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Displacement Error!
Posted Dec 1, 2015, 6:29 a.m. EST MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Geometry, Structural Mechanics Version 5.0 1 Reply
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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...
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1 Reply Last Post Dec 1, 2015, 7:18 a.m. EST
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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