文档介绍：Computers and Structures 82 (2004) 1751–1771
pstruc
Experimental study and simulation of a hydraulic
engine mount with fully coupled fluid–structure
interaction finite element analysis model
Wen-Bin Shangguan a,*, Zhen-Hua Lu b
a Department of Automotive Engineering, South China University of Technology, Guangzhou 510641, . China
b Department of Automotive Engineering and State Key Laboratory of Automotive Safety and Energy, Tsinghua University,
Beijing 100084, . China
Received 17 February 2004; accepted 12 May 2004
Abstract
Non-linear properties of a generic hydraulic engine mount (HEM) are identified and characterized by experiment
and simulation approaches. The experimental methods for obtaining static and dynamic performances of the HEM
are presented. The characteristics of two configurations of the take-apart HEMs (one is with an inertia track and a free
decoupler and the other one is only with an inertia track) and their rubber springs are studied. The relations between
static stiffness of an HEM and its rubber springs in three orthogonal directions are investigated. The influences of pre-
load, excitation amplitudes and frequencies on the dynamic stiffness of an HEM are verified. The effects of the free de-
coupler on dynamic characteristics of the HEM are studied parisons of the test results of the two HEMs. The
dynamic fluid pressure and the temperature in the upper chamber of an HEM are measured under different excitation
conditions. A fully coupled fluid–structure interaction (FSI) and finite element analysis (FEA) model for simulation of
HEMs is developed in this paper, which can be used to simulate the static and dynamic performances of the HEMs with
only stress versus strain relations of the rubber materials, the fluid physical parameters and the HEMs sizes. The sim-
ulated results of one HEM with the proposed model are given, and the results match well with the measured data, or in
coincidence with the working mechanisms of HE