【摘要】 研制出一种新型弯曲旋转超声波马达。其定子由一个实心金属柱和粘贴在其上的压电陶瓷片组成。分析了该超声波马达的运动机理,针对新加坡学者所作推导的局限性,根据梁的弹性振动理论,推导出一端固定一端自由的定子在相位差为90°的两个交变电压激励时其端部质点的运动轨迹方程;分析了该马达的定子和转子间接触锥形角的计算方法,为柱形弯曲旋转超声波马达的设计提供了理论指导。更多还原

【Abstract】 A new type of bending rotation ultrasonic micro-motor was developed.Its stator consists of a solid metal cylinder and two bulk ceramics that were bonded on the metal cylinder.The operating principle of the ultrasonic micro motor was analyzed.In accordance with limitations that kinematic analysis was proposed by Singaporean,a new kinematic equation of end point locus on the stator surface was deduced based on the elastic vibration theory of beam with a uniform cantilever beam model.Computing method of contact taper angle between the stator and the rotor of bending rotation ultrasonic motor was analyzed.These results provided a theoretic guidance for design of the cylinder ultrasonic motor.更多还原