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Resonant Transducer Damping with Acoustic Load
Posted 2013年6月14日 GMT-4 18:10 MEMS & Nanotechnology, Acoustics & Vibrations, MEMS & Piezoelectric Devices, Structural Mechanics Version 4.3a 0 Replies
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I am trying to understand the effect of mechanical load on the resonant characteristics of a piezoelectric transducer. For that I basically take a rod of PZT-5H. I applied a voltage difference between two ends of the rod. I also put two materials in contact with two ends of the PZT-5H rod. I want to see how the resonant frequency and the quality factor changes as this two load material changes. As a simulation, I do a frequency analysis over a frequency range and I look for the displacement of the center of the top surface of the PZT-5H rod. I see a good resonance. For different materials I see small changes in the resonant frequency and peak displacement. However, I think my system is quite ideal now. My question is how can I add nonidealities to the system like damping or losses?
Thanks for any replies
Hello Omer Ozdemir
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