A Novel Detrended Fluctuation Analysis Method for Gear Fault Diagnosis Based on Variational Mode Decomposition

<div>The calculation result using VMD for gear fault signal. (a) <i>u</i>1, (b) <i>u</i>2, and (c) <i>u</i>3 are three decomposed mode components of the gear fault signal, respectively.</div>

Shock and Vibration

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Figure 4

Figure 4: A Novel Detrended Fluctuation Analysis Method for Gear Fault Diagnosis Based on Variational Mode Decomposition 