Incipient Gearbox Fault Diagnosis Based on the Reverse State Transformation of the Chaotic Duffing Oscillator and Sampling Integral Technology

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/535398/figures/535398.fig.001a.svgz" name="535398.fig.001a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Homoclinic orbit</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/535398/figures/535398.fig.001b.svgz" name="535398.fig.001b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Forking orbit</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/535398/figures/535398.fig.001c.svgz" name="535398.fig.001c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Chaos orbit</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/535398/figures/535398.fig.001d.svgz" name="535398.fig.001d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Large-scale periodic orbit</td></tr></table>

<div>Duffing oscillator conversion.</div>

Mathematical Problems in Engineering

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Figure 1

Figure 1: Incipient Gearbox Fault Diagnosis Based on the Reverse State Transformation of the Chaotic Duffing Oscillator and Sampling Integral Technology 

Figure 1 | Incipient Gearbox Fault Diagnosis Based on the Reverse State Transformation of the Chaotic Duffing Oscillator and Sampling Integral Technology 