This paper shows that the shock motion experienced by the passenger compartment during inelastic impact of an automobile into a barrier may be simulated in the laboratory by elastic impact between a test carriage and a reaction mass. Mathematical derivations show that impact-with-rebound is equivalent to the “impulse” (test specimen accelerated backward from rest) and impact-without-rebound simulation methods.Velocity, displacement, and dimension formulae are derived for all three test methods and are compared in terms of system performance and configuration. It is shown that for the same performance, the rebounding simulator requires less impact velocity (and therefore less total energy), less shock pulse programmer displacement, and shorter track length than the other systems.One type of rebounding shock pulse programmer is discussed in detail. It is explained how the force-versus-deflection characteristic can be controlled by adjusting internal gas pressures.A typical crash simulation system using the impact-with-rebound technique is briefly discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Impact-With-Rebound: An Advanced Tool for Laboratory Crash Simulation


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Automobile Safety Conference ; 1970



    Publication date :

    1970-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Crash simulation of fuselage section in the rebound process and the secondary-impact process

    Jin, Zibo / Li, Daochun / Xiang, Jinwu | Emerald Group Publishing | 2020


    Advanced crash discrimination using crash impact sound sensing ( CISS )

    Feser,M. / McConnell,D. / Brandmeier,T. et al. | Automotive engineering | 2006


    Advanced Crash Discrimination using Crash Impact Sound Sensing (CISS)

    Lauerer, Christian / McConnell, Douglas / Feser, Michael et al. | SAE Technical Papers | 2006


    Investigation of the Crash-Impact Characteristics of Advanced Airframe Structures

    J. D. Cronkhite / T. J. Haas / V. L. Berry et al. | NTIS | 1979


    Modeling and Simulation of Frontal Crash Impact Response

    Nakaya, Hirosuke / Okada, Kazuyuki / Kurimoto, Koji | SAE Technical Papers | 1981