• CN:11-2187/TH
  • ISSN:0577-6686

›› 2010, Vol. 46 ›› Issue (17): 73-78.

• 论文 • 上一篇    下一篇

超声波电动机接触界面梯度设计模型

曲建俊;王彦利;周宁宁   

  1. 哈尔滨工业大学机电工程学院
  • 发布日期:2010-09-05

Gradient Design Model of Contact Interface for Ultrasonic Motor

QU Jianjun;WANG Yanli;ZHOU Ningning   

  1. School of Mechatronics Engineering, Harbin Institute of Technology
  • Published:2010-09-05

摘要: 超声波电动机是依靠定转子接触界面间的摩擦传递动力的新型驱动器,摩擦材料作为接触界面的重要组成部分,它的设计和磨损控制是超声波电动机的关键问题。建立一个超声波电动机定转子简化接触模型,研究摩擦材料磨损对定转子接触参数与驱动摩擦力的影响,得出保持接触宽度稳定时,摩擦材料磨损后应具有的性能,提出设计超声波电动机梯度摩擦材料的构想,并建立梯度摩擦材料理论结构模型。模拟分析表明:超声波电动机摩擦材料的弹性模量应具有在法向上由表及里呈现梯度递减的趋势,可保持定转子接触宽度的稳定,维持超声波电动机输出性能,延长超声波电动机性能寿命,为超声波电动机摩擦材料选择与研究开辟新领域。

关键词: 超声波电动机, 接触界面, 摩擦材料, 磨损, 梯度, 离散制造系统, 能量效率, 体系结构, 研究现状, 制造系统

Abstract: Ultrasonic motor is a new type of motor driven by friction force between the contact interface of rotor and stator. Friction material is an important part of contact interface. Its design and wear control are key problems for ultrasonic motor. A simplified model of ultrasonic motor is established. Effect of wear of friction material on contact parameters and driving friction force is studied. The properties that worn friction material should have are obtained by keeping stable contact width between rotor and stator. Design principle and theoretical structure model of gradient friction material for ultrasonic motor are proposed. The simulation analysis shows that normal elastic modulus of friction material pasted on rotor should gradually decline from the extenior to the interior. This type of friction material can maintain the output properties and increase performance lifetime of ultrasonic motor. And a new field is opened up for choosing and reasearching friction material for ultrasonic motor.

Key words: Contact interface, Friction material, Gradient, Ultrasonic motor, Wear, Content Architecture, Discrete Manufacturing Systems, Energy Efficiency, State of the Art, Manufacturing Systems

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