考虑强液-固耦合效应的发动机液阻悬置动态特性仿真研究

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以某轿车发动机液阻悬置为研究对象，运用INTESIM强液-固有限元方法建立了其动态特性分析的强液-固耦合有限元模型，仿真分析了其静、动刚度特性，并和实验结果进行了对比，验证了仿真研究结果的有效性，说明利用INTESIM强液-固耦合有限元方法可以有效地仿真液阻悬置的动态特性。 A fluid-solid interaction simulation of hydraulic engine mounts （HEM） was developed numerically. The ALE （Arbitrary Lagrangian-Eulerian） finite element method was employed for viscous fluid flow, and linear elastic and hyper-elastic structure materials were used for modeling the steel and rubber respectively. The full interaction between fluid and structure was considered as a strong coupling action. A Laplace equation-based mesh control method was used for moving the internal meshes of the fluid domain. The dynamic characteristics of the HEM were clarified by 3D simulations, and the comparisons between numerical results aud experimental results demonstrate the reliability of the proposed method.