在不同的初始接触力下,对鞋具-轨道合器振动的数值模拟
Tong Xing1, Peihuo Peng2, Like Pan3
1Standards & Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, 100015, China.
Scientific reports
|March 23, 2024
概括
在城市轨道交通中较低的初始接触力.
科学领域:
- 城市铁路交通工程
- 机械振动 机械振动 机械振动
- 接触力学 接触力学
背景情况:
- 导体铁路电源对于城市铁路运输至关重要.
- 了解鞋轮轨道系统动态对于火车的性能和安全至关重要.
研究的目的:
- 为了建立一个合模型的鞋-轨道系统.
- 为了研究不同初始接触力下的动态性能.
主要方法:
- 开发了鞋-轨道系统的合模型.
- 进行了不同初始接触力 (70-160 N) 的数值模拟.
主要成果:
- 增加的初始接触力导致电动鞋装的振动幅度更高.
- 较高的初始接触力也增加了接触力波动.
- 导体轨道上的最大绝对切削力随着初始接触力更高而下降.
结论:
- 较低的初始接触力通常会提高鞋轨道系统的性能.
- 研究结果表明,最优的初始接触力范围可提高安全性和效率.
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