MODELING AND EXPERIMENTAL STUDY OF A PASSIVE HYDRAULIC ENGINE MOUNT WITH INERTIA AND DIRECT-DECOUPLER |
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Authors: | ZHANG Yunxia ZHANG Jianwu SHANGGUAN Wenbin FENG Qishan |
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Affiliation: | [1]School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China [2]College of Mechanical and Electronic Engineering, Shanghai Normal University, Shanghai 200234, China [3]School of Vehicle Engineering,South China University of Technology, Guangzhou 510641, China |
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Abstract: | To investigate the dynamic characteristics and damping theory of the passive hydraulic engine mount (PHEM), numerical prediction is performed through lumped parameter model. System parameters, including volume compliance of the decoupler chamber, effective piston area, fluid inertia and resistance of inertia track and direct-decoupler, are identified by means of experiments and finite element method (FEM). Dynamic behaviors are tested with elastomer test system for purpose of validating PHEM. With incorporation of inertia track and direct-decoupler, PHEM behaves effective and efficient vibration isolation in range of both low and high frequencies. The comparison of the numerical results with the experimental observations shows that the present PHEM achieves fairly good performance for the engine vibration isolation. |
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Keywords: | Passive hydraulic engine mount Lumped parameter model Parameter identification Dynamic response |
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