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shell-beam vs solid for eigenanalysis

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I created a table based on using either solid interface or shell-beam interface. Bottom boundaries/points of the solid legs/beams are fixed.

I expect both should result in closely agreed mode frequencies. However, the first and second mode frequencies are considerably different.

Is there anything wrong in the model?



2 Replies Last Post 2022年12月1日 GMT-5 21:07
Henrik Sönnerlind COMSOL Employee

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Posted: 2 years ago 2022年11月28日 GMT-5 07:19

The setting for Connected region in Shell-Beam Connection is wrong. Try Distance (automatic) instead.

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Henrik Sönnerlind
COMSOL
The setting for *Connected region* in *Shell-Beam Connection* is wrong. Try *Distance (automatic)* instead.

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Posted: 2 years ago 2022年12月1日 GMT-5 21:07

Thank you.

Thank you.

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