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首页> 外文会议>Proceedings of 4th International Workshop on Piezoelectric Materials and Applications in Actuators >Study on Non-linear Vibration of Traveling Wave Ultradonic Motor Stator
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Study on Non-linear Vibration of Traveling Wave Ultradonic Motor Stator

机译：行波超声电机定子的非线性振动研究

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摘要

It is analyzed that the contact force between stator and rotor of traveling wave ultrasonic motor(TWUM) is nonlinear and the force can cause the stator nonlinear vibration.On the basis of this,TWUM stator nonlinear vibration model is built,and then the model makes use of the KBM method to find the solution.The result shows that stator vibration presents nonlinear vibration jump and ysteresis phenomena.So this can cause TWUM output performance.These are validated by experiment.It is pointed out that the higher exciting stator voltage,the lower preload between stator and rotor,the smaller friction coefficients between stator and friction material,the shorter stator ooth and the softer friction material can make stator nonlinear vibration with jump and hysteresis phenomena fainter and TWUM operate more stable and broader working frequency band.
机译：分析了行波超声电机定子与转子之间的接触力是非线性的，该力会引起定子非线性振动。在此基础上，建立了TWUM定子非线性振动模型，并建立了模型结果表明，定子振动表现出非线性的振动跳变和滞后现象，因此会导致TWUM输出性能的提高，并通过实验进行了验证。定子与转子之间的预紧力越低，定子与摩擦材料之间的摩擦系数越小，定子齿距越短，摩擦材料越软，可使定子的非线性振动（具有跳变和滞后现象）越淡，TWUM的工作频率就越稳定，工作频带越宽。

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