry

Posted 10 mars 2018, 11:28 UTC−5 Geometry, Modeling Tools & Definitions, Results & Visualization Version 5.3 2 Replies

beraicli
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi,

I am having trouble in forming union and assembly when I import my geometry outside made in Solidworks or Catia.

The problem is that when I use "Form Union": - Error in parameter domain topological analysis.

or for "Form Assembly": - Pairs generated with simplifed method. The standard method failed for the provided repair tolerance.

May these occur because of problematic geometry imported from other software, or do these error indicate a lack in my COMSOL knowledge?

Thanks in advance,

Bera

-------------------
Bera
2 Replies Last Post 14 mars 2018, 16:22 UTC−4
Jim Freels mechanical side of nuclear engineering, multiphysics analysis, COMSOL specialist
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 8 years ago 14 mars 2018, 13:54 UTC−4

Depends on a lot of factors; predominantly how complex the geometry is. Have you tried a simpler geometry first to make sure that the import process is working correctly for you ? Do you have the actual model file that we can look at that gives you the problem ? Have you tried tweaking the tolerance levels on the options when you import ?

-------------------
James D. Freels, Ph.D., P.E.
Depends on a lot of factors; predominantly how complex the geometry is. Have you tried a simpler geometry first to make sure that the import process is working correctly for you ? Do you have the actual model file that we can look at that gives you the problem ? Have you tried tweaking the tolerance levels on the options when you import ?
beraicli
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 8 years ago 14 mars 2018, 16:22 UTC−4

Hi Jim,

Thanks for reply. The model, in general, does not belong to me so I cannot share it. For better follow-up for other users, however, I want to emphasize two points.

The geometry I have is a basic one, so I do not think the problem is complexity for my case. I assume the export problems may result in problematic surface on my geometry, which is a problem of CAD software. Recently, I created similar geometry in COMSOL and I succeeded to form an assembly out of it.

Second point is that when I adjust the tolerance levels, warnings keep coming for CAD exported geometry. I will make sure the CAD model is right and will post here the results for others who may need so.

Thank you again,

Bera

-------------------
Bera
Hi Jim, Thanks for reply. The model, in general, does not belong to me so I cannot share it. For better follow-up for other users, however, I want to emphasize two points. The geometry I have is a basic one, so I do not think the problem is complexity for my case. I assume the export problems may result in problematic surface on my geometry, which is a problem of CAD software. Recently, I created similar geometry in COMSOL and I succeeded to form an assembly out of it. Second point is that when I adjust the tolerance levels, warnings keep coming for CAD exported geometry. I will make sure the CAD model is right and will post here the results for others who may need so. Thank you again, Bera

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content