A six-degree-of-freedom simulation analysis was conducted to examine the effects of the lateral-directional static aerodynamic stability and control uncertainties on the performance of the automatic (no manual inputs) entry-guidance and control systems of the space shuttle orbiter. To establish the acceptable boundaries of the uncertainties, the static aerodynamic characteristics were varied either by applying a multiplier to the aerodynamic parameter or by adding an increment. Control-system modifications were identified that decrease the sensitivity to off-nominal aerodynamics. With these modifications, the acceptable aerodynamic boundaries were determined.


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    Titel :

    Entry dynamics of space shuttle orbiter with lateral-directional stability and control uncertainties at supersonic and hypersonic speeds


    Beteiligte:
    Stone, H. W. (Autor:in) / Powell, R. W. (Autor:in)

    Erscheinungsdatum :

    01.12.1977


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch