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以高速动车组用某型空气弹簧为研究对象,基于非线性、轮胎方程和流固耦合理论,利用ABAQUS有限元分析软件对其进行建模分析。通过相关试验验证了仿真的有效性,然后同时改变附加气室容积和标准高、同时改变附加气室容积和帘线参数,以探究复合参数对垂向刚度的影响。结果表明:附加气室容积越大,随着标准高的增大空气弹簧垂向刚度增加得越快;无附加气室时,帘线层数和帘线间距对垂向刚度影响较大;有附加气室时,帘线层数和帘线间距对其垂向刚度影响较小;在一定范围内,无论附加气室容积多大,帘线角度对垂向刚度的影响都较大。
Taking a type of air spring for high speed EMUs as the research object, the ABAQUS finite element analysis software was used to analyze the model based on nonlinear, tire equations and fluid-solid coupling theory. The validity of the simulation was verified by relevant experiments. At the same time, the additional gas chamber volume and standard height were changed. At the same time, the additional gas chamber volume and cord parameters were changed to explore the effect of composite parameters on the vertical stiffness. The results show that the bigger the additional gas chamber volume is, the faster the vertical stiffness of the air spring increases with the increase of the standard height. When there is no additional gas chamber, the influence of the cord layer and cord spacing on the vertical stiffness is significant. When the air chamber is added, the influence of the cord angle and the cord spacing on the vertical stiffness is small. The influence of the cord angle on the vertical stiffness is large regardless of the additional air chamber volume within a certain range.