Displacement, velocity, and acceleration admittances were calculated for a realistic NASTRAN structural model of space shuttle for three conditions: liftoff, maximum dynamic pressure and end of solid rocket booster burn. The realistic model of the orbiter, external tank, and solid rocket motors included the representation of structural joint transmissibilities by finite stiffness and damping elements. Data values for the finite damping elements were assigned to duplicate overall low-frequency modal damping values taken from tests of similar vehicles. For comparison with the calculated admittances, position and rate gains were computed for a conventional shuttle model for the liftoff condition. Dynamic characteristics and admittances for the space shuttle model are presented.


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    Titel :

    Effects of Damping on Mode Shapes, Volume 2


    Beteiligte:
    R. M. Gates (Autor:in) / D. H. Merchant (Autor:in) / J. L. Arnquist (Autor:in)

    Erscheinungsdatum :

    1977


    Format / Umfang :

    841 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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