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

Figure 15

The time domain diagram of the training signals, where (a), (b), and (c) represent normal bearing signal, inner race fault signal, and outer race fault signal come from the snapshots 2003.10.31.08.59.46, 2003.11.22.11.06.56, and 2004.02.15.10.32.39, respectively. Each signal is listed with the sample number 5120.

(a)

(b)

(c)