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Potential Effects of Friction on Injury Measures Computed in Aircraft Seat HIC Analysis Testing
Technical Paper
2017-01-2054
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Aircraft seating systems are evaluated utilizing a variety of impact conditions and select injury measures. Injury measures like the Head Injury Criterion (HIC) are evaluated under standardized conditions using anthropomorphic test devices such as those outlined in 14 CFR part 25. An example test involves decelerating one or more rows of seats and allowing a lap-belted ATD to engage components in front of it, which typically include the seatback and its integrated features. Examples of head contact surfaces include video monitors, various plastic and composite fascia, and a wide range of seat back materials. The HIC, and other injury measures such as Nij, can be calculated during such impacts. It has been shown in other safety applications that the friction between a headform and contact surface can affect the test results. A series of finite element simulations of a frontal deceleration pulse with a generalized aircraft seat was performed to determine the variation in HIC and Nij observed based on various friction characteristics between the ATD and select seat components. The results indicate that the level of friction on the test device headform can influence the ability to pass the HIC analysis test. Of particular interest is the change in response due to the use of friction characteristics representative of human skin compared with ATD skin.
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Citation
Friedman, K., Mattos, G., Bui, K., Hutchinson, J. et al., "Potential Effects of Friction on Injury Measures Computed in Aircraft Seat HIC Analysis Testing," SAE Technical Paper 2017-01-2054, 2017, https://doi.org/10.4271/2017-01-2054.Data Sets - Support Documents
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References
- Mihora , D. , Friedman , K. , and Hutchinson , J. Effect of Friction Between Head and Airbag Fabric on Ejection Mitigation Performance of Side Curtain Airbag Systems SAE Technical Paper 2011-01-0004 2011 10.4271/2011-01-0004
- Eppinger , R et al Development of Improved Injury Criteria for the Assessment of Advanced Automotive Restraint Systems - II NHTSA Washington, DC 1999
- LS-DYNA v971 Livermore Software Technology Corporation Livermore, California
- Federal Aviation Administration Dynamic Evaluation of Seat Restraint Systems and Occupant Protection on Transport Airplanes Advisory Circular 25.562-1B January 2006
- Livermore Software Technology Corporation Hybrid III Detailed ATD number 151214 and BETA
- SAE International Surface Vehicle Recommended Practice Instrumentation for Impact Tests - Part 1 - Electronic Instrumentation SAE Standard J211 Mar. 2014
- NHTSA FMVSS 208, Occupant Crash Protection Section 571.208, 36 FR 22902 December 2 1971
- Heading , M. , Stein , D. , and Dix , J. Effects of Headform Friction on Ejection Mitigation Testing SAE Technical Paper 2014-01-0533 2014 10.4271/2014-01-0533
- Sharma , M. , Pandey , R. , and Gupta , A. Instrument-Panel Head Form Impact Test: Effects of Different Impactors & Test Methodologies SAE Technical Paper 2007-01-0706 2007 10.4271/2007-01-0706
- Kang , S. , Barnes , E. , and Feustel , J. Driver Airbag Linear Impactor Dynamic Testing Method and Data Analysis SAE Technical Paper 2006-01-1436 2006 10.4271/2006-01-1436
- Mihora , D. , Friedman , K. , and Hutchinson , J. Effect of Friction Between Head and Airbag Fabric on Ejection Mitigation Performance of Side Curtain Airbag Systems SAE Technical Paper 2011-01-0004 2011 10.4271/2011-01-0004
- SAE International Surface Vehicle Recommended Practice Linear Impactor Calibration Procedure SAE Standard J3095 Jun. 2016
- SAE International Surface Vehicle Recommended Practice Linear Impact Procedure for Occupant Ejection Protection SAE Standard J2937 Apr. 2016