A trajectory optimization strategy for a multiple rendezvous mission with Trojan asteroids

Lucas Brémond, Yuichi Tsuda, Ryu Funase, Jun'ichiro Kawaguchi

研究成果: Conference article査読

抄録

In the overall context of a solar sail mission in the vicinity of the Trojan asteroids swarm around the L4 Lagrange point, the purpose of this work is to find an optimal sequence of asteroids rendezvous that accommodates given mission constraints. A currently considered strategy to solve this problem will be presented and design choices will be outlined. A subset of the Trojan asteroids database is first extracted based on orbital elements considerations and a tree containing all the potential sequences is generated. A first set of pruning techniques is applied to the tree in order to quickly reduce the search space by several orders of magnitude. A global optimization method is then used: it combines a branch-and-bound approach and an evolutionary algorithm to find good sequence order, departure date, transfer and coasting durations. In order to enable a fast computation of potential transfer costs, the dynamics are linearized around L4 and the ΔVs are computed analytically. Preliminary results show a drastic reduction of the search space along with a reasonable accuracy on the cost prediction. This method has been used to analyze a tour scenario starting from 588 Achilles and including three rendezvous; the final result provides a list of sequences of potential interest.

本文言語English
ページ(範囲)1007-1022
ページ数16
ジャーナルAdvances in the Astronautical Sciences
148
出版ステータスPublished - 2013
外部発表はい
イベント23rd AAS/AIAA Space Flight Mechanics Meeting, Spaceflight Mechanics 2013 - Kauai, HI, United States
継続期間: 2013 2 102013 2 14

ASJC Scopus subject areas

  • 航空宇宙工学
  • 宇宙惑星科学

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