Train Wheelset Bearing Multifault Impulsive Component Separation Using Hierarchical Shift-Invariant Dictionary Learning

<div>Separated impulsive components for the outer race fault using the proposed method: (a) SES values for the different number of iterations; (b) separated impulse signal for the outer race fault; (c) Fourier spectrum of (b); (d) Hilbert envelope spectrum of (c).</div>

Shock and Vibration

fig14

Figure 14

Figure 14: Train Wheelset Bearing Multifault Impulsive Component Separation Using Hierarchical Shift-Invariant Dictionary Learning 