A Novel Fault Diagnosis Model for Bearing of Railway Vehicles Using Vibration Signals Based on Symmetric Alpha-Stable Distribution Feature Extraction

Table 6

Fault diagnosis result of the proposed fault diagnosis method based on and PSO-LS-WSVM.

Fault feature	Faults classification result (%)
	F1	F2	F3	F4	F5	F6	F7	Average accuracy
α	80	100	100	100	55	100	85	88.57
γ	100	80	85	100	85	100	100	92.86
MPDF	100	85	80	90	100	100	100	93.57
Hybrid feature set	100	90	100	95	85	100	100	95.71