Peak-Based Mode Decomposition for Weak Fault Feature Enhancement and Detection of Rolling Element Bearing

Figure 9

Processing result of the vibration signal induced by the outer race fault. (a) Envelope demodulation; (b) peak-based wavelet decomposition; (c) parameter-optimized peak-based wavelet decomposition; (d) proposed peak-based mode decomposition.

(a)

(b)

(c)

(d)