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.
Displacement Error!
Posted 1 dic 2015, 06:29 GMT-5 MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Geometry, Structural Mechanics Version 5.0 1 Reply
Please login with a confirmed email address before reporting spam
Hi everyone, I've just started to use COMSOL for the study of a simple cantilever beam and I'm facing some problems while calculating the eigenfrequencies and the frequency-response. I use the 3D MEMS Module>Solid, Stress-Strain. I create a 300e-6, 50e-6, 5e-6 box. From the Sub-domain menu in Physics I select the default settings for Silicon and from the boundary settings I'm fixing the face 1. In properties I select "large deformation" and "eigenfrequency". Then I let COMSOL solve the problem, and here appears the first issue: I get an apparently good resonant frequency (67Khz) but the z displacement gives 3.37m !!! As I'm a beginner I have a lot of other question, but for the moment I really need help on this specific issues... Thanks...
Attachments:
1 Reply Last Post 1 dic 2015, 07:18 GMT-5
Please login with a confirmed email address before reporting spam
Posted:
9 years ago
Hi,
There are several threads about this, for example
www.comsol.com/community/forums/general/thread/37955
For more details, see the section 'Eigenfrequency Analysis' in the structural mechanics documentation.
Regards,
Henrik
There are several threads about this, for example
www.comsol.com/community/forums/general/thread/37955
For more details, see the section 'Eigenfrequency Analysis' in the structural mechanics documentation.
Regards,
Henrik