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.0013a.svgz" name="4690369.fig.0013a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Discrete Fourier sparse transform (real part)</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/js/volume-2021/4690369/figures/4690369.fig.0013b.svgz" name="4690369.fig.0013b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Discrete Fourier sparse transform (imaginary part)</td></tr></table>

Journal of Sensors

fig13

Figure 13

Figure 13: Comprehensive Evaluation Model of Bearing Transportation Protection Effect of Bogie Traction Motor under Data Imbalance 