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

Himmetoglu, S.

Originalveröffentlichung: (2017) 7th International Conference on ESAR "Expert Symposium on Accident Research" 2016
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Dokument 1.pdf (522 KB)

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Freie Schlagwörter (Deutsch): Auffahrunfall , Bewertung , Deutschland , Eigenschaft , Fahrzeugsitz , Konferenz , Kopfstütze , Schleudertrauma , Simulation , Steifigkeit , Verhütung
Freie Schlagwörter (Englisch): Conference , Evaluation (assessment) , Germany , Head restraint , Prevention , Properties , Rear end collision , Seat (veh) , Simulation , Stiffness , Whiplash injury
Collection 1: BASt-Beiträge / Tagungen / International Conference on ESAR / 7th International Conference on ESAR
Collection 2: BASt-Beiträge / ITRD Sachgebiete / 91 Fahrzeugkonstruktion
Collection 3: BASt-Beiträge / ITRD Sachgebiete / 84 Personenschäden
Institut: Sonstige
DDC-Sachgruppe: Ingenieurwissenschaften
Sonstige beteiligte Institution: Hacettepe University. Mechanical Engineering Department
Dokumentart: InProceedings (Aufsatz / Paper einer Konferenz etc.)
Sprache: Deutsch
Erstellungsjahr: 2017
Publikationsdatum: 13.10.2017
Kurzfassung auf Englisch: 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.