Effect of thickness of friction material on contact state of ultrasonic motor
QU Jian-jun, WANG Yan-li, ZHOU Ning-ning, Cui Wei Lin
School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China
Abstract:
Performances of ultrasonic motor (USM) considerably depend on contact state between stator and rotor.Based on an electric contact method,the effects of thickness of single homogeneous friction material and gradient friction material on contact state between stator and rotor were studied.The relative contact length was employed to describe the contact characteristics of stator and rotor.With the decrease of thickness of friction material,the contact characteristic of stator and rotor were analyzed and compared when single homogeneous friction material and gradient friction material were used.The experimental results showed that the effect of gradient friction material on contact characteristic is smaller than that of single homogeneous friction material when the thickness of friction material decreases.The result can provide experimental guidance for design and choosing of friction material for USM.
Key words: ultrasonic motor contact state friction material gradient
DOI：10.11916/j.issn.1005-9113.2011.06.002
Clc Number:TB302
Fund:
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Effect of thickness of friction material on contact state of ultrasonic motor
本站小编 哈尔滨工业大学/2019-10-23
相关话题/Effect thickness friction material contact
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