一种方底座短柱超声波电机的设计

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Abstract Cylindrical ultrasonic motor not only has many unique characteristics, such as high torque at low speed, high holding torque, rapid response and no magnetic interference, but also has simple structure by using langevin vibrator. In order to improve the practicability, simple support mode, easy production, and small length become important design objectives. A stator structure with free-fixed ends is designed which has small length to diameter ratio, and is fixed at four corners of the lower square base. Operating mechanism of the motor is analyzed, and effect of circumferential asymmetry on the longitudinal displacement of nodes at upper surface is calculated using finite element method. Impedance frequency characteristic curve of the stator is measured using the Labview. Vibration mode of the stator and axial vibration amplitude are measured using PSV-400-M2 laser vibrometer, the mode shape is close to the free-fixed vibration mode, and the maximum amplitude is up to 1.96μm. Computational and experimental results show that the design of the motor is feasible.

Key words： Cylindrical ultrasonic motor square-base support mode free-fixed vibration mode

Received: 20 August 2014 Published: 14 April 2015

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TM356

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	Articles by authors
	Wang Ruixia
	Jin Long
	Pan Peng
	Dong Xiaoxiao

Cite this article:

Wang Ruixia,Jin Long,Pan Peng等. A Short Cylindrical Ultrasonic Motor With Square Base[J]. Transactions of China Electrotechnical Society, 2015, 30(2): 134-139.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I2/134

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