ANTIFRICTION MECHANISM OF ULTRASONIC VIBRATION BASED ON ULTRASONIC MICRO DRIVING

Abstract

Abstract: Ultrasonic vibration of stator surface points at the contact region of stator and rotor in ultrasonic motor (USM) is resolved into horizontal and vertical vibration respectively. The effects of the two vibration on the drive properties of USM are analyzed. It is proposed that the horizontal vibration produces friction driving force and the vertical vibration affects this process. The action of vertical ultrasonic vibration is equivalent to that of ultrasonic vibration being perpendicular to sliding direction in common sliding test. The reasons are that the vertical ultrasonic vibration results in decrease of sliding friction coefficient in ultrasonic drive.

Key words: Antifriction mechanism, Ultrasonic drive, Ultrasonic motor, Ultrasonic vibration, FASTSIM algorithm, wear depth, wear volume, Archard wear model, Temperature rising due to braking

CLC Number:

TH117

Luo Yunxia;Qu Jianjun;Qi Yulin. ANTIFRICTION MECHANISM OF ULTRASONIC VIBRATION BASED ON ULTRASONIC MICRO DRIVING[J]. , 2001, 37(5): 52-56.

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ANTIFRICTION MECHANISM OF ULTRASONIC VIBRATION BASED ON ULTRASONIC MICRO DRIVING

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