Shock and Vibration / 2019 / Article / Fig 14

Research Article

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

Figure 14

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).
(a)
(b)
(c)
(d)

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