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piezoelectric speakers
Posted 11 ott 2015, 21:54 GMT-4 MEMS & Nanotechnology, Piezoelectric Devices 0 Replies
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My final target is to simulate the sound pressure level placed above some distance above the speaker in frequency ranging from 100Hz to 20kHz.
To achieve this, I would like to do below step by step,
First, regardless of the acoustic part, how to simulate the harmonic analysis of a bi-morph piezoelectric actuator. To be more detailed, the model is a three-layers composite plate, top and bottom layers
are made by piezoelectric ceramic, the middle layer is made by brass. By driving the piezoelectric plate with sinusoidal voltage with constant amplitude but various frequency ranging from 100Hz to 20kHz,
what does the frequency response/transfer function of displacement at the center looks like?
The followup step is stepping into the acoustic performance. Under above structure, consider the piezoelectric composite plate as the acoustic source, what is the sound pressure level at a specific location above the plate.
It would be very appreciated if you can point me the online examples that I can reference to.
Thanks a lot.
Hello Chi Hou Lei
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