Direct force control, where the angle of attack and sideslip angle are modulated, has been proposed as an alternative to bank angle control for aero-assist maneuvers. This paper reimplements the current state-of-the-art aerocapture guidance for bank angle control, Fully Numeric Predictor-corrector Aerocapture Guidance (FNPAG), for direct force control. The optimal control theory underlying the structure of FNPAG is shown to not be applicable to the direct force control approach. Several solution structures for the longitudinal channel are compared by simulating dispersed three-degree-of-freedom trajectories for a reference mission consisting of a low lift-to-drag vehicle and a highly elliptical, 1-sol target orbit around Mars. The equations of motion for the lateral channel are derived, and a controller is designed to target a specified orbital plane. Finally, a Monte Carlo is used to demonstrate the performance of the new guidance.


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    Title :

    Development of a Numeric Predictor-Corrector Aerocapture Guidance for Direct Force Control


    Contributors:

    Conference:

    AIAA Scitech 2020 Forum ; 2020 ; Orlando, FL, United States


    Publication date :

    2020-01-06


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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