The performance of impulsive, gravity-assist trajectories often improves with the inclusion of one or more maneuvers between flybys. However, grid-based scans over the entire design space can become computationally intractable for even one deep-space maneuver, and few global search routines are capable of an arbitrary number of maneuvers. To address this difficulty a trajectory transcription allowing for any number of maneuvers is developed within a multi-objective, global optimization framework for constrained, multiple gravity-assist trajectories. The formulation exploits a robust shooting scheme and analytic derivatives for computational efficiency. The approach is applied to several complex, interplanetary problems, achieving notable performance without a user-supplied initial guess.


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    Title :

    Global Optimization of N-Maneuver, High-Thrust Trajectories Using Direct Multiple Shooting


    Contributors:

    Conference:

    AAS/AIAA Spaceflight Mechanics Meeting ; 2016 ; Napa, CA, United States


    Publication date :

    2016-02-14


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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