Finite element analysis and tests for a high torque radial standing wave type ultrasonic motor

被引：0

作者：

Jiang C. ^{[1
]}

Zhou L. ^{[1
]}

Dong X. ^{[2
]}

Lu D. ^{[1
]}

Jin L. ^{[2
]}

机构：

[1] School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing

[2] School of Electrical Engineering, Southeast University, Nanjing

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 05期

关键词：

High torque; Radial standing wave; Torque-speed characteristics; Ultrasonic motor; Vibration characteristics;

D O I：

10.13465/j.cnki.jvs.2020.05.008

中图分类号：

学科分类号：

摘要：

A high torque radial standing wave type ultrasonic motor was proposed to realize large torque output and keep compact structure feature. Firstly, the motor structure was designed and its working principle was analyzed. The finite element method was used to analyze its stator vibration characteristics. Then a motor prototype with diameter of 32 mm was fabricated. Its stator's resonance frequency and radial vibration amplitude were measured with a laser vibrometer. The measurement results agreed well with theoretical analysis ones. Finally, a test platform for measuring the motor's output characteristics was constructed and torque-speed characteristics of the motor under different voltages were measured. The results showed that the resonance frequency of the stator working mode is 73.3 kHz; when applied voltage amplitude is 100 V with frequency of 74 kHz, the motor's no-load speed is 45 r/min, and its blocking torque reaches 0.41 N-m; compared to other ultrasonic motors with the same sizes, the proposed motor has a larger blocking torque. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：57 / 62and73

页数：6216

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