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The Acoustic-Structure Boundary Multiphysics Node says all boundaries in my model are "not applicable"
Posted 21 mar 2022, 17:16 GMT-4 Fluid & Heat, Acoustics & Vibrations, MEMS & Piezoelectric Devices Version 5.6 1 Reply
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The issue is as the title says. I am trying to model the modes and eigenfrequencies of a thin membrane with fixed sides in water. I had no problem getting the model to work in vaccuum (i.e just the membrane physics node) but now I am having issues getting the pressure acoustics, frequency domain node and the membrane node to be properly recognized by the Acoustic-Structure Boundary node.
Both the membrane and pressure acoustics nodes are recognized in the drop down menus for selecting "structure" and "acoustics" in the multiphysics node, however all of the boundaries in my model are "not applicable" so I cannot make any selections in the multiphysics node.
I have uploaded a copy of my model for convenience.
Thanks!
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Hello Nicolas,
In the Geometry branch, you seem to have switched from "Form Union" to "Form Assembly". If you revert to "Form Union", boundary 6, which is your membrane, is then applicable. See the User's Guide for the Acoustics Module, version 6.0, page 784 and following for more information on that coupling.
Best,
Jeff
-------------------Jeff Hiller