Development of a mechanical neck for a six-year-old pedestrian dummy

Renaud, François; Tapia, Francisco; Fredriksson, Rikard; Yang, Jikuang

Affiliations

¹221 bis, Bd Jean Jaures, 925 13 Boulogne Cedex, France

²Autoliv Research, Wallentinsvägen 22, 447 83 Vårgårda, Sweden

³Vehicle Safety Division, Department of Applied Mechanics, Chalmers University of Technology, 412 96 Gothenburg, Sweden

Abstract

This study aimed at developing an omni-directional mechanical neck to improve a modified six-year-old Hybrid III dummy intended to represent a child pedestrian. A prototype neck was designed and manufactured based on available biomechanical data resulting from paediatric studies and data scaled down from adult properties. The prototype and the standard necks were tested to compare the biomechanical responses in the same static/dynamic conditions. Full scale tests and mathematical simulations were carried out to evaluate the performance of the prototype neck. The developed dummy neck is an improved tool to better assess protective devices designed to minimise child head injuries in car-to-pedestrian accidents.

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