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列车晃动对行车安全有重要影响。针对某隧道内部列车行驶时发生的颠簸现象,对隧道内进行了高程测量,根据高程测量结果与原设计高程的差异,提出了轨道不平整分析模型;然后结合现有的列车横向数学模型(1/2模型),采用MATLAB/SIMULINK软件进行了列车晃动分析,得到了不同轨道情况以及不同车速的情况下,列车竖向加速度和横向加速度的变化规律,最后依据铁路运行安全评价标准,对不同轨道状况与行车速度条件下晃动程度进行了评价,提出了在不同轨道情况下的最大安全速度。
Train sway has a significant impact on driving safety. According to the jolting phenomenon of a train traveling in a tunnel, the height measurement of the tunnel is carried out. According to the differences between the elevation measurement results and the original design elevation, an analysis model of the rail irregularity is proposed. Then, based on the existing train lateral mathematical model / 2 model), the train sway analysis is carried out by using MATLAB / SIMULINK software, and the variation rules of vertical acceleration and lateral acceleration of the train under different orbit conditions and different vehicle speeds are obtained. Finally, according to the railway safety evaluation criteria, Conditions and speed under the conditions of shaking was evaluated, proposed in the case of different orbital maximum safety speed.