Size Adjustment and Optimization Design of Rectangular Compound Ultrasonic Motor Vibrator

The size of the compound ultrasonic motor vibrator,which based on the in-plane vibration of a rectangular plate,was designed by adjusting the parameters,finally to inspire L-B vibrations modes under the same driving frequency by ANSYS analysis.Through which,the vibrator of ultrasonic motor realized the elliptic orbit vibration.The changing regulation of vibrator frequency for different vibrator size parameters of ultrasonic motor was obtained.The basic designing steps of rectangular ultrasonic motor piezoelectric resonators were sunmarized,and the sizes of vibrator were optimized.Results show that the vibrator design procedures can be used for the design of rectangular ultrasonic motor piezoelectric resonators,so as to provide a good method to adjust the sizes of rectangular ultrasonic motor.