An Integrated Health Condition Detection Method for Rotating Machinery Using Refined Composite Multivariate Multiscale Amplitude-Aware Permutation Entropy

Figure 16

The entropy results of gearbox data analyzed by adopting five approaches. (a) RCmvMAAPE; (b) RCmvMPE; (c) mvMAAPE; (d) RCmvMSE; (e) RCMAAPE.

(a)

(b)

(c)

(d)

(e)