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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:
Ultrasonic
motor Ultrasonic vibration Antifriction mechanism
Ultrasonic drive
CLC No: TH117
黑龙江省自然科学基金资助项目. Received 20000905,
received in revised form 20001220
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