Figure21
![Performance assessment of pantograph and overhead system based on a vertical coupling dynamics model of the railway system](https://image.oaes.cc/c3d24b9b-277e-4062-b5a7-5019f9174e00/4938-21.jpg)
Figure 21. Comparison of contact force between traditional tack and ballastless track.
Figure 21. Comparison of contact force between traditional tack and ballastless track.
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