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Volume 38 Issue 10
Oct.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  38(10): 1280-1284.
Hong Jie, Yang Xin, Chen Lulu, et al. Experiments of contact stiffness and fretting wear on coating material of blade shroud[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1280-1284. (in Chinese)
Citation: Hong Jie, Yang Xin, Chen Lulu, et al. Experiments of contact stiffness and fretting wear on coating material of blade shroud[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1280-1284. (in Chinese)
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Experiments of contact stiffness and fretting wear on coating material of blade shroud

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 24 Jun 2011
  • Publish Date: 30 Oct 2012
    Abstract
  • The experimental facilities, which could be used to measure the hysteresis curve caused by fretting during contact surface, were adopted in order to test the contact stiffness and fretting wear of the test pieces with the coating material under different contact styles. The contact stiffness test results indicate the impact of vibration force amplitude and frequency as well as contact pressure on the contact stiffness; the fretting wear test results manifest the influence on the contact stiffness when contact styles and loading conditions on the contact surface vary under different working hours. After analyzing the test results, the protective measures against fretting wear of dry friction damping structures were proposed, contributing to enhance the aero-engine reliability and offer the theoretical basis and technical support.

     

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