Force Transfer Model and Characteristics of Traveling-Wave Type Ultrasonic Motors
This work intends to introduce a new type of motortraveling- wave type ultrasonic motor (TWUSM). The structure and the operation principle of the TWUSM were introduced in this paper at first. Then the force transfer model of the contact surface between the stator and the rotor was deduced based on the elastic contact theory and the hookes law. The relationships between the preload, the contact angle and the physical parameters of the frictional material were given. According to the direct piezoelectric effect, the input current of the TWUSM was determined, and the output efficiency of the TWUSM was derived with the ratio of the output power of the contact surface and the input electric power of the TWUSM. Finally, all factors that affect the mechanical characteristics were analyzed, and the accuracy and the suitability of the analytical model were verified by comparison with the experimental results.
Guangqing WANG
Zhejiang Gongshang University, China
国际会议
2nd IEEE Conference on Industrial Electronics and Applications(ICIEA 2007)(第二届IEEE工业电子与应用国际会议)
哈尔滨
英文
2007-05-23（万方平台首次上网日期，不代表论文的发表时间）