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Experimental Method to Derive Optimum Engine Mount System for Idle Shake
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English
Abstract
In front wheel drive cars (FWD) with transversely mounted engines, engine mounting is closely related to idle shake. For this reason, in the early design stage, consideration of the natural frequency of the engine mount system and idle shake simulation has been made primarily using the finite element model. However, these approaches do not have good accuracy. In the prototype stage, only mount rates can be controlled because modifications of mount locations are nearly impossible.
This paper describes a method to find the optimum mount system. In this method, optimum locations and rates of mounts are automatically found through consideration of engine motion and body dynamic characteristics. Also, applying this to a four-cycle diesel engine with four mounts, the design method of mounts are discussed.
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Authors
Citation
Hata, H. and Tanaka, H., "Experimental Method to Derive Optimum Engine Mount System for Idle Shake," SAE Technical Paper 870961, 1987, https://doi.org/10.4271/870961.Also In
References
- Radcliffe C.J. Picklemann M.N. Spiekermann C.E. “Simulation of Engine Idle Shake Vibration” SAE Paper 830259 1983
- Johnson S.R. Subhedar J.W. “Computer Optimization of Engine Mounting Systems” SAE Paper 790974 1979
- Geek P.E. Patton R.D. “Front Wheel Drive Engine Mount Optimization” SAE Paper 840736 1984
- Ford D.M. “An analysis and Application of a Decoupled Engine Mount System for Idle Isolation” SAE Paper 850976 1985
- Timpner F.F. “Design Considerations in Engine Mounting” SAE Paper 966B 1965
- Chikamori S. Magoshi R. Hata H. “Experimental Analysis of Booming Noise in Passenger Car Cabins by Vector Synthesis Method” MHI Technical Review 18 3 1981
- Crowley J. Brown D.L. Rocklin G.T. “Use of Rigid Body Calculations in Test” Proceedings of the 4th IMAC 1986
- Chiang S.L. “Using Experimental Modal Modeling Techniques to Investigate Steering Column Vibration and Idle Shake of a Passenger Car” SAE Paper 850996 1985