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Refinement of Powertrain Transmitted Vibration by Optimizing the Geometrical Parameters of Vehicle Body Structure
Technical Paper
2013-01-1715
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The main purpose of this research is to reduce the transmitted engine vibration to the subframe structure via improving the mobility of engine mountings. In fact, the main focus is on the geometry optimization of the subframe part, implementing the design of experiments method, to increase the dynamic stiffness of the part to reduce the vibration transfer function in the mountings location.
In order to perform the optimization process, the front end model of the reference vehicle including the suspension, steering system, engine and deriveline system is generated in FE software. According to the prevalent guidelines, the mobility of engine mountings should be greater than target value which is usually obtained through benchmarking. To do so, some structural parameters that are apt to influence on the mobility function, e.g the section of subframe, thickness of subframe and vehicle body are selected as design variables for doing the design of experiments analysis. On the basis of that, the dominant design variables are introduced to the RSM method to reach the optimum case.
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Citation
Keshavarz, A., Bayani Khaknejad, M., Beigmoradi, S., and Jahani, K., "Refinement of Powertrain Transmitted Vibration by Optimizing the Geometrical Parameters of Vehicle Body Structure," SAE Technical Paper 2013-01-1715, 2013, https://doi.org/10.4271/2013-01-1715.Also In
References
- Crocker , M.J. Handbook of NOISE AND VIBRATION CONTROL John Wiley & Sons, Inc 978-0-471-39599-7 2007
- Montgomery , D.C. Design and Analysis of Expermints John Wiley & Sons, Inc 0-471-31649-0 2001
- Jeong , T. , Singh , R. Analytical Methods of Decoupling the Automotive Engine Torque Roll Axis J. of Sound and Vibration 234 1 85 114 2000
- Magalhães , M. , Nunes , O. , A.S.Filho , J. , and Sampaio , R. CAE-Driven Design for NVH Optimization of an Independent Rear Suspension Subframe SAE Technical Paper 2002-01-3464 2002 10.4271/2002-01-3464
- Courteille , E. , Leotoing , L. , Mortier , F. , Ragneau , E. New analytical method to evaluate the powerplant and chassis coupling in the improvement vehicle NVH European Journal of Mechanics A/Solids 24 929 943 2005
- Park , J. and Singh , R. Effect of Engine Mount Damping on the Torque Roll Axis Decoupling SAE Technical Paper 2007-01-2418 2007 10.4271/2007-01-2418
- Pan , X. , Zonni , D. , Chai , G. , Zhao , Y. et al. Structural Optimization for Engine Mount Bracket SAE Technical Paper 2007-01-2419 2007 10.4271/2007-01-2419
- Park , S. , Park , D. , Yoon , K. , and Lee , M. A Study of Front Subframe System Optimization for Improving Vehicle NVH Performance SAE Technical Paper 2009-01-2097 2009 10.4271/2009-01-2097
- Hafidi , A.E. et al. Vibration reduction on city buses: Determination of optimal position of engine mounts Mechanical Systems and Signal Processing 24 7 2198 2209 2010
- Kalsule , D. , Hudson , D. , Yeola , Y. , and Bohari , J. Structure Borne Noise and Vibration Reduction of a Sports Utility Vehicle by Body-Mount Dynamic Stiffness Optimization SAE Technical Paper 2011-01-1599 2011 10.4271/2011-01-1599
- Bayani Khaknejad , M. and Keshavarz , A. Refining Pickup Cabin NVH Quality via Optimising Exhaust Mountings Using DOE Method SAE Technical Paper 2012-01-2008 2012 10.4271/2012-01-2008