A six-degree-of-freedom simulation analysis was performed for the space shuttle orbiter entry from Mach 10 to Mach 2.5 with realistic off-nominal conditions using the flight control system referred to as the November 1976 Integrated Digital Autopilot. The off-nominal conditions included: (1) aerodynamic uncertainties in extrapolating from wind tunnel of flight characteristics, (2) error in deriving angle of attack from onboard instrumentation, (3) failure of two of the four reaction control-system thrusters on each side (design specification), and (4) lateral center-of-gravity offset. Many combinations of these off-nominal conditions resulted in a loss of the orbiter. Control-system modifications were identified to prevent this possibility.


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    Titel :

    Analysis of Space Shuttle Orbiter Entry Dynamics from Mach 10 to Mach 2.5 with the November 1976 Flight Control System


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

    Erscheinungsdatum :

    1980


    Format / Umfang :

    163 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch






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