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Optimization of selection of the right mechanical mode

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Dear all,

I would like to know how to select one specific mechanical eigenfrequency in an optimized manner. I simulate a 3D structure so too many modes are close to the one I'm interested in.

What I usually do is to compute tens of frequency around a theoretical eigenfrequency value. Then I MANUALLY select the mode I am looking for.

I found a geometrical criteria to select my mode (integrating a function related with the different components of the displacement over an specific surface of my structure) but I don't know if it is possible to implement it in a way, in which Comsol only give me as a solution the eigenfrequency I want.

Thank you for you help.

1 Reply Last Post Sep 21, 2016, 7:02 p.m. EDT
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Hello Pierre Allain

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Posted: 8 years ago Sep 21, 2016, 7:02 p.m. EDT
This is a helpful blog post. Use the "with" and "at" operators.

www.comsol.com/blogs/solution-joining-parametric-eigenfrequency-time-dependent-problems/
This is a helpful blog post. Use the "with" and "at" operators. https://www.comsol.com/blogs/solution-joining-parametric-eigenfrequency-time-dependent-problems/

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