Working process simulation of hydraulically damped rubber mount based on finite element analysis of fluid-structure interaction

摘要

This paper investigates working process simulation of Hydraulically Damped Rubber Mount (HDM) based on Finite Element (FE) analysis of Fluid-Structure Interaction (FSI). The direct computing method of coupled FSI formulation in Arbitrary-Lagrangian-Eulerian coordinate and mixed displacement-pressure FE formulation for incompressible media of rubber is adopted. Constitutive law of rubber material is determined by FE analysis of incompressible material. Comparison of predicted and experimental static elasticity verifies the effectiveness of the presented modelling approach of HDM. Fluid pressure/velocity fields and deformation/stress fields of rubber components under typical working condition that clarifies the working process of HDM are analysed. This research can help us to evaluate carrying capacity, identify chamber volumetric characteristics, and carry out stress distribution for structural design of HDM.