Thickness-Optimization of Piezoceramic Transducers for Energy Transfer
Keyword(s):
Abstract For the ultrasonic travelling wave motor, the energy-based definition of the electromechanical coupling factor (EMCF) is utilized to adapt the thickness of the piezoceramic layer, which is bonded to the stator of the motor, for maximal energy transfer. A Bernoulli-Euler model for the electromechanical field variables is used to derive the equations of motion and to determine the EMCF for a steady-state solution. The EMCF, depending on the thickness of the piezoceramic layer, is then maximized to optimize the sandwich structure for energy transmission. Results are compared with numerical simulations of the dynamical behavior, obtained by the ANSYS FE-code.
2012 ◽
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pp. 808-813
2019 ◽
Vol 291
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pp. 167-173
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2003 ◽
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