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Topology optimization for resonator membrane
Posted Mar 19, 2024, 11:07 p.m. EDT Modeling Tools & Definitions, Studies & Solvers, Structural Mechanics Version 6.2 0 Replies
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Hello everyone,
I have been trying to get a topology optimization to work for my model. I am using the Membrane Interface and want to use topology optimization with an eigenfrequency study to optimize for a high quality factor. Basically I want Comsol to shape the membrane between the outer ring attached to substrate and a central defect. The attached png highlights the area I want to change the geometry for.
The study runs but ends just after one cycle and I can't figure out what exactly I am missing.
Things I suspect:
I am trying to use a density based optimization here whereas the membrane is like a 2D boundary so maybe that doesn't work somehow
I might have to somehow include a stationary study step but I wouldn't be sure how that can be tied into the optimization. I read that the Helmholtz filter in the density model might need a stationary solver.
I would be very grateful for any pointers.
Sincerely, Benedikt Gregor
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Hello Benedikt Gregor
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