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shell-beam vs solid for eigenanalysis

Posted Nov 26, 2022, 12:25 a.m. EST Version 6.1 2 Replies

Panson Poon
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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 Dec 1, 2022, 9:07 p.m. EST
Henrik Sönnerlind COMSOL Employee

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Posted: 2 years ago Nov 28, 2022, 7:19 a.m. EST

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.
Panson Poon
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Posted: 2 years ago Dec 1, 2022, 9:07 p.m. EST

Thank you.

Thank you.

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