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长大重载列车系统动力学

, PP. 34-40

Keywords: 铁道车辆,重载列车,系统动力学,牵引工况,制动工况,惰行工况,循环变量法

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Abstract:

利用循环变量法解决了长大重载列车的自由度难题,考虑了列车纵向、横向和垂向性能之间的耦合关系,建立了长大重载列车三维空间耦合动力学模型,分析了牵引、制动和惰行工况下的长大重载列车在直线轨道、曲线轨道和坡道上的动力学性能。仿真结果表明在牵引工况下,列车头部和尾部车辆比列车中部车辆的动力学性能差;在制动工况下,列车中部车辆比列车头部和尾部车辆的动力学性能差;在惰行工况下,列车不同位置车辆的动力学性能差别较小;在曲线轨道上,3种工况对列车动力学性能影响最大,所以应尽量以牵引、制动工况通过直线轨道,以惰行工况通过曲线轨道。

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