Menu

Discussion Forum

New Discussion
Filtrer

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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.

A simple question for COMSOL v3.5a

Posted 22 avr. 2013, 10:54 UTC−4 RF & Microwave Engineering Version 3.5a 0 Replies

Zhangxian Deng
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello,

I am now trying to use the femlin() in COMSOL v3.5a. According to the documentation, [Ke,Le,null,ud] = femlin(fem);
Ke and Le are the stiffness matrix and load vector. null is the matrix represents the transformation between constraint and unconstraint system. But what is ud?

u = u0 + Ke/Le + ud. Is it the rigid body displacement?

Thanks

Dan
0 Replies Last Post 22 avr. 2013, 10:54 UTC−4
COMSOL Moderator

Hello Zhangxian Deng

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

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