行波旋转超声电机的热特性

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) Pub Date : 2011-12-01 DOI:10.1109/SPAWDA.2011.6167180

Xiaolong Lu, Junhui Hu, Chunsheng Zhao

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引用次数: 1

摘要

本文主要研究了行波旋转超声电机的热特性。建立了计算该电机额定运行时功率损耗的理论模型。功率损耗主要由占总损耗较大的摩擦损耗功率、结构阻尼损耗功率和介质损耗功率三部分组成。采用有限元法求解了超声电机内部的温度分布。为了使用更精确的边界条件进行模拟，还考虑了散热的辐射因子。计算结果与实验结果基本吻合，表明本文的分析方法是有效的。此外，还发现通过改变某些结构件的尺寸可以优化超声电机温度场的均匀性。

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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Thermal characteristics of traveling wave rotary ultrasonic motors

This paper mainly reports the thermal characteristics of traveling wave rotary ultrasonic motors. A theoretical model for calculating the power loss of this motor in rated operation is built. The power loss mainly consists of three parts, i.e. the friction loss power which shares the large portion in the total loss, the structure damping loss power and the dielectric loss power. The finite element method is applied to solve the temperature distribution in the ultrasonic motors. The radiation factor for heat dissipating is also taken into account in order to use much more accurate boundary conditions for simulation. The calculated result agrees with the experimental results basically, which indicates that the analysis method in this paper is valid. Besides that, it is found that the uniformity of temperature field of ultrasonic motors can be optimized by changing the dimensions of some structural parts.

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来源期刊

2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)

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