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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Elctromechanics Mode in v4.3

Posted Jul 31, 2012, 6:54 p.m. EDT MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Mesh Version 4.3 0 Replies

Yemin Tang
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Hi,

I am trying to understand this example,
www.comsol.com/showroom/gallery/444/

The 3.5a version and 4.3 version look quite different.

I have several questions about the 4.3 version that has the Electromechanics mode,

1) Why do we need to separately define block2 and block3? since outside the cantilever its all air

2)The symmetric boundary5, what is that for? Why can't we just assign the other side “air”?

3) About Prescribed Mesh Displacement:
a) when we clear/check the prescribed z displacement, what does that mean?
b) Since “Prescribed Mesh Displacement2 “ and “Prescribed Mesh Displacement3 “ do the same thing, just plying to different boundaries, why can’t we just combine them?

Thanks in advance.

Best,
Yemin
0 Replies Last Post Jul 31, 2012, 6:54 p.m. EDT
COMSOL Moderator

Hello Yemin Tang

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