Rotating Machine Fault Diagnosis Based on Optimal Morphological Filter and Local Tangent Space Alignment

<div>Comparison of denoising results obtained by the optimal filter, the morphological filter of flat SE, and the wavelet of Morlet, for the vibration signal of a roller bearing with an outer-race fault: (a) the original signal, (b) the wavelet of Morlet, (c) the morphological filter of flat SE, and (d) the optimal filter.</div>

Shock and Vibration

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Figure 5

Figure 5: Rotating Machine Fault Diagnosis Based on Optimal Morphological Filter and Local Tangent Space Alignment 