Multiobjective genetic optimization of Earth-Moon trajectories in the restricted four-body problem

被引:35
|
作者
Assadian, Nima [1 ]
Pourtakdoust, Seid H. [1 ]
机构
[1] Sharif Univ Technol, Ctr Res & Dev Space Sci & Technol, Dept Aerosp Engn, Tehran, Iran
关键词
Multiobjective trajectory optimization; Restricted four-body problem (R4BP); Pareto-optimal; Ballistic capture; Earth to Moon transfer; LOW-ENERGY; TRIANGULAR POINTS; TRANSFERS; CAPTURE; ALGORITHMS; MOTIONS;
D O I
10.1016/j.asr.2009.10.023
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
In this paper, optimal trajectories of a spacecraft traveling from Earth to Moon using impulsive maneuvers (Delta V maneuvers) are investigated. The total flight time and the summation of impulsive maneuvers Delta V are the objective functions to be minimized. The main celestial bodies influencing the motion of the spacecraft in this journey are Sun, Earth and Moon. Therefore, a three-dimensional restricted four-body problem (R4BP) model is utilized to represent the motion of the spacecraft in the gravitational field of these celestial bodies. The total Delta V of the maneuvers is minimized by eliminating the Delta V required for capturing the spacecraft by Moon. In this regard, only a mid-course impulsive maneuver is utilized for Moon ballistic capture. To achieve such trajectories, the optimization problem is parameterized with respect to the orbital elements of the ballistic capture orbits around Moon, the arrival date and a mid-course maneuver time. The equations of motion are solved backward in time with three impulsive maneuvers up to a specified low Earth parking orbit. The results show high potential and capability of this type of parameterization in finding several Pareto-optimal trajectories. Using the non-dominated sorting genetic algorithm with crowding distance sorting (NSGA-II) for the resulting multiobjective optimization problem, several trajectories are discovered. The resulting trajectories of the presented scheme permit alternative trade-off studies by designers incorporating higher level information and mission priorities. (C) 2009 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:398 / 409
页数:12
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