Research on Feature Extraction of Performance Degradation for Flexible Material R2R Processing Roller Based on PCA

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2020/8812660/figures/8812660.fig.005a.svgz" name="8812660.fig.005a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Centre of gravity frequency</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2020/8812660/figures/8812660.fig.005b.svgz" name="8812660.fig.005b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>RMS of frequency</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2020/8812660/figures/8812660.fig.005c.svgz" name="8812660.fig.005c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Frequency standard deviation</td></tr></table>

<div>Calculations of center of gravity frequency, frequency root mean square, and frequency standard deviation.</div>

International Journal of Rotating Machinery

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Figure 5

Figure 5: Research on Feature Extraction of Performance Degradation for Flexible Material R2R Processing Roller Based on PCA 