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International Journal of Automotive Technology 2007;8(2): 233-241. |
MODELING AND PARAMETER IDENTIFICATION FOR A PASSIVE HYDRAULIC MOUNT |
Y. X. ZHANG1, J. W. ZHANG1, W.-B. SHANGGUAN2, Q. SH. FENG3 |
1Shanghai Jiao Tong University 2South China University of Technology 3Shanghai General Motors Corporation Limited. |
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ABSTRACT |
A lumped parameter model is proposed for the analysis of dynamic behaviour of a Passive Hydraulic Engine Mount (PHEM), incorporating inertia track and throttle, which is characterized by effective and efficient vibration isolation behaviour in the range of both low and high frequencies. Most of the model parameters, including volume compliance of the throttle chamber, effective piston area, fluid inertia and resistance of inertia track and throttle are identified by an experimental approach. Numerical predictions are obtained through a finite element method for responses of dynamic stiffness of the rubber spring. The experiments are made for the purpose of PHEM validation. Comparison of numerical results with experimental observations has shown that the present PHEM achieves good performance for vibration isolation. |
Key Words:
Passive hydraulic engine mount, Lumped parameter model, Parameter identification, Dynamic response |
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