【摘要】 应用 ABAQU S非线性有限元分析软件 ,对空气弹簧进行有限元建模 ,计算其静态刚度特性。理论计算结果与试验结果比较吻合。最后对影响空气弹簧弹性特性的主要参数进行了讨论。更多还原

【Abstract】 Nonlinear stiffness characteristics of an air spring were analyzed(FEA) by a nonlinear finite element analysis package. The hyperelastic material model, Mooney Rivlin, was applied to simulate the rubber material and the rebar material was adopted to build the cord fabric layers. The air in the cavity of air spring was represented by the hydrostatic fluid elements of ABAQUS and 3D shell elements were used to build the rigid model. The contacts between deformable body and contacted bodies were also analyzed. The spring characteristic of the air spring was calculated under certain constraints and loads by the FEA model. The results both from the simulation and the tests are compared and an excellent agreement is achieved, which indicates that the present method is sufficiently reliable for predicting the nonlinear stiffness characteristics of an air spring.更多还原