Generalized composite multiscale permutation entropy and Laplacian score based rolling bearing fault diagnosis
Mechanical Systems and Signal Processing(2018)
摘要
•GCMPE is proposed to measure the complexity and dynamic changes of time series.•The influence of parameters on GCMPE and its comparison with MPE are studied.•A new fault diagnosis method is proposed based on GCMPE, LS and PSO-SVM.•The proposed method is applied to the experimental data to verify its effectiveness.•The proposed method is compared with existing methods for verifying its superiority.
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关键词
Multiscale permutation entropy,Complexity,Generalized composite multiscale permutation entropy,Feature selection,Fault diagnosis
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