机械工程学报

ZHANG Yunxia
School of Mechanical Engineering,
Shanghai Jiaotong University,
Shanghai 200240, China

College of Mechanical and Electronic
Engineering,
Shanghai Normal University,
Shanghai 200234, China

ZHANG Jianwu
School of Mechanical Engineering,
Shanghai Jiaotong University,
Shanghai 200240, China

SHANGGUAN Wenbin
School of Vehicle Engineering,
South China University of Technology,
Guangzhou 510641, China

FENG Qishan
School of Mechanical Engineering,
Shanghai Jiaotong University,
Shanghai 200240, China

MODELING AND EXPERIMENTAL STUDY OF A PASSIVE HYDRAULIC ENGINE MOUNT WITH INERTIA AND DIRECT-DECOUPLER*

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.

Key words: Passive hydraulic engine mount Lumped parameter model Parameter identification Dynamic response

This project is supported by National Hi-tech Research and Development Program of China (863 Program, No. 2001AA505000-11). Received April 30, 2007; received in revised form November 16, 2007; accepted April 9, 2008

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Biographical notes

ZHANG Yunxia is a teacher in College of Mechanical and Electronic Engineering, Shanghai Normal University, China. She received her PhD degree in School of Mechanical Engineering, Shanghai Jiaotong University, China. Her research interests include hydraulic mount of engine, vibration and noise of vehicle, etc.
Tel: +86-21-34206064; E-mail: yunxia_8@hotmail. com

References

[1] SINGH R, KIM G. Linear analysis of automotive hydro-mechanical mounts with emphasis on decoupler characteristics[J]. Journal of Sound and Vibration, 1992, 158(2): 219–243.
[2] FLOWER W C. Understanding hydraulic mounts for improved vehicle noise[G]. SAE Paper 850975, 1985.
[3] NADER V. Double-notch single-pumper fluid mounts[J]. Journal of Sound and Vibration, 2005, 285(3): 697–710.
[4] KIM G, SINGH R. A study of passive and adaptive hydraulic engine mount systems with emphasis on non-linear characteristics[J]. Journal of Sound and Vibration, 1995, 179(3): 427–453.
[5] GEISBERGER A, KHAJEPOUR A, GOLNARAGHI F. Non-linear modeling of PHEMs: theory and experiment[J]. Journal of Sound and Vibration, 2002, 249(2): 371–397.
[6] SHANGGUAN Wenbin, LU Zhenhua. Modeling of a hydraulic engine mount with fluid-structure interaction finite element analysis[J]. Journal of Sound and Vibration, 2004, 275(1): 93–221.
[7] CHRISTOPHERSON J, NAKHAIE JAZAR G. Dynamic behavior comparison of passive hydraulic engine mounts. Part 1: mathematical analysis[J]. Journal of Sound and Vibration, 2006, 290(3): 1 040–1 070.
[8] GEISBERGER A. Hydraulic engine mount modeling, parameter identification and experimental validation[D]. Waterloo: University of Waterloo, 2000.
[9] SHANGGUAN Wenbin. A research on simulation techniques for fluid-structure interaction dynamic characteristics of hydraulically damped rubber mount[D]. Beijing: Tsinghua University, 2003. (in Chinese)
[10] SHANGGUAN Wenbin, LU Zhenhua. Experimental study and simulation of a hydraulic engine mount with fully coupled fluid structure interaction finite element analysis model[J]. Computers and Structures, 2004, 22(2): 1 751–1 771.
[11] ZHANG Y X, ZHANG J W, SHANGGUAN W B. The dynamic response of a novel passive hydraulic engine mount[J]. Journal of Shanghai Jiaotong University, 2006, 40(6): 942–946. (in Chinese)