Pointing at the deficiencies of the existing methods for fault pattern classification of gearboxes,based on the Hilbert-Huang Transform(HHT),fault pattern classification method of gearbox of time-frequency spectrogram is presented.First,by the HHT method,and the time-frequency spectrogram of four different signals from a faulty gearbox is obtained.Furthermore,according to the distinct characteristics of the spectrogram,a fault pattern classification of gearbox is carried out.Moreover,for the similar fault p...
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