JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2016, Vol. 46 ›› Issue (3): 112-116.doi: 10.6040/j.issn.1672-3961.0.2015.282

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A method of reducing the slip in radial direction of the traveling wave type rotary ultrasonic motor

JI Yuebo, WU Wangxian   

  1. College of Mechanical and Energy Engineering, Jimei University, Xiamen 361021, Fujian, China
  • Received:2015-08-24 Online:2016-06-30 Published:2015-08-24

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Abstract: In order to reduce the slip in radial direction of the traveling wave type rotary ultrasonic motor(TRUM), a method of increasing the maximum of shear deformation of friction layer of rotor was put forward to achieve the purpose of reducing the slip in radial direction of TRUM. The factors which affect the radial maximum angle of shear deformation of the friction layer were got based on the principle of stick-slip of the contact area between the stator and the rotor in TRUM. The motors three-dimensional finite element contact model was built and simulation analysis was conducted with finite element software ANSYS10.0. The analysis results showed that the value of coefficient of friction and the value of poissons ratio of the friction layer material could be increased to reduce the slip in radial direction of TRUM. And the influence of the variation of poissons ratio was more noticeable than that of coefficient of friction on reducing the slip in radial direction of TRUM.

Key words: finite element simulation, shear deformation angle, radial slip, ultrasonic motor, friction layer

CLC Number: 

  • TM359.9
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