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1.前言在提高原有线路车辆速度时,制动方面存在的很大问题,是使车辆达到紧急制动距离限制在600m以内及注意信号区间内限速45公里/时(即在操纵常用制动时,要求从运行速度减到45km/h的距离不超过600m)的规定要求。在论述速度和制动距离问题时,制动距离S可运用下式容易地求得。式中:V_0:制动初速度(km/h) V_1:任意运行速度,例如45km/h t_0:到产生制动效能为止的空走时间(s) β:从全制动距离减除空走距离后的实际制动距离的平均减速度(kin/h/s) i:线路坡度,上坡道为正,下坡道为负。把该式右边的第1项称空走距离,第2项称实际制动距离。由于列车的速度提高,
1. Preface In improving the speed of the existing line vehicles, the brake has a big problem that is to make the vehicle reach the emergency braking distance within 600m and pay attention to the signal speed limit 45 km / h (that is, When required, from the operating speed reduced to 45km / h distance of not more than 600m) requirements. In discussing the speed and braking distance problems, the braking distance S can be easily calculated using the following equation. Where: V_0: initial brake speed (km / h) V_1: arbitrary operating speed, for example 45km / h t_0: Freewheeling time (s) until braking efficiency is generated β: Average deceleration after actual braking distance (kin / h / s) i: Line slope, uphill positive and downhill negative. The right side of the first item called empty distance, the second said the actual braking distance. As the train speed increases,