Probabilistic Entropy EMD Thresholding for Periodic Fault Signal Enhancement in Rotating Machine

Figure 17

Experimental results of vibration signals under the wear of floating tile: (a) denoised signals of EMD-PR, (b) frequency spectrum of EMD-PR, (c) denoised signals of EMD-DT, (d) frequency spectrum of EMD-DT, (e) denoised signals of EMD-IT, (f) frequency spectrum of EMD-IT, (g) denoised signals of EMD-PE, and (h) frequency spectrum of EMD-PE.

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