Incipient fault feature extraction of rolling bearings based on the MVMD and Teager energy operator.
Sign Up to like & getrecommendations! Published in 2018 at "ISA transactions"
DOI: 10.1016/j.isatra.2018.05.017
Abstract: Aiming at the problems that the incipient fault of rolling bearings is difficult to recognize and the number of intrinsic mode functions (IMFs) decomposed by variational mode decomposition (VMD) must be set in advance and… read more here.
Keywords: teager energy; fault; energy operator; rolling bearings ... See more keywords
Teager energy spectral kurtosis of wavelet packet transform and its application in locating the sound source of fault bearing of belt conveyor
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2020.108367
Abstract: Abstract Kurtogram is widely used in fault diagnosis because it can adaptively identify the resonance frequency band of the fault. However, kurtosis defined in time domain has poor robustness and is very sensitive to noise… read more here.
Keywords: fault; energy spectral; spectral kurtosis; teager energy ... See more keywords
Teager Energy Operator for Fast Estimation of Three-Phase Grid Frequency
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DOI: 10.1109/tim.2020.3027927
Abstract: This article proposes a fundamental frequency estimation technique for three-phase voltage systems under unbalanced and harmonic conditions. It is based on the Clarke transformation, recursive discrete Fourier transform, and Teager energy operator. The proposed technique… read more here.
Keywords: three phase; energy operator; frequency; teager energy ... See more keywords
Teager Energy Entropy Ratio of Wavelet Packet Transform and Its Application in Bearing Fault Diagnosis
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DOI: 10.3390/e20050388
Abstract: Kurtogram can adaptively select the resonant frequency band, and then the characteristic fault frequency can be obtained by analyzing the selected band. However, the kurtogram is easily affected by random impulses and noise. In recent… read more here.
Keywords: frequency; teager energy; band; frequency band ... See more keywords