Study on Frequency Characteristics of Rotor Systems for Fault Detection Using Variational Mode Decomposition

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2017/7218646/figures/7218646.fig.0011a.svgz" name="7218646.fig.0011a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Hilbert spectrum of the VMD results</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2017/7218646/figures/7218646.fig.0011b.svgz" name="7218646.fig.0011b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Hilbert spectrum of the EEMD results</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2017/7218646/figures/7218646.fig.0011c.svgz" name="7218646.fig.0011c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Hilbert spectrum of the EMD results</td></tr></table>

<div>Hilbert spectrum of the VMD, EEMD, and EMD results of oil whip signal.</div>

International Journal of Rotating Machinery

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Figure 11

Figure 11: Study on Frequency Characteristics of Rotor Systems for Fault Detection Using Variational Mode Decomposition 