trans-lunar trajectory design for lunar probe assembled in leo
- Paper number
IAC-08.A3.2.INT17
- Author
Dr. Qi-bo Peng, National University of Defence Technology, China
- Coauthor
Dr. Guo-jin Tang, National University of Defense Technology, China
- Coauthor
Dr. Hai-yang Li, National University of Defense Technology, China
- Year
2008
- Abstract
It is important to research the Lunar exploration based on the Low Earth Orbit (LEO) transportation node assembly. Within the existing launch power, more payloads can be carried to the Low Lunar Orbit (LLO) or the surface of the moon in this mode. More complex mission for Lunar exploration or manned Lunar landing can be performed. However, after the assembly, the parking orbit near the Earth for Lunar probe leaving is fixed. If orbit maneuver, especially out-of-plane maneuver is implemented in LEO for the mission of cislunar transfer, more fuel would be consumed. To reduce the consumption of propellant, it is important to design the trans-Lunar trajectory of Lunar probe leaving from the fixed parking orbit near the Earth. In this paper, considering the kinematic law of the moon, an integrated mathematical model is established, and the constraint conditions are given according to practical situations in engineering. Then the main problem for trans-Lunar trajectory design is solving the orbit dynamics equation in some constraint conditions. As it is difficult to solve it directly, optimization method is used in this paper. Appropriate object function and constraint conditions are chosen, and the equation is solved by using genetic algorithm and SQP method. The parameters of trans-Lunar trajectory are calculated using numerical method. Then the launch windows are analyzed and the orbit maneuver strategies are put forward. At last, using STK software, a method for revision of the results in primary design is given, and the high precision trans-Lunar trajectory is gained.
- Abstract document
- Manuscript document
IAC-08.A3.2.INT17.pdf (🔒 authorized access only).
To get the manuscript, please contact IAF Secretariat.