Size scaling trends are reviewed and updated. An investigation is presented into the effect that airplane size has on dynamic floor pulses generated within the cabin during a crash impact event. Included is: (1) A review of narrow-body and wide-body section test results and supporting analytical model results; (2) The utilization of the Controlled Impact Demonstration (CID) validated KRASH model to perform additional parametric studies; (3) Defined relationships between parameters which influence aircraft structure dynamic response; and (4) Developed airplane preliminary size effect trend curves for floor dynamic pulses in terms of triangular pulse magnitudes, velocity changes and pulse duration. A simple approximate expression relating aircraft fuselage crush energy dissipation and kinetic energy are utilized to generate a set of triangular pulse velocity - crush distance - peak acceleration curves. Estimated effective crush distances for various classes of airplane sizes or categories and available acceleration, velocity and crush data are plotted. Plots for vertical-direction and longitudinal-direction are presented.


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    Titel :

    Effect of Aircraft Size on Cabin Floor Dynamic Pulses


    Beteiligte:
    G. Wittlin (Autor:in) / L. Neri (Autor:in)

    Erscheinungsdatum :

    1990


    Format / Umfang :

    60 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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