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

Figure 12

The frequency domain diagram of multiresolution DMD modes of the roller fault signal, where (a)–(h) are corresponding to signals in Figure 8, respectively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)