长大货物车回送时混编列车纵向冲动分析

Analysis of Mixed Marshalling Train Longitudinal Impulse During Oversize Commodity Car Delivery

使用空气制动系统与纵向动力学联合仿真系统,计算1辆HXD1机车+60辆载重C70车辆+1辆HXD1机车短编组列车加挂350 t落下孔车回送运行施行紧急制动的列车纵向冲动,分析350 t落下孔车编组位置、前后机车操纵同步性对回送列车的纵向动力学影响.仿真分析表明,主控机车和从控机车操作同步性能的好坏直接决定了整列车纵向动力学性能,350 t落下孔长大货物车的位于列车中部时列车最大车钩力增幅最小.

A 350 t well-hole car is added to the marshalling train with one HXD1 locomotive ＋ sixty laden C70 vehicles ＋ one HXD1 locomotive. The co-simulation systems of the train air brake and longitudinal dynamics are used to simulate the longitudinal impulse of the train emergency braking, and the effects of the locomotives control synchronization and the 350 t well-hole car marshalling location on the train longitudinal impulse are analyzed. The result show that the master and slave controls of the locomotive synchronized operation perform- ance determine the whole train longitudinal dynamic performance, and the train maximum coupling force has the smallest increase, while the 350 t well-hole car is in the middle of the train.