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

Table 4

Scale parameter γ values of IMFs (c1–c5).

Fault ID	IMF1	IMF2	IMF3	IMF4	IMF5
F1	0.0028	0.0017	0.0182	0.0437	0.0113
F2			0.0152	0.0115	0.0040
F3	0.0015	0.0013	0.0258	0.0107	0.0038
F4			0.0094	0.0091	0.0037
F5	0.0035	0.0021	0.0097	0.0268	0.0110
F6			0.0054	0.0118	0.0135
F7			0.0073	0.0084	0.0047