Theoretical and Experimental Study on the Structure and Vibration Isolation Characteristics of a Hydraulic Engine Mount

Abstract:

Hydraulic engine mounts (HEMs) are important vibration isolation parts in vehicle powertrain mounting systems, and the structural parameters of HEMs are the main factors which determine their vibration isolation characteristics. It is of great significance to discover the influences of the structure parameters on their vibration isolation characteristics in the design and study of HEMs. Firstly, the vibration isolation characteristics of HEMs are analyzed theoretically using a simplified lumped parameter (LP) model. Secondly, the HEMs with different rubber materials, lengths and cross-sectional areas of the inertia tracks are designed and manufactured, and their frequency response characteristics are investigated by experimental and analytical methods. Finally, the influences of these structural parameters on the vibration isolation characteristics of HEMs are educed. The analytical methods and conclusions are instructive for the design and tuning of the vibration isolation characteristics of HEMs.

• Periodical: Key Engineering Materials (Volume 455)
• Pages: 667-671
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.455.667
• Online since: December 2010
• Authors: Qian Li, Bo Zhao, Jian Cai Zhao
• Keywords: Frequency Response Characteristic, Hydraulic Engine Mount (HEM), Lumped Parameter (LP) Model, Structure Parameter, Vibration Isolation Characteristic

References

[1] Y.H. Yu, N.G. Naganathan and R.V. Dukkipati: Mechanism and Machine Theory, Vol. 36 (2001) No. 1, pp.123-142.

[2] A. Geisberger, A. Khajepour and F. Golnaraghi: Journal of Sound and Vibration, Vol. 249 (2002) No. 2, pp.371-397.

DOI: 10.1006/jsvi.2001.3860

[3] J. Christopherson and G.N. Jazar: Journal of Sound and Vibration, Vol. 290 (2006) No. 4, pp.1040-1070.

[4] R. Singh, G. Kim and P.V. Ravindra: Journal of Sound and Vibration, Vol. 158 (1992) No. 3, pp.219-243.

[5] G. Kim, and R. Singh: ASME Journal of Dynamic Systems, Measurement and Control, Vol. 115 (1993) No. 2, pp.482-487.

[6] J.E. Colgate, C.T. Chang, and L.M. Keer: Journal of Sound and Vibration, Vol. 184 (1995) No. 3, pp.503-528.

[7] M.F. Golnaraghi and N.G. Jazar: Journal of Vibration and Control, Vol. 7 (2001) No. 4, pp.495-526.

[8] A. Geisberge: Hydraulic Engine Mount Modeling, Parameter Identification and Experimental Validation (Masters thesis, University of Waterloo, Canada 2000), pp.21-54.

[9] M.F. Golnaraghi and G.N. Jazar: Development and analysis of a simplified nonlinear model of a hydraulic engine mount. Proc. of Eighth Conference of Nonlinear Vibrations, Stability, and Dynamics of Structures ( Blacksburg, July 23-27, 2000), pp.54-55.

[10] Z.H. Lu, W.B. Shangguan, W. Liang and J. Luo: China Mechanical. Engineering, Vol. 15 (2004) No. 2, pp.182-186(In Chinese).

[11] Y.Q. Zhang and W.B. Shangguan: Computer and Structures, Vol. 84 (2006) No. 8-9, pp.572-584.

[12] W.B. Shangguan and Z.H. Lu: Computer and Structures, Vol. 82 (2004) No. 22, pp.1751-1771.