超声马达摩擦学及其摩擦材料研究进展

Advances on Tribology of Ultrasonic Motor and Its Friction Materials

超声马达是一种新型原动机，与普通电磁马达不同，这是一种摩擦驱动马达．为了促进超声马达的发展，对其研究中关于定子与转子界面接触驱动特性和摩擦磨损特性，超声波振动对定子和转子接触界面摩擦学特性的影响，转子摩擦材料的选择及其寿命预测等，从摩擦学角度对国内外的研究进展进行了综合归纳与评述，并且针对超声马达摩擦驱动的特点，提出了当前值得重视的一些研究内容．

Ultrasonic motor is a new kind of motor developed in recent years. It is different from conventional electromagnetical motors. It is a kind of motor drived by frictio nal force and has a lot of different properties from electromagnetical motors. At present, the new motor has been developed rapidly and entered practical application stage in some developed countries. There has been some investigating basis of ultrasonic motor in China. More and more attentions to the new motor are being paid by researchers and engineers. In ordor to promote the motor development in China, the research advances in tribology of ultrasonic motor at home and abroad are introduced and reviewed synthetically from several main aspects that are the contract driving and friction and wear properties between stator and rotor, the effect of ultrasonic vibration on tribological properties of interface of stator and rotor and the choices and life prediction of friction material in motor and so on. Based on the friction driving characteries of ultrasonic motor, several important research directions and topics are put forward.