基于Pathfinder的地铁列车安全疏散仿真研究

Research on Simulation of Safety Evacuation of Subway Vehicles Based on Pathfinder

地铁列车的安全疏散直接影响司乘人员的安全出行。本文结合计算机模拟技术提出了基于Pathfinder的地铁列车安全疏散仿真分析约束,并以成都地铁(4编组)车辆为例进行了人员安全疏散仿真分析研究:首先根据地铁列车的设计方案构建虚拟仿真模型;然后通过设置相关参数,使疏散人群中每个个体的疏散路径走向进行图形化的虚拟演练,从而准确计算出每个个体的疏散时间;最后基于仿真数据来评估危险工况逃生的安全性。案例研究表明:该多人员构成的安全疏散仿真分析能够有效评估多工况条件下地铁列车设计方案的安全疏散能力,可为设计研发具有良好安全疏散特性的地铁列车提供参考依据。

The safe evacuation of subway vehicles directly affects the safe travel of drivers and passengers. Combined with computer simulation technology, this paper puts forward the simulation and analysis constraint conditions of subway vehicle safety evacuation based on Pathfinder, and takes Chengdu subway (4-group) vehicles as an example to carry out the simulation and analysis of personnel safety evacuation: first, building a virtual simulation model according to the design scheme of subway vehicles;Then, by setting the relevant parameters, the movement of each individual in the evacuation crowd is simulated graphically, so as to accurately calculate the evacuation time of each individual;Finally, the safety of escape in case of danger is evaluated based on the simulation results. The case study shows that: The safe evacuation simulation analysis of multi-personnel composition can effectively evaluate the safety evacuation ability of the design schemes of subway vehicles under multiple working conditions, and can provide a reference for the design and development of subway vehicles with good safety evacuation characteristics.