压电超声电机定子运动的数值研究

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI:10.1109/ATEE.2015.7133878

A. Morega, G. Robello, M. Morega, L. Pîslaru-Dănescu

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引用次数: 3

摘要

本文介绍了压电行波旋转超声电机定子动力学的数学建模和数值模拟结果。定子为PZ复合环，转子为金属环。转动转矩是通过将定子激励成弯曲行波，通过定子-转子摩擦传递给转子而产生的。模态分析给出了定子的结构特征频率。当交流供电阶段提供两个相同振幅和正交位移的电压时，将其调整为接近定子弯曲共振的频率，TW达到更高的振幅，从而导致更高的转速，因为转子速度与定子TW幅值成正比。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Numerical study of the stator motion in a piezoelectric ultrasonic motor

This paper presents mathematical modeling and numerical simulation results that are part of a study concerning the dynamics of the stator of piezoelectric (PZ) traveling wave (TW) rotating ultrasonic motor. The stator is a PZ composite ring, and the rotor is a metallic ring. The rotational torque is produced by exciting the stator into a flexural traveling wave, transmitted to the rotor through the stator-rotor friction. A modal analysis provides for the structural eigenfrequencies of the stator. When the AC powering stage providing for two voltages of same amplitude and shifted in quadrature is adapted to a frequency close to the flexural resonance of the stator, the TW reaches higher amplitudes that result in higher rotational velocities because the rotor speed is proportional to the stator TW amplitude.

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来源期刊

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)

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