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Dynamic analysis of a short cylinder piezo motor

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Abstract

The bar-type traveling wave ultrasonic motor is simple, inexpensive, easy to use, and suitable for miniaturization. Its operating performance is significantly affected by the dynamic behavior of the vibrator. In this work, the analytical equations for calculating the dynamic behavior of the motor vibrator are presented using the ring model. The natural frequencies and vibrating modes of the motor are investigated using the analytical equations. Changes in the natural frequencies along with the motor parameters are analyzed. The forced responses of the vibrator to two input signals with a phase difference of 90° are given. A FEM analysis in ANSYS is used to simulate the natural frequencies and vibrating modes of the vibrator. A test is conducted to illustrate the analytical calculative results.

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Authors and Affiliations

  1. School of Mechanical Engineering, Yanshan University, Qinhungdao, 066004, China

    Lizhong Xu & Shanjie Du

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  1. Lizhong Xu
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  2. Shanjie Du
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Correspondence to Lizhong Xu.

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Recommended by Editor Yeon June Kang

Lizhong Xu is a full professor in machine design and theory in 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.

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Xu, L., Du, S. Dynamic analysis of a short cylinder piezo motor. J Mech Sci Technol 28, 2953–2961 (2014). https://doi.org/10.1007/s12206-014-0702-5

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  • DOI: https://doi.org/10.1007/s12206-014-0702-5

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