An Enhanced VMD with the Guidance of Envelope Negentropy Spectrum for Bearing Fault Diagnosis

<div>Multicomponents data in Figure <a href="../fig28/#a">28(a)</a> processed by different methods: (a) optimal mode extracted by the fixed-parameter VMD and (b) its envelope spectrum; (c) optimal mode extracted by PSO-based VMD and (d) its envelope spectrum.</div>

Complexity

fig34

Figure 34

Figure 34: An Enhanced VMD with the Guidance of Envelope Negentropy Spectrum for Bearing Fault Diagnosis 