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A Study of Front Subframe System Optimization for Improving Vehicle NVH Performance
Technical Paper
2009-01-2097
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The purpose of this article is to investigate the links between NVH performances of a car such as booming, road noise and dynamic characteristics of its front subframe system. The target of dynamic property of the subframe members was set through a contribution analysis. The Booming noise was refined by improving the structural dynamic stiffness of relevant subframe members and optimizing the dynamic stiffness of subframe mount bushes considering the frequency property of the engine exciting force. In the light of NVH, merits and demerits of a solid mounted subframe for various powertrain types were examined, and several countermeasures such as structural reinforcement, dynamic dampers and dynamic characteristics of A and G bushes were applied and suggested.
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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, https://doi.org/10.4271/2009-01-2097.Also In
References
- Park Kyung-Hwan “A study on vibration characteristics and sizing optimization of a subframe” JSAE Technical Paper No. 20035436
- Arakawa Michio “Analysis of forces from the subframe into sidemembers for road noise reduction” JSAE Technical Paper No. 9534964
- Daly Mark Allen “Influence of Mount Stiffness on Body/Subframe Acoustic Sensitivities” SAE Technical Paper No. 2003-01-1714
- Plunt Juha “Examples of Using Transfer Path Analysis(TPA) together with CAE-Models to Diagnose and Find Solutions for NVH Problems Late in the Vehicle Development Process” SAE Technical Paper No. 2005-01-2508
- Beranek Leo L. “Noise and Vibration Control” The institute of Noise Control Engineering
- Tsujiuchi Nobutaka “A Stiffness Optimization Procedure for Automobile Rubber Mounts” SAE Technical Paper No. 2001-01-1445