Performance of ultrasonic motor under vacuum and high temperature condition
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Performance of ultrasonic motor under vacuum and high temperature condition
Optics and Precision EngineeringVol. 13, Issue 3, Pages: 324-331(2005)
作者机构:
哈尔滨工业大学 机电工程学院,黑龙江 哈尔滨,150001
作者简介:
基金信息:
DOI:
CLC:TM356;TM359.6
Received:14 February 2005,
Revised:12 April 2005,
Published Online:30 June 2005,
Published:30 June 2005
稿件说明:
移动端阅览
QU Jian-jun, CHENG Xian-min, LUO Yun-xia, et al. Performance of ultrasonic motor under vacuum and high temperature condition[J]. Optics and precision engineering, 2005, 13(3): 324-331.
DOI:
QU Jian-jun, CHENG Xian-min, LUO Yun-xia, et al. Performance of ultrasonic motor under vacuum and high temperature condition[J]. Optics and precision engineering, 2005, 13(3): 324-331.DOI:
Performance of ultrasonic motor under vacuum and high temperature condition
The performance of ultrasonic motor under abnormal conditions are researched
with five kinds of engineering plastics chosen as the rotor friction materials of traveling wave ultrasonic motor (TWUSM). By means of contrast test methods
effects of pre-load
degree of vacuum and surrounding temperature on friction driving properties of TWUSM are studied by using vacuum equipment and simulative TWUSM tester suitable. The results show that stalling torque increases and no load speed decreases with the increase of the pre-load and degree of vacuum. The no load speed decreases with the increase of surrounding temperature. Effects of degree of vacuum on contact states are analyzed by acoustics theory. The conclusion is that action of acoustic levitation makes dynamic contact force between stator and rotor reduce. The major reason the stalling torque in vacuum is higher than that in normal is that the effects of acoustic levitation decrease and the dynamic contact force increases.
关键词
Keywords
references
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