城市轨道交通信号系统对曲线段速度要求的计算

黄克勇

Calculation of Curve Speed in Urban Rail Transit Signaling System

HUANG Keyong
摘要:
研究了城市轨道交通信号系统关于曲线路段最高运行速度的计算方法和流程。利用轨道专业和车辆专业等提供的标高、运营速度、车重等信息,以信号的安全制动模型为基础,在运营情况下,计算触发紧急制动后能达到的最高紧急制动触发速度,以及最高速度下的横向加速度和横向冲击率(Jerk)。如果计算出的这两项结果满足国家标准,则符合要求;如果计算结果不满足国家标准,通常采用的解决方法是让轨道专业或信号专业对相应数据进行调整。给出了详细的计算公式,并对一条实际的城市轨道交通运营线路的曲线段进行了计算。
Abstracts:
The calculation method and process of the maximum running speed at curve section in urban rail transit signaling system is studied. Making use of the information of elevation, operation speed and vehicle weight provided by other specialties such as track specialty and vehicle specialty, taking the signaling safety braking model as base, the maximum emergency braking trigger speed and the maximum lateral acceleration and lateral impact rate (Jerk) after triggering emergency braking at operating speed are calculated. If these two calculated results meet the national standards, then the requirements are fulfilled. If the calculation results do not meet the requirements of the national standards, the common solution is for the track specialty or signal specialty to adjust relevant data accordingly. Detailed calculation formula is given and the curve section of an actual urban rail transit operation line is calculated.
引文 / Ref:
黄克勇.城市轨道交通信号系统对曲线段速度要求的计算[J].城市轨道交通研究,2021,24(5):21.
HUANG Keyong.Calculation of Curve Speed in Urban Rail Transit Signaling System[J].Urban mass transit,2021,24(5):21.
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