The Americans with Disabilities Act (ADA) has led to an increased number of wheelchair users seeking transportation services. Many of these individuals are unable to transfer to a vehicle and are instead required to travel seated in their wheelchairs. Unfortunately, wheelchairs are not typically designed with the same occupant protection features as motor vehicle seats, and wheelchair seated occupants may be at higher risk for injury in a crash. To study the effects of crash level forces on wheelchairs and their occupants, it is useful to simulate crash conditions using computer modeling. This study has used a dynamic lumped mass crash simulator, in combination with sled impact testing, to develop a model of a secured commercial powerbase and restrained occupant subjected to a 20 g/30 mph frontal motor vehicle crash. Time histories profiles of simulation-generated wheelchair kinematics, occupant accelerations, tiedown forces and occupant restraint forces were compared to sled impact testing for model validation. Validation efforts for this model were compared to validation results found acceptable for the ISO/SAE surrogate wheelchair model. This wheelchair-occupant simulation model can be used to investigate wheelchair crash response or to evaluate the influence of various factors on occupant crash safety.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Computer simulation and sled test validation of a powerbase wheelchair and occupant subjected to frontal crash conditions


    Contributors:
    Bertocci, G.E. (author) / Szobota, S. (author) / Hobson, D.A. (author) / Digges, K. (author)


    Publication date :

    1999


    Size :

    11 Seiten, 10 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






    A 100 G Frontal Crash Sled Test System

    Miller, P. Michael / Nowak, Todd J. | SAE Technical Papers | 2004


    A 100 G Frontal Crash Sled Test System

    Miller, P. M. / Nowak, T. J. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    A 100 G frontal crash sled test system

    Miller,P.M. / Nowak,T.J. / MGA Research,US | Automotive engineering | 2004