【作者】 孙凤艳； 曲建俊；

【Author】 Sun Fengyan Qu Jianjun (Department of Mechanical Engineering, Harbin institute ofTechnology)

【机构】 哈尔滨工业大学机电学院；

【摘要】 根据行波超声马达基本原理,提出一种新的粘弹性接触模型。通过对马达接触界面的模拟分析,发现马达的速度特性和负载特性均有所变化。从摩擦学角度分析了摩擦材料新的粘贴方式对马达接触界面摩擦磨损特性的影响。分析结果表明,将摩擦材料粘贴在定子上会在降低摩擦系数,但通过选择适当的材料,仍能够使马达获得较大的输出力矩,并同时具有较好的耐磨性。更多还原

【Abstract】 According to basic principle of traveling wave ultrasonic motor (TWUSM), a new visco-elastic contact model is presented. Numerical simulation of motor contact interface shown that both speed characteristic and load characteristic have some changes. From the view of tribology, effects of new stickup methods of friction material on friction and wear behavior of motor contact interface are analyzed The analysis results show that, because friction material is stuck on stator, friction coefficient of contact interface decreases; motor can still obtain bigger output torque by choose proper material; it has well wear resistance at the same time.更多还原