Menu

Discussion Forum

New Discussion
Filter

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 The information provided may be out of date.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.

3D Coupled Pizeo Acoustic Transient Analysis

Posted Jan 13, 2011, 8:10 a.m. EST MEMS & Nanotechnology, Acoustics & Vibrations, MEMS & Piezoelectric Devices Version 3.5a 0 Replies

Stuart Brodie
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi,

I'm trying to run a 3D transient simulation where I couple a piezoelectric substrate to a fluid medium on top to analyze the acoustic wave propagation. I’ve used the piezo-acoustic transducer 2D model (1477) as a reference and can simulate the displacement of the piezo-substrate but I’m not sure how to couple the acceleration across the boundary. In the 2D model this is accomplished by using the w_tt variable(the second order time derivative of the structural displacement). Unfortunately I can’t find an equivalent factor to use for the piezo solid, I could write my own derivative to calculate the acceleration but I’m not sure how to code this in comsol.
Anybody got any suggestions?

Thanks,

Stuart
0 Replies Last Post Jan 13, 2011, 8:10 a.m. EST
COMSOL Moderator

Hello Stuart Brodie

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