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Preliminary design of multiple gravity-assist trajectories

Vasile, Massimiliano and De Pascale, Paolo (2006) Preliminary design of multiple gravity-assist trajectories. Journal of Spacecraft and Rockets, 43 (4). pp. 794-805. ISSN 0022-4650

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    Abstract

    In this paper the preliminary design of multiple gravity-assist trajectories is formulated as a global optimization problem. An analysis of the structure of the solution space reveals a strong multimodality, which is strictly dependent on the complexity of the model. On the other hand it is shown how an oversimplification could prevent finding potentially interesting solutions. A trajectory model, which represents a compromise between model completeness and optimization problem complexity is then presented. The exploration of the resulting solution space is performed through a novel global search approach, which hybridizes an evolutionary based algorithm with a systematic branching strategy. This approach allows an efficient exploration of complex solution domains by automatically balancing local convergence and global search. A number of difficult multiple gravity-assist trajectory design cases demonstrates the effectiveness of the proposed methodology.

    Item type: Article
    ID code: 30865
    Keywords: spacecraft , trajectories, multiple gravity-assist trajectories, Mechanical engineering and machinery, Motor vehicles. Aeronautics. Astronautics
    Subjects: Technology > Mechanical engineering and machinery
    Technology > Motor vehicles. Aeronautics. Astronautics
    Department: Faculty of Engineering > Mechanical and Aerospace Engineering
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    Depositing user: Pure Administrator
    Date Deposited: 15 Jun 2011 10:17
    Last modified: 03 Jun 2012 12:23
    URI: http://strathprints.strath.ac.uk/id/eprint/30865

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