Volume 27 Issue 5
May  2012
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CHEN Zhi-xiong, ZUO Hong-fu, ZHAN Zhi-juan, ZHANG Ying, SUN Jian-zhong, CAI Jing. Method for oil-line debris electrostatic monitoring of bearing steel sliding friction pairs[J]. Journal of Aerospace Power, 2012, 27(5): 1096-1104.
Citation: CHEN Zhi-xiong, ZUO Hong-fu, ZHAN Zhi-juan, ZHANG Ying, SUN Jian-zhong, CAI Jing. Method for oil-line debris electrostatic monitoring of bearing steel sliding friction pairs[J]. Journal of Aerospace Power, 2012, 27(5): 1096-1104.

Method for oil-line debris electrostatic monitoring of bearing steel sliding friction pairs

  • Received Date: 2011-12-20
  • Publish Date: 2012-05-28
  • In order to meet the requirements of condition monitoring of oil system component deterioration at an early stage,an oil-line debris electrostatic sensor has been used to investigate real time and in-line wear monitoring in oil lubricated sliding contacts of bearing steel.The charging mechanism of oil lubricated metallic debris was researched and electrostatic monitoring system was designed.The wear experiments were divided into different loads and speeds,and then the friction coefficient,oil-line debris electrostatic signal,and electrostatic signal root mean square (RMS) were obtained and correlatively analyzed.The results show:(1) the oil-line debris electrostatic method and friction coefficient can consistently detect adhesive wear;(2) the electrostatic monitoring method can detect the abnormal signal before adhesion;(3) in the normal wear stage,the friction coefficient increases with the load reduction,and reduces with the speed increase;(4) in the severe wear stage,the RMS of electrostatic signal pulse peak first increase,and then reduces with the load increase,and reduces with the speed increase.

     

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