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论文: 列车脱轨后运行姿态模拟

(2014-10-25 21:26:19)
标签:

列车

脱轨

模拟

分类: 结构与有限元

列车脱轨后运行姿态模拟

朱 翔,陆新征,杜永峰,王 强

振动与冲击, 2014, 33(23): 145-149.

论文: <wbr>列车脱轨后运行姿态模拟 论文: <wbr>列车脱轨后运行姿态模拟 

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摘要:列车脱轨后撞击站房建筑可能会造成严重后果。而国内外相关研究几乎还是空白。本文采用非线性有限元软件,建立列车、铁轨和地面的有限元模型,通过人为引入障碍物,诱使列车脱轨,分析了脱轨后列车的运行姿态,以及不同地面摩擦系数的影响。研究表明:地面的摩擦系数会影响脱轨后火车的速度和运行时间,脱轨后车厢之间有明显的拉拽碰撞作用,后面车厢会明显挤压前面的车厢,列车呈“蛇形”运动,可能与列车两侧约6.68m范围内的物体发生碰撞。
关键词:列车;脱轨;摩擦系数;运行轨迹

Simulation for the Running Attitude of Trains after Derailment

ZHU Xiang, LU Xin-zheng, DU Yong-feng, WANG Qiang

Journal of Vibration and Shock, 2014, 33(23): 145-149.

Abstract: The derailed train may impact station buildings, which will cause serious consequences. But the corresponding research is still very limited. In the paper, the finite element models of the train, the railway and the ground is built up with nonlinear finite element software. By introducing an artificial obstacle, the train derailment and the attitude of the train after the derailment are simulated. The influence of various friction coefficients of the ground is discussed. The simulation results show that the friction coefficients of the ground will influence the speed and running time after the derailment. Significant pulling and collision between different cars of the train can be observed. The rear cars will push the front cars, which make the train moves in a “snake like” attitude. The train may collide with objects within 6.68m beside the railway.
Key words: train; derailment; friction coefficient; running attitude

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