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Question about the acoustic_solid interaction

Posted May 24, 2010, 8:25 p.m. EDT 0 Replies

Kyo Lee
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I use COMSOL 3.5a to calculate the band structure of 2D system constructed by Solid embeded in Fluid, just like the attach file model.jpeg. I used the free and fulid loads in the solid boundary, and strucure accleration boundary in the fulid boundary. The results show that there are some zero eigenvalues in the band structure, but the other eigenvalue is excellent.

I found when I use the fixed and fluid loads boundary in the solid, the zero eigenvalue disappear, but the other eigenvalue is wrong.

The band strutrure is also in the attach file named BG.jpeg.

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0 Replies Last Post May 24, 2010, 8:25 p.m. EDT
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Hello Kyo Lee

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