A combination of multiple gravity-assist and impulsive Delta-V maneuvers is often required for interplanetary and interstellar space missions, such as NASA’s Voyager 1 and 2, Galileo, and Cassini missions. The design of such complex interplanetary missions is difficult with traditional mission analysis techniques because the mission must be prepruned to determine potential trajectories. Prepruning has been necessary because these mission often require the optimization of dozens of variables in a highly nonlinear and discontinuous design space. This process risks pruning nonintuitive solutions, which may potentially contain the optimal trajectory. In this paper, a hybrid optimization algorithm that is capable of determining optimal interplanetary trajectories, including the number of gravity assists and the planetary flyby order, is developed. The hybrid optimization algorithm uses a stochastic genetic algorithm to globally search the design space, as well as traditional nonlinear programming gradient-based optimization tools to determine locally optimal trajectories. By combining the global convergence properties of genetic algorithms with the accuracy of gradient-based solvers, a robust optimization algorithm capable of determining near-optimal solutions for a complex interplanetary space mission is developed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hybrid Algorithm for Multiple Gravity-Assist and Impulsive Delta-V Maneuvers


    Contributors:
    Wagner, Sam (author) / Wie, Bong (author)

    Published in:

    Publication date :

    2015-11-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    GPU Accelerated Genetic Algorithm for Multiple Gravity-Assist and Impulsive Delta V Maneuvers

    Wagner, S. / Wie, B. / American Institute of Aeronautics and Astronautics; American Astronautical Society | British Library Conference Proceedings | 2012



    Spacecraft Planetary Capture Using Gravity-Assist Maneuvers

    Malcolm Macdonald / Colin McInnes | AIAA | 2005


    Gravity-Assist Maneuvers Augmented by the Lorentz Force

    Streetman, Brett / Peck, Mason A. | AIAA | 2009