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Old 7th December 2007, 04:15 PM   #1
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Default Simulating the membrane

Has anyone simulated the behaviour of a membrane with for example finite element analysis?

I like to do so. Any software packages out there (preferable open source) that can do the job? Or do I have to write my own?
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Old 10th December 2007, 06:14 PM   #2
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Hi,

take a look at

http://www.freebyte.com/cad/fea.htm

Harry
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Old 26th March 2010, 11:57 AM   #3
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Quote:
Originally Posted by arend-jan View Post
Has anyone simulated the behaviour of a membrane with for example finite element analysis?

I like to do so. Any software packages out there (preferable open source) that can do the job? Or do I have to write my own?
The equivalent air mass being added to membrane mass being significant, you will need 3D finite element analysis. Which makes it more complex.

I have started a more simple approach, a simple excel sheet, with this unique target: compute the resonance frequency.
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Old 27th March 2010, 01:20 AM   #4
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falstad.com might have what your looking for.jer
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Old 27th March 2010, 10:53 AM   #5
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Quote:
Originally Posted by geraldfryjr View Post
falstad.com might have what your looking for.jer
Indeed the membrane simulation is interesting (http://www.falstad.com/membrane/).

This corresponds to:
u(x, y, t) = Sum on m ( Sum on n ( Cm,n * sin(√(m^2 + n^2)ct) * sin(mx) * sin(ny) ) )
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Old 27th March 2010, 11:41 AM   #6
oublie is offline oublie  United Kingdom
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This might help you

Electrostatic Loudspeaker (ESL) Simulator
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Old 27th March 2010, 05:08 PM   #7
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oublie,thanks for that link. I had found it a while back ,then I lost it and couldn't find it again. jer
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