空重车混编对列车稳定性的影响

为了考察空重车混编列车的稳定性,建立了混编列车动力学模型,利用循环变量法解决了列车的"自由度爆炸"难题,利用模块化建模法解决了列车混合编组的建模难题,而且充分考虑了列车纵向、横向和垂向性能之间的耦合关系.利用新型的列车动力学模型,分析了空重罐车各种不同的编组形式对列车稳定性的影响.发现空罐车编组在列车尾部和头部时的稳定性较差,而编组在列车中部时的稳定性较好,因此在空重罐车混和编组时,为了提高列车稳定性,尽量把空罐车编组在列车的中部.

Mixed marshalling influence of light vehicles and heavy vehicles on train stability

In order to study the stability of mixed marshalling train with light vehicles and heavy vehicles, a dynamics model of mixed marshalling train was set up. Circular-variable method was utilized to resolve the difficult problem of train freedom degrees blast, blocking modelling method was utilized to resolve the difficult problem of mixed marshalling modelling, and the coupling relation among the longitudinal, lateral and vertical performances of train was considered. The model was utilized to analyze train stability under all kinds of mixed marshalling cases about light tank cars and heavy tank cars. It is pointed that the stability of light tank cars placed into the front and back of train is worse than that of light tank cars placed into the middle of train. So in order to increase the stability of mixed marshalling train, the light tank cars should be placed into the middle of train. 6 figs, 11 refs.