【摘要】 采用双向液-固耦合有限元方法,分析液压衬套静态、动态力学特性以及内流体特性分布规律。有限元计算结果与试验结果较吻合,验证了该方法有效,且有限元计算方法直观体现了液体的运动分布情况。众多集总参数中,液压衬套动特性对等效活塞面积的变化最为敏感,随着等效活塞面积的增大,液压衬套动刚度、滞后角均有较大幅度的增长。更多还原

【Abstract】 In this study,the static and dynamic mechanical characteristics of hydro-bushing were studied,and the fluid characteristic in hydro-bushing was analyzed using two-way fluid-structure interaction nonlinear finite element analysis(FEA).It was found that the analysis result of FEA was in good accordance with the experimental test result,and this method directly reflected the movement and distribution of the liquid.The change of the dynamic characteristic of hydro-bushing was most sensitive to the equivalent area of piston among all the lumped parameters.With the increase of the equivalent area of piston,the dynamic stiffness and lag angle were greatly increased.更多还原