Deformation of mode shape of solid mechanics eigenfrequency calculation

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Hi, I want to calculate the mode shape of the acoustic mode of the waveguide with certain geometry using solid mechanics module. After the calculation, a deformation node was automatically generated with mode shape making the mode profile look a little bit strange. I found the explanation of this deformation node and I just want to make sure that you can only get the actually mode distribution if you set the scale factor to be 1.

Thank you.



1 Reply Last Post Nov 6, 2023, 3:02 a.m. EST
Henrik Sönnerlind COMSOL Employee

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Posted: 6 months ago Nov 6, 2023, 3:02 a.m. EST

As the amplitude of an eigenmode is arbitrary, you can set the deformation scale to anything that provides a nice visualization. The actual scaling of the eigenmode is controlled in the Output section in the settings for the Eigenvalue Solver node.

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Henrik Sönnerlind
COMSOL
As the amplitude of an eigenmode is arbitrary, you can set the deformation scale to anything that provides a nice visualization. The actual scaling of the eigenmode is controlled in the *Output* section in the settings for the *Eigenvalue Solver* node.

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