滚动轴承性能不确定性与可靠性评估

发布时间：2018-05-27 02:38

本文选题：滚动轴承 + 不确定性　；参考：《中国机械工程》2017年18期

【摘要】：以灰色系统理论和泊松计数过程为基础,对滚动轴承性能不确定性进行参数量化,并在设定阈值条件下研究不同工况下轴承性能可靠性,进而建立其性能不确定性与可靠性匹配序列,以寻找轴承服役期间两者之间的内在联系。根据轴承运转期间某属性时间序列,进行灰自助处理得到该属性的不确定性;然后参考设定阈值进行泊松计数,获得该时间序列的有效变异强度,进而得到其性能运转可靠性;最后分析不确定性与可靠性两者之间的灰关系。实验结果显示,滚动轴承性能不确定性与可靠性的演变状况可以被真实描述,两者归一化处理结果十分相像,有着明显的灰关系,各案例的实验结果保持良好的一致性。
[Abstract]:Based on the theory of grey system and Poisson counting process, the performance uncertainty of rolling bearing is quantified, and the reliability of bearing performance under different working conditions is studied under the condition of setting threshold. Furthermore, the matching sequence of performance uncertainty and reliability is established to find the internal relationship between them during service. According to the time series of a certain attribute during the operation of the bearing, the uncertainty of the attribute is obtained by self-processing of grey, then Poisson count is made by reference to the set threshold, and the effective variation intensity of the time series is obtained, and the reliability of the performance is obtained. Finally, the grey relationship between uncertainty and reliability is analyzed. The experimental results show that the evolution of performance uncertainty and reliability of rolling bearings can be described truthfully. The results of normalized treatment are very similar and have obvious grey relationship. The experimental results of each case are in good agreement.
【作者单位】：河南科技大学机电工程学院;河南科技大学机械装备先进制造河南省协同创新中心;
【基金】：国家自然科学基金资助项目(51475144,U1404517) 河南省自然科学基金资助项目(162300410065)
【分类号】：TH133.33

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