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Theoretical Approach for Pillar Trim Design to Reduce Head Injury
Technical Paper
2001-01-3056
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
International Body Engineering Conference & Exhibition and Automotive & Transportation Technology Congress
International Body Engineering Conference & Exposition
Language:
English
Abstract
This paper presents an analytic method to estimate the proper space and stiffness of the vehicle's pillar trim to meet FMVSS 201 head injury criteria. A practical guideline curve, which is used in determining the adequate space and stiffness of pillar trim, is derived assuming haversine curve for the head impact pulse. Rib structure of pillar trim, which has a required stiffness, is designed using further simplification that models the BIW and the trim as equivalent springs. The required stiffness of the trim was achieved by adding a rib structure to it, and the shape of the rib structure was obtained using finite element analysis. Finite element analysis and experiment were conducted to validate the design of the trim, and the results were very close to the required stiffness.
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Citation
Kim, H. and Kim, D., "Theoretical Approach for Pillar Trim Design to Reduce Head Injury," SAE Technical Paper 2001-01-3056, 2001, https://doi.org/10.4271/2001-01-3056.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
- Federal Motor Vehicle Safety Standard (49 CFR PART 571) MVSS 201-Occupant Protection in Interior Impact
- Lim G.G. Chou C.C. Patel R.N. Shahab S.A. Patel P.J. “Estimating the Minimum Space to Meet Federal Interior Head Impact Requirement” SAE 950333 1995
- Naick P.A. Carnago K.M. “Theoretical Relationship of HICd to Crush Space for FMVSS-201 HEAD Impact Test, and the Effective Use of FEA in Predicting HIC for Design, Verfication and Optimization of Countermeasures” SAE 982349 1998
- Chou C.C. Howell R.J. Chang B.Y. “A Review Evaluation of Various HIC Algorithms” SAE 880656 1988