Spectral entropy: a complementary index for rolling element bearing performance degradation assessment

被引:119
|
作者
Pan, Y. N. [1 ]
Chen, J. [1 ]
Li, X. L. [2 ]
机构
[1] Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China
[2] Hangzhou Bearing Test & Res Ctr, State Testing Lab, Hangzhou, Zhejiang, Peoples R China
关键词
spectral entropy; performance degradation assessment; bearing accelerated life test; FAULT-DIAGNOSIS; STATISTICAL MOMENTS; MACHINE; VIBRATION; ALGORITHM; ENVELOPE; DEFECTS;
D O I
10.1243/09544062JMES1224
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Performance degradation assessment has been proposed to realize equipment's near-zero downtime and maximum productivity. Exploring effective indices is crucial for it. In this study, rolling element bearing has been taken as a research object, spectral entropy is proposed to be as a complementary index for its performance degradation assessment, and its accelerated life test has been performed to collect vibration data over a whole lifetime (normal-fault-failure). Results of both simulation and experiment show that spectral entropy is an effective complementary index.
引用
收藏
页码:1223 / 1231
页数:9
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