| 基于加速磨损试验的止推轴承磨损寿命预测 |
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| 引用本文： | 周玉辉,康锐,苏荔,吴建军.基于加速磨损试验的止推轴承磨损寿命预测[J].北京航空航天大学学报,2011,37(8):1016-1020. |
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| 作者姓名： | 周玉辉 康锐 苏荔 吴建军 |
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| 作者单位： | 1.北京航空航天大学 可靠性与系统工程学院, 北京 100191 |
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| 基金项目： | “十一五”国防基础科研资助项目(D0120060581-06) |
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| 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.
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| 关 键 词： | 止推轴承 高可靠性 长寿命 退化模型 加速磨损试验 寿命预测 |
| 收稿时间： | 2010-03-29 |
Life prediction of thrust bearings based on accelerated wear test |
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| Zhou Yuhui Kang Rui Su Li Wu Jianjun.Life prediction of thrust bearings based on accelerated wear test[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(8):1016-1020. |
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| Authors: | Zhou Yuhui Kang Rui Su Li Wu Jianjun |
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| Institution: | 1.School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China2. Tianjin Research Institute of Physical and Chemical Engineering, Tianjin 300180, China |
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| 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 200h 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.... |
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| Keywords: | thrust bearings high-reliability long-lifetime degradation model accelerated wear test life prediction |
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