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Full Vehicle NVH CAE Methodology Development to Address Tailgate Rattling on a Future Tata SUV
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 09, 2019 by SAE International in United States
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In recent years, car manufacturers have been working intensively on new ways to improve the quality of interior trims. Elimination of squeak and rattle has become one of the main concerns for car manufacturers lately, given the significance of these incidences in customers' perception of overall quality. Traditionally, rattle problems are found and fixed with physical tests at the late design stage, mainly due to lack of up-front CAE simulation prediction methodology and tools availability. This article presents a finite element based methodology for the improvement of rattle performance of a vehicle tailgate. In this study, appropriate finite element (FE) modeling technique was introduced to accurately predict occurrence of tailgate rattle. Simulation process using commercial software “Nastran” employing modal and forced frequency response analyses was illustrated. Design modifications were incorporated for performance improvement of rattling on present and future SUVs. The simulation methodology and results were validated with experiments on an existing SUV model, with BSR inputs at left rear tire and acceleration responses measured on body and tailgate. Usefulness of this study to predict tailgate rattling in future SUVs was underlined with an example.
CitationChittilla, K., Lakshe, S., Raut, M., Billade, D. et al., "Full Vehicle NVH CAE Methodology Development to Address Tailgate Rattling on a Future Tata SUV," SAE Technical Paper 2019-26-0213, 2019, https://doi.org/10.4271/2019-26-0213.
Data Sets - Support Documents
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- Kavarana, F. and Rediers, B., “Squeak and Rattle - State of the Art and Beyond,” SAE Technical Paper 1999-01-1728, 1999, doi:10.4271/1999-01-1728.
- Nolan, S.A., Yao, Y.X., Tran, V., Weber, W.F. et al., “Instrument Panel Squeak and Rattle Testing and Requirements,” IMAC-XIV, SEM, 1996, 490-494.
- Kuo, E.Y. and Mehta, P.R., “The Effect of Seal Stiffness on Door Chucking and Squeak and Rattle Performance,” SAE Technical Paper 2004-01-1562, 2004, doi:10.4271/2004-01-1562.
- Gosavi, S.S., “Automotive Buzz, Squeak and Rattle (BSR) Detection and Prevention,” SAE Technical Paper 2005-26-056, 2004, doi:10.4271/2005-26-056.