NDLI: Friction and wear test device of linear ultrasonic motor and experimental studies

Content Provider	IEEE Xplore Digital Library
Author	Jie Zhang Zhi-yuan Yao
Copyright Year	2010
Description	Author affiliation: Precision Driving Laboratory, Nanjing University of Aeronautics and Astronautics, 210016, China (Jie Zhang; Zhi-yuan Yao)
Abstract	Linear ultrasonic motors are known for their various advantages such as direct actuating, stepping and servo working, as well as excellent controllable performance. Hence, linear ultrasonic motors are becoming increasingly important in the studying field of ultrasonic motors around the world. As the output characteristics of ultrasonic motors are directly influenced by the friction characteristic and wear of the interface between stator and promoter, it is necessary to study the tribology between stator and promoter of the linear ultrasonic motor. Friction and wear test device for linear ultrasonic motor was manufactured based upon its working principle. With this device, the relationship between the wearing rate of stator driving foot and the preload of linear ultrasonic motors, the relative motion velocity of contact point of promoter was studied. Friction characteristics of driving foot interface were also analyzed in this paper. Furthermore, wearing capacity of friction pair was tested by electronic analytical balance, wear rate was calculated and friction surface was analyzed as well. The driving foot and stator used in the test were made of 45 steel and alumina ceramic respectively. The results of the test indicate that the friction coefficient increases (decreases) as pre-pressure (relative speed) increases, and wear rate of the stator increases (decreases at first and then increases) while preload (relative speed) increases. The wear mechanisms of the ceramic are brittle flaking off and fatigue wear. Moreover, abrasive wear is the major reason of stator wearing, while adhesive wear and fatigue wear are minor reasons.
Starting Page	72
Ending Page	77
File Size	1626053
Page Count	6
File Format	PDF
ISBN	9781424498222
e-ISBN	9781424498215
DOI	10.1109/SPAWDA.2010.5744278
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Friction Wear rate Stators Friction coefficient Fatigue Friction and wear apparatus Acoustics Linear ultrasonic motor Ceramics Surface topography wear mechanism Foot
Content Type	Text
Resource Type	Article

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