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Finite Element Analysis of Engine Mount for Multi Utility Passenger Vehicle
Technical Paper
2001-26-0046
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2001
Language:
English
Abstract
Power plant mounting is one of the fundamental design characteristics of a motor vehicle. A vehicle's power-plant, in particular the way it is mounted to the vehicle body plays a major role in determining the vehicle's vibration characteristics. A well designed mounting system isolates the engine inputs. In this regard engine mounts play a key role; as the vibration transfer path is from engine to vehicle body through engine mounts and chassis.
A finite element vibration analysis of the engine mount is performed for the multi-utility passenger vehicle fitted with direct injection diesel engine to simulate and study their behaviour under engine vibration in vehicle. Apart from this their effectiveness to isolate the engine vibration to the chassis from normal idle speed to high idle is also determined.
The analysis is carried out in two parts, viz.:
- A)Linear static analysis and Non- Linear Hyper-elastic analysis
- B)Vibration analysis for
- Analysis of mount as fitted in engine for natural frequency
- Response study of engine mount
Part A of the analysis is done to compare the static deflection of the engine mount with measured values in the lab with engine and gearbox load supported by the mount in vehicle. The non-linear hyperelastic analysis is carried out to take into account the non-linear effects of the elastomer.
The results of both the FE analysis are in close agreement with the actual test results.
Part B of the analysis revealed the behaviour of the mount for the whole operating range of the engine in vehicle. The vibration transmissibility and model response of the mount is determined. The results show that engine mount is effective in isolating the engine vibration and operates in the isolation region of the transmissibility curve.
Authors
Citation
Dhoble, A. and Sharma, R., "Finite Element Analysis of Engine Mount for Multi Utility Passenger Vehicle," SAE Technical Paper 2001-26-0046, 2001, https://doi.org/10.4271/2001-26-0046.Also In
References
- Racca, R. Stanley. “Effective Reduction Of Noise And Vibration Of Internal Combustion Engines In Marine Installations” SAE Paper 941685 1994
- Xue-Feng. J. “A Study Of Inclined Engine Mounting System Design Parameters” SAE Paper 912492 1991
- Lee, N. K. et al. “Design Of Engine Mount Using Finite Element Method And Optimisation Technique” SAE Paper 980379 1998
- Subhedar, J. W. Johnson, S. R. “Computer Optimization of Engine Mounting System” SAE 790974 1979
- Bretl, J. “Optimization Of Engine Mounting Systems To Minimize Vehicle Vibration” SAE Paper 931322 1993
- Gent, A. N. “Engineering with Rubber” Auspices of the Rubber Division of the American Chemical Society, Hanser Publication 1992