Artefacts In Total Radiated Power Spectrum Of A Piezoelectric Transducer

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Hello everyone!

I have the following question/problem:

I am currently modelling a piezoelectric transducer based on the COMSOL example "Piezoelectric Tonpilz Transducer with a Prestressed Bolt". I have made some modifications to the geometry and material, but the overall concept is still the same.

I have noticed that after making some geometric changes, artefacts/spikes appear in the Total Radiated Power Spectrum (see figures). Has anyone observed similar behavior, or can anyone explain what might be causing this?

Thanks!

Best, Ronja



1 Reply Last Post 28.01.2026, 07:52 GMT-5
Henrik Sönnerlind COMSOL Employee

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Posted: 3 hours ago 28.01.2026, 07:52 GMT-5

Do you have the possibility to upload one of your problematic models? I think your chances of getting a good answer would be much better then.

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Henrik Sönnerlind
COMSOL
Do you have the possibility to upload one of your problematic models? I think your chances of getting a good answer would be much better then.

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