A Fault Diagnosis Method for One-Dimensional Vibration Signal Based on Multiresolution tlsDMD and Approximate Entropy

Figure 34

The frequency domain diagram of multiresolution DMD modes of and wear gear signal, where (a)–(h) are corresponding to signals in Figure 30, respectively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)