滚动轴承性能不确定性与可靠性评估

摘要/Abstract

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。

关键词: 滚动轴承, 不确定性, 可靠性, 灰关系

Abstract: Based on the grey system theory and Poisson counting process, the performance uncertainty of rolling bearings was quantified by a parameter, and the performance reliability of the bearings under different working conditions was analyzed via setting threshold value, then the performance matching sequences of uncertainty and reliability were established to find out the internal connection between the two items in bearing service processes. According to a property time series during the bearing operations, its uncertainty was obtained by grey bootstrap processing. Referencing the setting threshold to Poisson count, the time series effective variation strength was gained, then the performance reliability was acquired. Finally, the grey relation between uncertainty and reliability was analyzed. Experimental results show that the evolution information of rolling bearing performance uncertainty and reliability may be really described, the normalization processing results of the two are very similar and presenting obvious grey relation. The experimental results of various cases keep good consistency.

Key words: rolling bearing, uncertainty, reliability, grey relation

中图分类号:

TH133
TB114

常振1;夏新涛1,2;李云飞1;刘红彬1. 滚动轴承性能不确定性与可靠性评估[J]. 中国机械工程.

CHANG Zhen1;XIA Xintao1,2;LI Yunfei1;LIU Hongbin1. Evaluation of Rolling Bearing Performance Uncertainty and Reliability[J]. China Mechanical Engineering.

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