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

Table 5

MPDF values of IMFs (c1–c5).

Fault ID	IMF1	IMF2	IMF3	IMF4	IMF5
F1	99.2876	162.8502	16.5710	6.4530	24.9091
F2	299.4869	325.4653	23.8567	24.6207	71.4203
F3	182.225	230.6710	11.7176	26.2765	74.7419
F4	306.0803	422.6269	33.5958	31.0184	77.1418
F5	80.7348	134.6213	29.1551	10.5104	25.6892
F6	319.6866	499.6525	54.0628	24.0175	20.8936
F7	411.6718	615.8217	41.7425	33.5575	59.5689