北京航空航天大学学报 ›› 2011, Vol. 37 ›› Issue (8): 1016-1020.

• 论文 • 上一篇    下一篇

基于加速磨损试验的止推轴承磨损寿命预测

周玉辉1, 康锐1, 苏荔2, 吴建军2   

  1. 1. 北京航空航天大学 可靠性与系统工程学院, 北京 100191;
    2. 天津理化工程研究院,天津 300180
  • 收稿日期:2010-03-29 出版日期:2011-08-30 发布日期:2011-09-03
  • 作者简介:周玉辉(1971-),女,河北唐县人,博士生,yhzhou776@sohu.com.
  • 基金资助:

    "十一五"国防基础科研资助项目(D0120060581-06)

Life prediction of thrust bearings based on accelerated wear test

Zhou Yuhui1, Kang Rui1, Su Li2, Wu Jianjun2   

  1. 1. School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. Tianjin Research Institute of Physical and Chemical Engineering, Tianjin 300180, China
  • Received:2010-03-29 Online:2011-08-30 Published:2011-09-03

摘要: 为进行耐磨性良好的止推轴承寿命验证,结合退化模型进行了基于加速磨损试验的止推轴承寿命预测研究,建立了止推轴承加速磨损寿命方程.在失效机理分析基础上,以加载力为加速应力开展了7 200 h的止推轴承加速磨损试验,得到反映耐磨性能下降的体积磨损量变化数据,预测得到置信度90%时,止推轴承在使用条件下运行10 a的可靠度为0.94.该项研究表明,对磨损进程极为缓慢的高可靠性、长寿命止推轴承,利用加速磨损试验数据预测其寿命,能节约试验时间和费用.

Abstract: The life prediction of thrust bearings was gotten by using accelerated wear test based on degradation model for the life verification of the thrust bearings with good wear-resisting property, and its life prediction model for the accelerated wear test was proposed. Based on the analysis of the failure mechanism, the accelerated wear test was conducted for 7 200 h considering the load as an accelerated stress, the data of the wear volume indicating the degradation of the wear-resisting property were gotten and 0.94 of the reliability with 90% of the confidence level was predicted for the thrust bearings running for 10 a at service conditions. It is shown that the test time and cost can be saved by using the data of the accelerated wear test to predict the life of the thrust bearings with high-reliability, long-lifetime and very small wear rate.

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