Research on Model of the Traveling

Wave-Type Ultrasonic Motor

Wu Xinkai  He Zaohong

(College of Information and Electrical Engineering，Hunan University of Science and Technology, Xiangtan 411201)

Hu Junda

(Department of Electrical Engineering, Hunan Polytechnic Institute, Xiangtan 411101 )

Abstract: Based on the application of the energy principle and the special structure of the traveling-wave type ultrasonic motor, by using the analysis about those concepts, such as force of the stator ring’s surface, wave’s speed of the stator ring, the mechanical consumption of the stator ring, the force impress of the stator ring to the rotor ring standing in the mechanical features of the traveling-wave type ultrasonic motor, the power consumption and the torque equation of the rotor ring are analyzed in two different situations, use two different rotor material to establish the torque equation of traveling-wave type ultrasonic and provide practical mathematics model to develop the control theory of traveling-wave type ultrasonic motor.

Key words: Ultrasonic motor  Mathematical model  Movement of the stator  Movement of the rotor
CLC No: TM35
湖南省自然科学基金资助项目(03JJY6019). Received 20040204, received in revised form 200200401008