Research Article

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

Figure 6

Artificial defects on the components of the axle box bearing: (a) axle box bearing; (b) defect on the outer race; (c) defect on the inner race; (d) defect on the rollers.
(a)
(b)
(c)
(d)