Comparison of car seats in low speed rear-end impacts using the BioRID dummy and the new neck injury criterion (NIC)

摘要

Long-term whiplash associated disorders (WAD) 1-3 sustained in low velocity rear-end impacts is the most common disability in Sweden. Therefore. to determine neck injury mechanisms and develop methods to measure neck-injury related injury in Sweden. Therefore, to determine neck injury mechanisms and develop methods to measure neck-injury related parameters are of importance for current crash-safety research. A new neck injury criterion (NIC) has previously been proposed and evaluated by means of dummy, human and mathematical rear-impact simulations. So far, the criterion appears to be sensitive to the major car and collision related risk factors for injuries with long-term consequences. To further evaluate the applicability of NIC, four seats were tested according to a recently proposed sled-test procedure. 'Good' as well as 'bad' seats were chosen on the basis of a recently presented disability risk ranking list. The dummy used in the current tests was the Biofidelic Rear Impact Dummy (BioRID). The results of this study showed that NIC_(max) values were generally related to the real-world risk of long-term WAD 1-3. Furthermore, these results suggested that NIC_(max) calculated from sled tests using the BioRID dummy can be used for evaluating the neck injury risk of different car seats.