Menu

Discussion Forum

New Discussion
查找

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 The information provided may be out of date.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.

TED in MEMS resonator

Posted 2012年6月20日 GMT-4 09:41 MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Structural Mechanics Version 4.2a 2 Replies

Ruzbeh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi

I am new to COMSOL. I was trying the Thermoelastic damping in MEMS resonator model [it was done on 3.5 but my version is 4.2a] provided by the comsol. Although I get the similar eigenfrequencies but not getting any Q-factor [shows error] value nor the temperature distribution correctly. How to evaluate the Q factor for TED in COMSOL? Also can some please explain the TED modelling in comsol?

Any help on TED would be appreciated. Thanks
2 Replies Last Post 2012年11月16日 GMT-5 12:41
Ruzbeh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2012年6月21日 GMT-4 08:19
Can someone please help me defining the atttached equation as a heat source (Q) in COMSOL? How do I write it in user defined Q source?
Can someone please help me defining the atttached equation as a heat source (Q) in COMSOL? How do I write it in user defined Q source?

Attachments:

Ruzbeh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2012年11月16日 GMT-5 12:41
Refering to this model www.uk.comsol.com/showroom/gallery/1439/

why in this model strain reference temperature is set to zero? And the thermal strain is assumed as alpha*T
instead of alpha*ΔT. Please explain

ΔT = T - Tref
Refering to this model http://www.uk.comsol.com/showroom/gallery/1439/ why in this model strain reference temperature is set to zero? And the thermal strain is assumed as alpha*T instead of alpha*ΔT. Please explain ΔT = T - Tref

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