Preliminary design of multiple gravity-assist trajectories

Massimiliano Vasile, Paolo De Pascale

Research output: Contribution to journalArticle

100 Citations (Scopus)
143 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)794-805
JournalJournal of Spacecraft and Rockets
Volume43
Issue number4
DOIs
Publication statusPublished - Jul 2006

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swingby technique
Gravitation
trajectory
Trajectories
gravity
optimization
Global optimization
completeness
methodology
trajectories

Keywords

  • spacecraft
  • trajectories
  • multiple gravity-assist trajectories

Cite this

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title = "Preliminary design of multiple gravity-assist trajectories",
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Preliminary design of multiple gravity-assist trajectories. / Vasile, Massimiliano; De Pascale, Paolo.

In: Journal of Spacecraft and Rockets, Vol. 43, No. 4, 07.2006, p. 794-805.

Research output: Contribution to journalArticle

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