Numerical Modeling and Investigation on Aerodynamic Noise Characteristics of Pantographs in High-Speed Trains

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/complexity/volume-2018/6932596/figures/6932596.fig.0015a.svgz" name="6932596.fig.0015a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>The first main frequency = 293 Hz</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/complexity/volume-2018/6932596/figures/6932596.fig.0015b.svgz" name="6932596.fig.0015b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>The second main frequency = 586 Hz</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/complexity/volume-2018/6932596/figures/6932596.fig.0015c.svgz" name="6932596.fig.0015c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>The third main frequency = 880 Hz</td></tr><tr class="fig-image" id="d"><td><object data="https://static-preview.hindawi.com/articles/complexity/volume-2018/6932596/figures/6932596.fig.0015d.svgz" name="6932596.fig.0015d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>The fourth main frequency = 1173 Hz</td></tr></table>

<div>Aerodynamic noise radiation of pantographs in high-speed trains.</div>

Complexity

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Figure 15

Figure 15: Numerical Modeling and Investigation on Aerodynamic Noise Characteristics of Pantographs in High-Speed Trains 