不规则小行星附着可达区生成方法

Mei Yi Huang, Zi Xuan Liang*, Ping Yuan Cui

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

4 引用 (Scopus)

摘要

A reachable zone generation method based on the dynamic neighborhood search is developed for landing on irregularly shaped asteroids. Firstly, the reachable zone is formulated, and a centroid distance mapping function is designed to constrain the terminal position of a trajectory with an unfixed landing point. On this basis, the reachable zone generation problem is decomposed into three sub-problems: the reference point calculating, the starting point calculating, and the boundary points searching. The reference and the starting points are solved by a trajectory optimization for minimum fuel and maximum distance, respectively. The boundary points are calculated using a guided dynamic neighborhood search method, and in each search cycle, the minimum fuel is optimized with a fixed landing point. Finally, the proposed method is verified using the 433 Eros model. The results indicate that the method is effective in generating a reachable zone on an irregular surface, efficient in searching the boundary points, and applicable to various initial positions and fuel consumptions.

投稿的翻译标题Reachable Zone Generation for Irregularly Shaped Asteroid Landing
源语言繁体中文
页(从-至)1550-1558
页数9
期刊Yuhang Xuebao/Journal of Astronautics
42
12
DOI
出版状态已出版 - 30 12月 2021

关键词

  • Asteroid landing
  • Neighborhood search
  • Reachable zone
  • Trajectory optimization

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