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由高圆簧和橡胶弹簧串联组成的机车车辆悬挂系统为超静定结构 ,将弹性杆理论应用于由不同材料特性组成的弹性杆超静定系统 ,首次导出了由高圆簧两端串联结构几何参数和特性参数相同的橡胶弹簧组成的机车车辆悬挂系统的横向刚度关系式。理论分析表明 ,复合弹簧系统的横向刚度仅取决于弹簧本身的结构几何参数、材料特性参数和承受的垂向载荷大小 ,与复合弹簧系统是否承受横向载荷和是否产生横向变形无关。理论分析结果与试验结果相吻合 ,具有较高的计算精度 ,满足设计应用的需要
The suspension system of rolling-stock with high-round spring and rubber spring series is a statically indeterminate structure. The theory of elastic-rod is applied to the elastic rod statically indeterminate system composed of different material properties. For the first time, The relationship between the transverse stiffness of the vehicle suspension system composed of rubber springs with the same geometric parameters and characteristic parameters. The theoretical analysis shows that the transverse stiffness of the composite spring system depends only on the geometric parameters of the spring itself, the material properties and the vertical load to be received, regardless of whether the composite spring system is subjected to lateral load and whether transverse deformation is produced. The theoretical analysis results are consistent with the experimental results, with high calculation accuracy and meet the needs of design and application