Bearing Fault Diagnosis Using Synthetic Quantitative Index-Based Adaptive Underdamped Stochastic Resonance

<div>Analyzed results of the inner race fault signal: (a) envelope signal; (b) envelope signal after removing the rotation frequency fR and its harmonic 2fR; (c) SNR-AOSR output with [(H), (K)] = [0.140, 100]; (d) SQI-AUSR output with [(H), (K), γ] = [72.629, 0.594, 1.996].</div>

Mathematical Problems in Engineering

fig9

Figure 9

Figure 9: Bearing Fault Diagnosis Using Synthetic Quantitative Index-Based Adaptive Underdamped Stochastic Resonance 