高速列车并行运行风致安全性分析

Wind induced Safety Analysis of High-speed Trains in Parallel Running

结合高速列车的空气动力学和多体系统动力学,研究300 km/h高速列车并行运行时的风致安全性。在研究中,建立包含由头车厢、中间车厢、尾车厢组成的正线列车和由一节头车厢、一节尾车厢组成的中转列车的高速列车空气动力学模型,分析不同线间距与通道占比情况下高速列车并行运行时的气动载荷变化规律。在此基础上,建立高速列车并行运行时的多体系统动力学模型,将气动载荷作为外加负载作用于高速列车,分析高速列车的运行安全性,进而为300 km/h高速列车受侧风影响时的安全并行运行提供参考。

Combining the aerodynamics and multi body system dynamics of the high speed train,the wind induced safety of 300 km/h high speed trains in parallel running was studied.In the study,an aerodynamic model of high speed trains including a main line train consisting of a head car,middle cars,and a tail car and a transit train consisting of a head car and a tail car was established to analyze the aerodynamic load variation law of high speed trains in parallel running with different spaces between lines and different passageway ratios.On this basis,a multi body system dynamics model of high speed trains in parallel running was established,aerodynamic load was applied to the high speed trains as an external load,and the safety running of high speed trains was analyzed to provide a reference for safe parallel running of 300 km/h high speed trains that are subjected to crosswind effect.