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- W2379568675 abstract "Extraction of concurrent fault feature is difficult due to feature coupling and modulating,the trait of higher order cumulants(HOC)is able to restrain the noise and identify phase coupling and detect nonlinear of system.The AR-bispectrum based on HOC is proposed and used to analyze the accelerating vibration signal of concurrent fault of crank bearing and coupler bearing.Analysis result shows that AR-bispectrum based on HOC can distinguish the excited frequency of each running part from the complicated signal from the multi-excited sources.When the concurrent fault of crank bearing and coupler bearing oc-curs,the coupling and modulation in signal will appear.The AR-bispectrum based on HOC is able to de-couple and demodulate the signal,and identify the feature frequency of crank bearing which is between 1.5,kHz and 1.8,kHz,and the feature frequency of coupler bearing is between 0.9,kHz and 1.1,kHz.Am-plitude of feature frequency can be used as the feature parameter in concurrent fault diagnosis.AR-bispectrum based on HOC is an effective method to extract the concurrent fault feature of crank bearing and coupler bearing." @default.
- W2379568675 created "2016-06-24" @default.
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- W2379568675 date "2011-01-01" @default.
- W2379568675 modified "2023-09-27" @default.
- W2379568675 title "Analysis of Vibration Signals of Bearing Concurrent Fault Based on Higher Order Cumulants" @default.
- W2379568675 hasPublicationYear "2011" @default.
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