Research on Fault Feature Extraction of Hydropower Units Based on Adaptive Stochastic Resonance and Fourier Decomposition Method

<div>Actual signal processed by FDM. (a) <i>Y</i>-direction swing signal at the flange. (b) Vibration signal at the draft tube.</div>

Shock and Vibration

Figure 6: Research on Fault Feature Extraction of Hydropower Units Based on Adaptive Stochastic Resonance and Fourier Decomposition Method 