Fault Diagnosis of Axial Piston Pump Based on Extreme-Point Symmetric Mode Decomposition and Random Forests

Figure 16

Test results of fault diagnosis model for axial piston pump. (a) The normal state of fault free. (b) The fault state of single slipper wear. (c) The fault state of single loose slipper. (d) The fault state of swash plate wear. (e) The fault state center spring wear.

(a)

(b)

(c)

(d)

(e)