嫦娥三号软着陆轨道设计与控制策略问题  

The Design and Control Strategy of Chang'e Ⅲ Soft Land

作　　者：孙丽萍 杨景超 刘士龙 赵静[1] 王枭婷 SUN Li-ping;YANG Jing-chao;LIU Shi-long;ZHAO Jing;WANG Xiao-ting(Department of electrical and information engineering, Hebei Jiaotong Vocational And Technical College, Shijiazhuang, Hebei 050091;Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050020)

机构地区：[1]河北交通职业技术学院电气与信息工程系,河北石家庄050091 [2]河北中医学院,河北石家庄050200

出　　处：《新型工业化》2018年第12期108-112,122,共6页The Journal of New Industrialization

摘　　要：针对嫦娥三号软着陆轨道设计与控制策略的实际问题,通过合理的假设,以理论力学(万有引力、开普勒定律等)和卫星力学知识为理论基础,结合微分方程和微元法,求解着陆准备轨道近月点和远月点的位置,以及嫦娥三号相应速度的大小与方向;并对软着陆中的6个阶段建立相应控制方案及模型,然后求解模型并优化,实现对燃料、时间、避障的优化控制策略。最后,通过对建立的模型进行误差分析及评价,说明本文的数学模型合理且具有重要参考价值。On the basis of the theoretical mechanics including universal gravitation, and Kepler's laws and satellite mechanics knowledge as well as differential equation and Mnitesimal method, this research, withthe rational assumption, is targeted at the practical problems of the design and control strategy of Chang'e III soft landing orbit, to finally get the positon of perilune and apolune on the Landing preparation orbit as well as the corresponding magnitude and direction of velocity. And the corresponding control strategy and model for six stages in the soft landing are established and optimized to realize the optimal control strategy in terms of fuel, time and obstacle avoidance. Finally, through the error analysis and evaluation of the model, it shows that the mathematical model is reasonable and has important reference value.

关 键 词：软着陆 参数优化 分阶段最优化 轨道设计 月面定位 

分 类 号：V476.3[航空宇航科学与技术—飞行器设计]