单相驱动旋转型驻波超声电机的运动机理

尽管单相驱动的旋转型驻波超声电机的原型样机早已研制成功，但对这类电机的运动机理的研究却一直局限在定性研究上。对于单相驱动的旋转型驻波超声电机来说，定子上的齿是运动传递的关键部分。因此对齿的运动特性的研究对进一步研究定、转子的摩擦接触过程有很重要的意义。以单相驱动的旋转型驻波超声电机为研究对象，通过假设定子的振动模态法对单相驱动的旋转型驻波超声电机的定子上的齿的运动特性进行了理论推导，并作了计算机仿真研究，得出了齿的运动轨迹以及速度曲线。

Study on Moving Mechanism of a Rotatory Type Standing Wave Ultrasonic Motor with Single Phase Driver

This paper studies on a rotatory type of standing wave ultrasonic motor with single phase driver.Though the prototype of ultrasonic motor has been proposed up early,its motion mechanism is still standing on the qualitative analysis.The teeth on the stator of the motor are the key section of transmitting motion.Therefore study on the motion characteristics of the teeth is meaningful for the further study on the contact process between the stator and the rotor.By assuming a operating mode,theoretical deduction and simulation for the motion equation and locus of a teeth top on the stator of the motor are made.Then the locus of the tooth top can be obtained.