机械

列车追踪间隔时间是确保铁路交通安全、高效、灵活的关键因素之一。为探究动车组运行速度和制动性能对列车追踪间隔时间的具体影响，以期找到缩短追踪间隔时间的有效策略，采用制动台架试验的方法，测试了不同制动性能和不同运行速度的制动距离，并分析了车辆制动性能和运行速度如何影响列车追踪间隔时间。结果表明，制动距离是决定列车追踪间隔时间的关键因素。在较低的制动压力下，难以实现180 s的追踪间隔。随着列车运行速度的增加，制动距离显著增长；但通过提升制动性能，可以有效减少制动距离，从而抵消速度提高带来的不利影响。制动性能在调整和优化列车追踪间隔时间中十分重要。提高列车的制动性能、缩短制动距离，是降低追踪间隔时间并提升铁路运输效率的有效策略。

Train headway is one of the key factors in ensuring the safety, efficiency, and flexibility of rail transportation. This study aims to investigate the specific impact of high-speed train operating speed and braking performance on train headway, with the goal of identifying effective strategies to reduce headway. Through brake bench tests, the braking distances at different braking performances and operating speeds are measured,and the factors influencing train headway are analyzed. The results indicate that braking distance is a critical factor in determining train headway. Under lower braking loads, achieving a 180 s headway is challenging. As the train operating speed increases, the braking distance significantly extends. However, improving the braking performance can effectively reduce the required braking distance, thus mitigating the adverse effects of increased speed. Braking performance is crucial in adjusting and optimizing train headway. Enhancing the braking performance of trains and shortening the braking distance are effective strategies to reduce train headway and improve the efficiency of rail transport.