Dynamic performances of different seat designs for low to medium velocity rear impact

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Linder, Astrid^1,2; Olsson, Ted¹; Truedsson, Niklas¹; Morris, Andrew¹; Fildes, Brian¹; Sparke, Laurie³

Dynamic performances of different seat designs for low to medium velocity rear impact

45th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM)

Affiliations

¹Accident Research Centre, Monash University, Melbourne, Australia

²Chalmers University of Technology, Göteborg, Sweden

³Holden Ltd, Melbourne, Australia
Abstract

There is good evidence that seat design and impact severities in terms of delta-V and acceleration plays a role in AIS 1 neck injury outcomes in the event of a rear impact. This study evaluates a number of current production seats to assess the AIS 1 neck injury protection potential at different impact severities. Five different seat designs were exposed to four different impact severities in a sled simulating a rear impact. The same delta-V produced with different peak accelerations generated very different dummy responses. Head restraint position influenced the angular and horizontal displacement of the head relative to torso and the time of head to head restraint contact. The lowest motion of the head relative to the torso was found in the two anti-whiplash seats tested. The results of the study can be used for the design of future vehicle seats and anti-whiplash systems.

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Cited By (7)

Year	Entry
2002	Croft AC, Haneline MT, Freeman MD. Low speed frontal crashes and low speed rear crashes: is there a differential risk for injury? In: 46th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). September 30–October 2, 2002; Tempe, AZ.
2003	Linder A, Avery M, Krafft M, Kullgren A. Change of velocity and pulse characteristics in rear impacts: real world and vehicle tests data. In: Proceedings of the 18th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 19-22, 2003; Nagoya, Japan.
2003	Zuby DS, Farmer CM, Avery M. The influence of crash pulse shape on BioRID response. In: Proceedings of the 2003 International IRCOBI Conference on the Biomechanics of Impact. September 25, 2003; Lisbon, Portugal.327-341.
2004	Linder A, Avery M, Kullgren A, Krafft M. Real-world rear impacts reconstructed in sled tests. In: Proceedings of the 2004 International IRCOBI Conference on the Biomechanics of Impact. September 22-24, 2004; Graz, Austria.233-244.
2016	Broos J, Meijer R. Simulation method for whiplash injury prediction using an active human model. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.390-408.
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