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An evaluation of passive head-restraints with different stiffness and energy dissipation properties for whiplash mitigation

  • This study investigates the protection offered by passive head-restraints with different stiffness and energy dissipation properties. For this purpose, computational multi-body models of a generic car seat and a biofidelic 50thpercentile male human for rear impact are used to study different seat designs and passive head-restraints. The validated seat-occupant model is also used in the design of two different car-seat models which are shown to effectively mitigate whiplash by utilising a crash-energy distribution technique. Five different passive head-restraints with varying stiffness (low-medium-high) and energy dissipation percentages (low-high) are successively attached to four different car-seat models. The simulation results indicate that the protection offered by head restraints is strongly dependent on the seat design. It has also been shown that the stiffness of the passive head-restraint has much more influence on whiplash-risk in comparison to its energy dissipation capacity.

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Author:S. Himmetoglu
Document Type:Conference Proceeding
Date of Publication (online):2017/10/13
Year of first publication:2017
Contributing corporation:Hacettepe University. Mechanical Engineering Department
Release Date:2017/10/13
Tag:Auffahrunfall; Bewertung; Deutschland; Eigenschaft; Fahrzeugsitz; Konferenz; Kopfstütze; Schleudertrauma; Simulation; Steifigkeit; Verhütung
Conference; Evaluation (assessment); Germany; Head restraint; Prevention; Properties; Rear end collision; Seat (veh); Simulation; Stiffness; Whiplash injury
Source:7th International Conference on ESAR "Expert Symposium on Accident Research" 2016
Institutes:Sonstige / Sonstige
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
collections:BASt-Beiträge / ITRD Sachgebiete / 84 Personenschäden
BASt-Beiträge / ITRD Sachgebiete / 91 Fahrzeugkonstruktion
BASt-Beiträge / Tagungen / International Conference on ESAR / 7th International Conference on ESAR
Licence (German):License LogoBASt

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