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 The information provided may be out of date.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.
Piezoelectric devices and associated losses
Posted 2012年8月1日 GMT-4 05:32 MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Structural Mechanics Version 4.1 0 Replies
Please login with a confirmed email address before reporting spam
I am working on a model for a piezoelectric transducer and i have some questions regarding the loss calculations.
I used the built in material PZT-5A and so all the values are already filled in, except all the loss matrices are empty. I was wanting to create a lossless model at first, however the results that I get seem to take into account the apparent losses. Is it because the material properties already have these values stored somewhere? if yes where should I look?
Or is it the equations that COMSOL uses that incorporate the losses by themselves. In this case as well where can I look for and eventually change these values?
I went through the piezoelectric models in the model library as well, and these too have empty loss matrices but the models give realistic results incorporating losses.
Could someone please shed some light on this matter.
Thank you very much.
Hello Bruno Barbet
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.