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由于受我国螺旋压缩圆弹簧制造材料和制造工艺的限制 ,为了降低高圆簧的工作应力 ,铁道车辆转向架二系弹簧悬挂系统采用并联高圆簧一端串联橡胶弹簧结构 ,本文基于弹性杆理论 ,建立了高圆簧和橡胶弹簧的力和力矩与线位移和角位移关系式 ,首次导出了并联高圆簧一端串联橡胶弹簧系统的水平方向刚度分析的直接求解方法 ,系统的稳定性取决于水平方向刚度值的大小 ,当系统的水平方向刚度趋于零时系统所承受的垂向载荷即为系统的临界载荷。当系统的水平方向刚度大于零时 ,系统为稳定系统 ;当系统的水平方向刚度小于零时 ,系统为不稳定系统。
In order to reduce the working stress of high-round spring, the second-class spring suspension system of railway vehicle bogie adopts parallel high-spring one-end series rubber spring structure.Based on the theory of elastic rod, The relationship between the force and moment, the line displacement and the angular displacement of the high-round spring and the rubber spring is established. The direct solution to the horizontal stiffness analysis of a series-connected rubber spring system with parallel high-torsional spring is derived for the first time. The stability of the system depends on the level The magnitude of directional stiffness value, when the horizontal stiffness of the system tends to zero, the vertical load that the system is subjected to is the critical load of the system. When the horizontal stiffness of the system is greater than zero, the system is a stable system; when the horizontal stiffness of the system is less than zero, the system is an unstable system.