Experimental Investigation on Friction Characteristics of Ultrasonic Motor
行波型超声波电机摩擦特性的实验研究

Ultrasonic motor is an unconventional motor driven by frictional force and high frequency vibration based on the principle of inverse piezoelectric effect.The high frequency vibration and minor amplitude between the stator and rotor have its own characteristics at friction interface,which is different from the traditional interface.The characteristics have significant effect on conversion efficiency,motor's lifetime and the choice of frictional material.This paper presented the dynamic friction coefficient ...