This paper established a lateral stiffness coupling model to investigate the lateral characteristics of air spring system under crosswind conditions. The nonlinear super-elastic characteristics, coupling characteristics of the air spring, lateral stiffness characteristics of emergency spring, and damping force are studied. The accuracy of the lateral stiffness model is validated by comparing with experimental data. In addition, the impact of geometric parameters on the lateral stiffness characteristics is discussed by a sensitivity analysis method, as well as the effect of the lateral stiffness model on vehicle mechanical performance is analyzed. The conclusions show that the lateral stiffness model can well predict the lateral characteristics of the air spring system, and provide theoretical guidance for the parameter design of rail vehicles and vehicle ride comfort improvement.

本文建立了侧向刚度耦合模型，以研究侧风条件下空气弹簧系统的侧向特性。研究了非线性超弹性特性，空气弹簧的耦合特性，紧急弹簧的侧向刚度特性以及阻尼力。通过与实验数据进行比较来验证横向刚度模型的准确性。此外，通过敏感性分析方法讨论了几何参数对横向刚度特性的影响，并分析了横向刚度模型对车辆机械性能的影响。结论表明，侧向刚度模型可以很好地预测空气弹簧系统的侧向特性，