Research Article

Stochastic Resonance with a Joint Woods-Saxon and Gaussian Potential for Bearing Fault Diagnosis

Figure 13

Optimal outputs of different models with outer-race fault signal: (a) original waveform and its power spectrum, (b) envelope signal and its spectrum filtered with [500 Hz and 2500 Hz], (c) output of bistable SR model and its spectrum with and , (d) output of WSGSR model and its power spectrum with , , , and (WSSR), and (e) output of WSGSR model and its power spectrum with , , , , and .
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