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Effects of Headform Friction on Ejection Mitigation Testing
Technical Paper
2014-01-0533
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Ejection Mitigation testing is now required by the U.S. government through FMVSS 226 [1]. FMVSS 226 contains the requirement of using a linear guided headform in a horizontal impact test into the inflated curtain, or other ejection mitigation countermeasure that deploys in the event of a rollover. The specification provides dimensions for a featureless headform [2] but there are limited specifications for the headform skin surface condition. In the “Response to Petitions” of the 2011 Final Rule for FMVSS 226 [3], the NHTSA declined the option to include a headform cleaning procedure. This research presents a case study to quantify the effect of changes in the friction between the headform and curtain on the measured excursion. The study presented here shows that a change in friction between the headform and curtain can affect excursion values by up to 135 millimeters (mm).
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Citation
Heading, M., Stein, D., and Dix, J., "Effects of Headform Friction on Ejection Mitigation Testing," SAE Technical Paper 2014-01-0533, 2014, https://doi.org/10.4271/2014-01-0533.Also In
References
- Federal Motor Vehicle Safety Standard No. 226 Ejection Mitigation 49 CFR Part 571 76 38 15 02 2011
- Humanetics Parts List and Drawings; Ejection Mitigation Headform Drawing Package Humanetics P/N ATD-7304 December 2010
- Federal Motor Vehicle Safety Standards; Ejection Mitigation Final Rule, 49 CFR Part 571 78 174 09 09 2013
- Notice of Proposed Rulemaking, Federal Motor Vehicle Safety Standard No. 226 Ejection Mitigation National Highway Traffic Safety Administration Docket No. NHTSA-2009-0183 December 2 2009
- Factors Related to the Likelihood of a Passenger Vehicle Occupant Being Ejected in a Fatal Crash National Center for Statistics and Analysis, National Highway Traffic Safety Administration DOT-HS-811-209 December 2009
- Motor Vehicle Traffic Crash Fatality Counts and Estimates of People Injured for 2007 National Center for Statistics and Analysis. National Highway Traffic Safety Administration DOT-HS-811-034 February 2009
- U.S. Department of Transportation, National Highway Traffic Safety Administration Laboratory Test Procedure for FMVSS No. 226, Ejection Mitigation TP-226-00 Mar. 2011
- Evans , N. and Leigh , M. FMVSS 226 Ejection Mitigation: A Review SAE Technical Paper 2013-01-0469 2013 10.4271/2013-01-0469
- Mueller , J. , Stein , D. , and Dix , J. Evaluation of Variation in the Excursion Measured in the FMVSS 226 Ejection Mitigation Test Resulting from Test Vehicle Setup SAE Technical Paper 2012-01-0097 2012 10.4271/2012-01-0097
- Dix , J. , Hammoud , S. , Cardinali , A. , Mitchell , A. et al. Influence of Complying with FMVSS 226 (Ejection Mitigation) on Side Airbag Occupant Out of Position Injury Assessment SAE Int. J. Passeng. Cars - Mech. Syst. 5 1 369 380 2012 10.4271/2012-01-0466