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

Figure 5

Outputs signal of different SR models with a sinusoidal signal mixed with noise: (a) sinusoidal signal, (b) original signal mixed with noise, (c) traditional bistable potential with 𝑎=1, 𝑏=1, (d) WSGP with 𝑉₁=3, 𝑅₁=2, 𝑎=0.02, 𝑉₂=0.25, and 𝑅₂=0.05, (e) and (f) outputs of the two different models with noise intensity of 1.5 and driving frequency of 100 Hz, (g) and (h) outputs of the two different models with noise intensity of 3 and driving frequency of 100 Hz, and (i) and (j) outputs of the two different models with noise intensity of 1.5 and driving frequency of 50 Hz.

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