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	Trajectory Optimization of Multi-Asteroids Exploration with Low Thrust
	Zhu, Kaijian ; Jiang, Fanghua ; Li, Junfeng ; Baoyin, Hexi
	2010-10-12 ; 2010-10-12
关键词	Low-Thrust Trajectory Optimization Hybrid Algorithm ORBIT TRANSFER DIFFERENTIAL EVOLUTION Engineering, Aerospace
中文摘要	Multi-asteroid tour missions require consideration of the visiting sequences and trajectory optimization for each leg, which is a typical global optimization problem. In this paper, the problem is divided into a multi-level optimization problem. Determination of the visiting sequence plays a key part for a tour mission. In this paper, the energy differences between different orbits and phase differences are used to estimate the energy required for a tour mission. First, this paper discusses the relation between fuel cost for transfer and classical orbit elements difference based on the energy relation of Keplerian orbits and the characteristics of low-thrust spacecraft. Second, the phase difference is combined with the energy difference to achieve the rendezvous energy. In addition, the lower and upper bounds of rendezvous time can be estimated by analyzing the phase difference. Very-low-thrust trajectory optimization problems have always been considered difficult problems due to the large time scales. In this paper, a hybrid algorithm of PSO (particle swarm optimization) and DE (differential evolution) is used to achieve a solution to the energy-optimal tour mission. Based on GTOC-3 (Global Trajectory Optimization Competition), this paper determines the exploration sequence and provides the optimal solution.
语种	英语 ; 英语
出版者	JAPAN SOC AERONAUT SPACE SCI ; TOKYO ; KOKUKAIKAN-BUNKAN 1-18-2 SHINBASHI MINATO-KU, TOKYO, JAPAN
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78927]
专题	清华大学
推荐引用方式 GB/T 7714	Zhu, Kaijian,Jiang, Fanghua,Li, Junfeng,et al. Trajectory Optimization of Multi-Asteroids Exploration with Low Thrust[J],2010, 2010.
APA	Zhu, Kaijian,Jiang, Fanghua,Li, Junfeng,&Baoyin, Hexi.(2010).Trajectory Optimization of Multi-Asteroids Exploration with Low Thrust..
MLA	Zhu, Kaijian,et al."Trajectory Optimization of Multi-Asteroids Exploration with Low Thrust".(2010).

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