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Spherical Acoustic Resonance Frequencies of a Basketball
Posted Feb 17, 2022, 12:06 p.m. EST Acoustics & Vibrations, Results & Visualization Version 6.0 1 Reply
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https://www.acs.psu.edu/drussell/Publications/Basketball.pdf I'm trying to recreate the results of this paper in COMSOL and I'm wondering what general model setup I should use. Essentially I'm trying to simulate smacking a basketball and finding the spherical acoustic frequencies. My current isetup is I have a thin sphere made of a solid material filled with air and surrounded by air. The air inside the ball has a much higher pressure than the air on the outside. I then use the solid mechanics and acoustic pressure frequency domain modules to set up my initial conditions. So I guess my question is what other modules should I be using and what studies should i use to replicate the mode shapes and resonance frequencies found in the study?
Attached below is my current setup
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You should start out with pure acoustics, and investigate the modes and compare with the paper, before including structural mechanics.
-------------------René Christensen, PhD
Acculution ApS
www.acculution.com
info@acculution.com