The rear seat occupant has been the subject of an increasing number of research efforts in recent years. However, the majority of the research has focused on frontal impact, while there are also a number of studies concerned with low to moderate delta-V rear impact. Very limited work exists regarding the fate of the rear seat occupant involved in high-severity rear impact, especially when utilizing the BioRID anthropomorphic test device (ATD). Furthermore, it is evident that the out of position rear occupant, as defined by leaning forward prior to rear impact, is also of relevance to this line of research. The objective of this study is to explore and compare the response of BioRID and 50 th percentile Hybrid III in conjunction with the effects of head restraint geometry and the occupant seating configuration (normal seating versus forward leaning) in high-severity rear impact tests. Using a deceleration sled, BioRID and 50 th percentile Hybrid III were placed in the rear seat and subjected to a series of 22-mph delta-V rear impact tests. The pulse shape was representative of FMVSS 301 tests involving sedans. Six sled tests were conducted using two different head restraints and two ATD seating configurations. The ATD response data were analyzed with regard to three categories: 1) comparison of HIII and BioRID response, 2) influence of out-of-position seating configuration, and 3) effect of head restraint height. The data interpretation was augmented with motion tracking analysis to highlight potential kinematic root causes for the differences between HIII and BioRID response. It was found that the timing in impact response differed for both ATDs due to the structural disparity of their spines. Differences in time-histories of head acceleration, neck loads and moments were also discussed for the various testing configurations. It was also shown that HIII and BioRID produced contradictory neck data as a result of switching from a low profile to a high profile head restraint when tested in the leaning forward out-of-position setting.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Investigation of Rear Occupant Head Restraint Interaction in High-Severity Rear Impact using BioRID and HIII


    Additional title:

    Sae International Journal of Passenger Cars. Mechanical Systems
    Sae Int. J. Passeng. Cars – Mech. Syst


    Contributors:

    Conference:

    SAE 2011 World Congress & Exhibition ; 2011



    Publication date :

    2011-04-12


    Size :

    21 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    2011-01-0273 Investigation of Rear Occupant Head Restraint Interaction in High-Severity Rear Impact using BioRID and HIII

    Braganza, J. / Tavakoli, M.S. / Brelin-Fornari, J. et al. | British Library Conference Proceedings | 2011


    Rear Seat Inflatable Occupant Restraint System

    Romeo, David J. / Rose, Richard A. | SAE Technical Papers | 1972


    Comparison of the Rear Impact Biofidelity of BioRID II and RID2

    Matsuoka, F. / Sirey, F. / Cappon, H. et al. | SAE Technical Papers | 2002


    A comparison of the Hybrid III and BioRID II dummies in low-severity, rear-impact sled-tests

    Kim,A. / Anderson,K.F. / Berliner,J. et al. | Automotive engineering | 2001


    Safety performance of rear seat occupant restraint systems

    Padmanaban,J. / Ray,R.M. / Failure Analysis Associates,US | Automotive engineering | 1992