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Sound Propagation through glass on concrete with PML layer
Posted 02.10.2017, 11:34 GMT-4 Acoustics & Vibrations 0 Replies
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Hello, Im considering COMSOL Multiphysics to simulate a sound measurement scenario with a round speaker that is 1.9 meters straight above the center of a 0.9 x 0.9 x 0.008 m glass plate. This glass plate is suspended horizontally above a concrete floor. What would be the recommended way to simulate this, if one would like to know the difference in dB directly above and under the glass plate.
My idea was to simulate the infinite surroundings by way of a PML sphere around the situation to absorb all outgoing soundwaves and minimise reflections. To simulate the sound source which is broadcasting a range frequencies of 30 Hz - 300 Hz, I would use a surface boundary condition on a small sphere with a diameter of 0.1 m. Materials etc would be added for the glass plate and concrete.
If anyone knows of an earlier similar case, has feedback on my idea or has suggestions on how to simulate the problem please let me know.
greetings, Thomas
-------------------TBI
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