Study on cyclic energy indicator for degradation assessment of rolling element bearings
Study on cyclic energy indicator for degradation assessment of rolling element bearings
复制标题
滚动轴承退化评估的循环能量指标研究
DOI：
10.1177/1077546310362860
复制
发表时间：
2011-10-01
影响因子：
2.8
通讯作者：
Chen, J.
中科院分区：
文献类型：
--
作者：
Dong, G. M.;Chen, J.
性能降级评估已经出现，以实现设备的近乎零的停机时间和最大生产率。探索有效的指数对此至关重要。本研究以滚动轴承为研究对象，提出了循环能量指标来评价其性能退化。所提出的循环能量指标基于信号的循环相干分析，并通过仿真和播种故障实验数据验证了其随滚动轴承损伤程度的变化。然后对滚动轴承进行加速寿命试验，收集滚动轴承全寿命(正常-故障-故障)的振动数据。仿真和实验结果均表明，循环能量指标是滚动轴承退化评估的有效指标。
Performance degradation assessment has emerged to realize equipment's near-zero downtime and maximum productivity. Exploring effective indices is crucial for it. In this study, taking rolling element bearing as a research object, cyclic energy indicator is proposed for its performance degradation assessment. The proposed cyclic energy indicator is based on signals' cyclic coherence analysis and its variation with the damage extent of the rolling element bearing is verified through simulation and seeded fault experimental data. Then an accelerated life test of the rolling element bearing is performed to collect vibration data over the whole life time (normal-fault-failure). Results of both simulation and experiments show that the cyclic energy indicator is an effective index for the degradation assessment of rolling element bearings.