Comprehensive Evaluation Model of Bearing Transportation Protection Effect of Bogie Traction Motor under Data Imbalance

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/js/volume-2021/4690369/figures/4690369.fig.0016a.svgz" name="4690369.fig.0016a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Reconstruction signal based on DCT representation</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/js/volume-2021/4690369/figures/4690369.fig.0016b.svgz" name="4690369.fig.0016b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Reconstruction signal based on DFT representation</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/js/volume-2021/4690369/figures/4690369.fig.0016c.svgz" name="4690369.fig.0016c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Reconstruction signal based on DWT representation</td></tr></table>

<div>Comparison of reconstructed signals.</div>

Journal of Sensors

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Figure 16

Figure 16: Comprehensive Evaluation Model of Bearing Transportation Protection Effect of Bogie Traction Motor under Data Imbalance 