杆式行波超声电机运动机理的研究  

INVESTIGATION OF MOTION MECHANISM OF A BAR-TYPE TRAVELING WAVE ULTRASONIC MOTOR

作　　者：黄卫清[1] 马相林[1] 董迎晖[1] 赵淳生[1] 

机构地区：[1]南京航空航天大学超声电机研究中心,南京210016

出　　处：《振动与冲击》2004年第2期48-51,共4页Journal of Vibration and Shock

基　　金：国家自然科学基金重点资助项目 (编号 :50 2 350 1 0 )

摘　　要：本文介绍了作者发展的一种杆式行波超声电机的结构。基于振动和波动理论 ,深入研究了杆式行波超声电机的运行机理 ,推导了定子端面上任意质点运动轨迹 ,证明了在一定的激励条件下 ,定子端面沿Z向、径向和周向都可形成行波。描述了定子端面某些点的运动轨迹的空间分布。还提出了定、转子间最佳接触角和有效椭圆的概念。这些都为设计高效率的杆式超声电机提供了理论依据。The self-developed structure of a bar-type traveling wave ultrasonic motor is presented. Based on vibration wave theory, the motion mechanism of the ultrasonic motor is investigated, and the motion trace of a particle on the surface of the stator end is educed. The existence of traveling waves on the surface is proved and the space distributions of motion traces of some particles on the surface are described. The concept of effective ellipse and optimal contact angle between stator and rotor is put forward, which is offered as theoretical basis for designing the bar-type ultrasonic motor with high efficiency.

关 键 词：超声电机 弯曲振动 杆式行波型超声电机 运动机理 压电材料 

分 类 号：TM35[电气工程—电机]