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.

coupling Helmholtz equation and Mindlin plates

Please login with a confirmed email address before reporting spam

I'm trying to simulate a hollow cube (1 m x 1 m) consisting of Mindlin plates. The plates are not equally thick. I tried it with the same kind of approach as in the example of a tube sealed with a vibrating membrane. Everything works fine if I have just one elastic face and others are rigid. When I created another geometry with a plate and tried to couple it the same way as the first one Comsol solved the Eigenfrequencies, but the second plate had no effect on the pressure inside the cube. I named the extrusion variables of the second plate as

Name Expression
w2 w
w2tt wtt

Is this wrong?

Is there a simpler way to couple several geometries?


Thanks

Pekka Makkonen

0 Replies Last Post Aug 3, 2009, 4:10 a.m. EDT
COMSOL Moderator

Hello pekka makkonen

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.