A Novel Method for Adaptive Multiresonance Bands Detection Based on VMD and Using MTEO to Enhance Rolling Element Bearing Fault Diagnosis

Figure 11

Enhanced waveform and its power spectrum by the proposed method: (a) enhanced waveform of the second mode by TEO; (b) enhanced waveform of the third mode by TEO; (c) enhanced waveform of the second mode by MTEO; (d) power spectrum of the second mode enhanced waveform by MTEO; (e) enhanced waveform of the third mode by MTEO; (f) power spectrum of the third mode enhanced waveform by MTEO; (g) enhanced waveform of the combined mode; (h) power spectrum of the combined mode enhanced waveform.

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