Automotive Vehicle Engine Mounting Systems: A Survey
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Published:1999-06-09
Issue:2
Volume:123
Page:186-194
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ISSN:0022-0434
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Container-title:Journal of Dynamic Systems, Measurement, and Control
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language:en
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Short-container-title:
Author:
Yu Yunhe1, Peelamedu Saravanan M.1, Naganathan Nagi G.1, Dukkipati Rao V.2
Affiliation:
1. Mechanical, Industrial and Manufacturing Engineering Department, The University of Toledo, Toledo, OH 43606 2. Department of Mechanical Engineering, School of Engineering, Fairfield University, Fairfield, CT 06430
Abstract
This study divided into three portions to provide performance requirements; overview and development of various engine mounts; and the optimization of engine mount systems. The first part provides an insight about the ideal engine mount system that should isolate vibration caused by engine disturbance force in various speed range and prevent engine bounce from shock excitation. This implies that the dynamic stiffness and damping of the engine mount should be frequency and amplitude dependent. Therefore, the development of engine mounting systems has mostly concentrated on improvement of frequency and amplitude dependent properties. The second part starts discussion on the conventional elastomeric mounts that offer a trade-off between static deflection and vibration isolation. The next level, passive hydraulic mounts can provide a better performance than elastomeric mounts especially in the low frequency range. Subsequently, semi-active and active techniques are used to improve performance of hydraulic mounts by making them more tunable. The active engine mounting system can be very stiff at low frequency and be tuned to be very soft at the higher frequency range to isolate the vibration. The final part is about the optimization of engine mounting systems. An overview of the current work on this optimization shows some limitations. Further study is needed to consider the nonlinearities and variations in properties of different types of mounting systems.
Publisher
ASME International
Subject
Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering
Reference55 articles.
1. Johnson, S. R. and Subhedar, J. W., 1979, “Computer Optimization of Engine mounting Systems,” SAE Paper #790974. 2. Geck, P. E., and Patton, R. D., 1984, “Front Wheel Drive Engine Mount Optimization,” SAE Paper #840736. 3. Swanson, D. A., “Active Engine Mounts for Vehicles,” 1993, SAE Paper #932432. 4. Miller, L. R., and Ahmadian, M., 1992, “Active Mounts- A Discussion of Future Technological Trends,” Inter-noise Conference, Toronto, Canada, July 20–22, pp. 1–6. 5. Swanson, D. A. and Miller, L. R., 1993, “Design and Effectiveness Evaluation of and Active Vibration Isolation System for a Commercial Jet Aircraft,” AIAA/AHS/ASEE Aerospace Design Conference, Irvine, February 16–19, pp. 1–9.
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