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coupling Helmholtz equation and Mindlin plates

Posted 3 août 2009, 04:10 UTC−4 0 Replies

pekka makkonen
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I'm trying to simulate a hollow cube (1 m x 1 m) consisting of Mindlin plates. The plates are not equally thick. I tried it with the same kind of approach as in the example of a tube sealed with a vibrating membrane. Everything works fine if I have just one elastic face and others are rigid. When I created another geometry with a plate and tried to couple it the same way as the first one Comsol solved the Eigenfrequencies, but the second plate had no effect on the pressure inside the cube. I named the extrusion variables of the second plate as

Name Expression
w2 w
w2tt wtt

Is this wrong?

Is there a simpler way to couple several geometries?


Thanks

Pekka Makkonen
0 Replies Last Post 3 août 2009, 04:10 UTC−4
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Hello pekka makkonen

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