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

Figure 24

Gear signal testing device. (a) Physical object of the device and (b) structure diagram of test device: (1) AC motor; (2) coupling; (3) gearbox; (4) dynamometers; and (5) magnetic powder brake.

(a)

(b)