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2010•BERICHTE DER BUNDESANSTALT FUER STRASSENWESEN. UNTERREIHE FAHRZEUGTECHNIKRequires access

The influence of crash pulse shape on seat-occupant response in rear impacts

Selçuk Himmetoğlu

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Abstract

In road traffic accidents, a car seat and its occupant can be subjected to various crash pulses in the case of a rear impact. This study investigates the influence of crash pulse shape on seat-occupant response and evaluates the corresponding risk of whiplash injury. For this purpose, a rigorously validated seat-occupant system model is used to study different car seat designs and crash pulses. Two different car-seat concepts are also presented which can effectively mitigate whiplash injury for a wide range of crash severity. It is shown that for crash pulses of similar severity, the level of whiplash risk depends strongly on the combined effects of seat design and crash pulse shape. (A) Paper to the session Car Accidents of the 4th International Conference on ESAR Expert Symposium on Accident Research, 16th to 18th September 2010 in Hannover. For the covering abstract of the conference, see ITRD D366702.

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What this paper is about

In road traffic accidents, a car seat and its occupant can be subjected to various crash pulses in the case of a rear impact. This study investigates the influence of crash pulse shape on seat-occupant response and evaluates the corresponding risk of whiplash injury. For this purpose, a rigorously validated seat-occupant system model is used to study different car seat designs and crash pulses. Two different car-seat concepts are also presented which can effectively mitigate whiplash injury for a wide range of crash severity. It is shown that for crash pulses of similar severity, the level of whiplash risk depends strongly on the combined effects of seat design and crash pulse shape. (A) Paper to the session Car Accidents of the 4th International Conference on ESAR Expert Symposium on Accident Research, 16th to 18th September 2010 in Hannover. For the covering abstract of the conference, see ITRD D366702.

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Available abstract

In road traffic accidents, a car seat and its occupant can be subjected to various crash pulses in the case of a rear impact. This study investigates the influence of crash pulse shape on seat-occupant response and evaluates the corresponding risk of whiplash injury. For this purpose, a rigorously validated seat-occupant system model is used to study different car seat designs and crash pulses. Two different car-seat concepts are also presented which can effectively mitigate whiplash injury for a wide range of crash severity. It is shown that for crash pulses of similar severity, the level of whiplash risk depends strongly on the combined effects of seat design and crash pulse shape. (A) Paper to the session Car Accidents of the 4th International Conference on ESAR Expert Symposium on Accident Research, 16th to 18th September 2010 in Hannover. For the covering abstract of the conference, see ITRD D366702.

Key concepts: Crash, Whiplash, Seat belt, Crash test, Engineering, Poison control, Whiplash injury, Car seat

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