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Dynamic Sled Testing of Child Restraints
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English
Abstract
Child restraint performance in frontal and lateral crash simulations is presented and discussed based upon tests conducted on the Calspan HYGE acceleration sled. Differing acceleration pulses for frontal tests were used to evaluate the pulse shape effect upon the child restraint systems. Two types of three year old size anthropometric test devices (ATDs) were used and restraint systems were intentionally improperly installed in an effort to ascertain the potential hazard to the child occupant from improper installation. Data obtained include head excursion, head and chest triaxial accelerations, Head Severity Index (HSI) and Chest Severity Index (CSI) values for the ATDs. High speed movie coverage produced dummy kinematic results.
From the results of this study comparisons are made between the effects of different pulse shapes, the effects of different ATDs on restraint performance and the dynamic performance of the ATD/restraint complex under both proper and improper system installation.
FMVSS 213 and Canadian P.C. 1974-1013 dynamic performance criteria are discussed in light of the findings of this study.
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Citation
Kelleher, B. and Walsh, M., "Dynamic Sled Testing of Child Restraints," SAE Technical Paper 790073, 1979, https://doi.org/10.4271/790073.Also In
References
- Walsh M.J. “Sled Tests of Child Restraints.” Calspan Report No. ZM-6013-V-1 April 1977
- Walsh M.J. “Sled Tests of an Automobile Child Restraint.” Calspan Report No. 6166-V-1 September 1977
- Walsh M.J. Kelleher B.J. “Dynamic Sled Tests of Child Restraints.” Calspan Report No. 6312-V-1 February 1978
- Kelleher B.J. Walsh M.J. “Dynamic Sled Tests of a Peterson Child Restraint.” Calspan Report No. 6300-V-1 May 1978
- Walsh M.J. Kelleher B.J. “Dynamic Sled Test of Bobby Mac Child Restraints.” December 1978
- “Children's Car Seat and Harnesses Regulations.”
- Stalnaker R.L. et al. “Performance Evaluation of Child Dummies and Baboons in Child Restraint Systems in a Systemized Crash Environment,” Paper 751153 Proceedings of the Nineteenth Stapp Car Crash Conference San Diego California 1975
- Schreck R.M. Patrick L.M. “Frontal Crash Evaluation Tests of a Five-Point Harness Child Restraint.” Paper 751152 Proceedings of the Nineteenth Stapp Car Crash Conference San Diego, California 1975
- “Child Restraint Systems Belt Assemblies and Anchorages.” Department of Transportation, NHTSA Docket No. 74-9, Notice 04
- Haley, J.L. Jr. “Effect of Rapid Loading Rates on the Stress-Strain Properties of Restraint Webbing.” Paper 660798 Proceedings of the Tenth Stapp Car Crash Conference
- Melvin J.W. Stalnaker R.L. Mohan D. “Protection of Child Occupants in Automobile Crashes.” Paper 780904 Proceedings of the Twenty-Second Stapp Car Crash Conference Ann Arbor, Michigan 1978
- Walsh M.J. Romeo D.J. “Results of Cadaver and Anthropomorphic Dummy Tests in Identical Crash Situations.” Paper 760803 Proceedings of the Twentieth Stapp Car Crash Conference Dearborn, Michigan 1976
- Walsh M.J. “Comparative Evaluation of the Effectiveness of Occupant Restraint Systems in Full Scale Crashes with Dummies and Cadavera,” Final Report No. ZM-5763-V-10 March 1978