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

<div>(a) The diagnostic accuracy based on the LS-WSVM optimized by PSO, GA, and GS, respectively; (b) the consuming time of PSO, GA, and GS, respectively.</div>

Shock and Vibration

fig11

Figure 11

Figure 11: A Novel Fault Diagnosis Model for Bearing of Railway Vehicles Using Vibration Signals Based on Symmetric Alpha-Stable Distribution Feature Extraction 

Figure 11 | A Novel Fault Diagnosis Model for Bearing of Railway Vehicles Using Vibration Signals Based on Symmetric Alpha-Stable Distribution Feature Extraction 