A Roller Bearing Fault Diagnosis Method Based on LCD Energy Entropy and ACROA-SVM

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="825825.fig.001a" src="https://static.hindawi.com/articles/sv/volume-2014/825825/figures/825825.fig.001a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>A sine signal</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="825825.fig.001b" src="https://static.hindawi.com/articles/sv/volume-2014/825825/figures/825825.fig.001b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>An AM signal</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="825825.fig.001c" src="https://static.hindawi.com/articles/sv/volume-2014/825825/figures/825825.fig.001c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>A FM signal</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="825825.fig.001d" src="https://static.hindawi.com/articles/sv/volume-2014/825825/figures/825825.fig.001d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>An AM-FM signal</td></tr></table></td></tr></table>

<table>Four types of typical signal owning instantaneous frequency with physical meaning.</table>

Shock and Vibration

fig1

Figure 1

Figure 1: A Roller Bearing Fault Diagnosis Method Based on LCD Energy Entropy and ACROA-SVM 