Abstract
For a novel inertial piezoelectric rotary motor, the equation of the voltage response on the piezo-ceramic bimorph under the excitation signals is deduced and the dynamic equation of the motor rotor is given. Using the equations, the voltage responses on the piezo-ceramic bimorph and the responses of the displacement, velocity and acceleration on the rotor to the sawtooth voltage excitation are investigated. The results show that when the frequency of the excitation signal is quite low, the waveform of the displacement response of the rotor is identical to one of the excitation signal; the outer diameter of the rotor, its length and thickness, etc., have obvious effects on the inertial moment applied to the rotor. The results are useful for design and control of the operating performance of the motor.
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Recommended by Associate Editor Ohseop Song
Lizhong Xu is a full Professor in machine design and theory at the Yanshan University, China. He received his Ph.D. in machine design and theory from Yanshan University in 1999. His primary research interests are in the area of mechanical transmission and electromechanical integrated system.
Jichun Xing is a lecturer in machine design and theory at the Yanshan University, China. He received his Ph.D. in machine design and theory from Yanshan University in 2012. His primary research interests are in the area of mechanical transmission and piezo-electric motor.
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Xu, L., Xing, J. Forced response of the inertial piezoelectric rotary motor to electric excitation. J Mech Sci Technol 29, 4601–4610 (2015). https://doi.org/10.1007/s12206-015-1005-1
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DOI: https://doi.org/10.1007/s12206-015-1005-1