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主要分析自动车钩的弹簧刚度和阻尼系数对列车纵向动力学的影响。采用了非线性模型,此模型由1台机车和3辆货车组成,它们之间有3个自动车钩。通过分析研究表明,车钩的最大拉钩力和压钩力都会随着弹簧刚度的增大而增大,而车钩力的均方根值则会随着弹簧刚度的增大而减小。阻尼系数对列车纵向动力学的影响则是:最大压钩力会随着阻尼系数的增大而增大,而最大拉钩力和车钩力均方根值会随着阻尼系数的增大而减小。
This paper mainly analyzes the influence of the spring stiffness and damping coefficient of the auto coupler on the longitudinal dynamics of the train. A non-linear model was used, which consisted of a locomotive and three trucks with three automatic coupler between them. The analysis shows that the maximum hooking force and pressing force of the coupler will increase with the increase of the spring stiffness, while the root mean square of the coupler force will decrease with the increase of the spring stiffness. The influence of damping coefficient on the longitudinal dynamics of the train is that the maximum hooking force will increase with the increase of the damping coefficient while the maximum hooking force and the root mean square of the hook force will decrease with the increase of the damping coefficient .