Low-energy cislunar and trans-lunar transfer trajectories from the view of libration points

Ming Xu, Shengli Liu, Rui Qi

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

There exist cislunar and trans-lunar libration points near the Moon, which are referred as the LL\ and LL\ points respectively and can generate the different types of low-energy trajectories transferring from Earth to Moon. The time-dependent analytic model including the gravitational forces from Sun, Earth and Moon is employed to investigate the energy-minimal and practical transferring trajectories. Different from the circular restricted three body problem (CR3BP), the equivalent gravitational equilibria are defined according to the geometry of instantaneous Hill's boundary due to the gravitational perturbation from Sun. The relationship between the altitudes of periapsis and eccentricities is achieved from the Poincare mapping for all the lunar captured trajectories, which acts as an initial guess for the whole low-energy trajectories from Earth to Moon. Compared with CR3BP and Hill model, the minimal energy required by the capturing trajectory to the lunar surface is deduced in the spatial bi-circular model (SBCM). It is presented that the asymptotical behaviors of invariant manifolds approaching to or from the libration points or Halo orbits are destroyed in the time- inpendent model. The energy-minimal and practical cislunar transferring trajectories are acquired by transiting LL\ and LL2 points. Copyright

源语言英语
主期刊名63rd International Astronautical Congress 2012, IAC 2012
5877-5889
页数13
出版状态已出版 - 2012
已对外发布
活动63rd International Astronautical Congress 2012, IAC 2012 - Naples, 意大利
期限: 1 10月 20125 10月 2012

出版系列

姓名Proceedings of the International Astronautical Congress, IAC
7
ISSN(印刷版)0074-1795

会议

会议63rd International Astronautical Congress 2012, IAC 2012
国家/地区意大利
Naples
时期1/10/125/10/12

指纹

探究 'Low-energy cislunar and trans-lunar transfer trajectories from the view of libration points' 的科研主题。它们共同构成独一无二的指纹。

引用此

Xu, M., Liu, S., & Qi, R. (2012). Low-energy cislunar and trans-lunar transfer trajectories from the view of libration points. 在 63rd International Astronautical Congress 2012, IAC 2012 (页码 5877-5889). (Proceedings of the International Astronautical Congress, IAC; 卷 7).