摘要
针对行星大气进入、动力下降过程动力学环境及约束条件等进行了分析,回顾了近年来行星着陆轨迹优化的研究现状。在此基础上,结合行星着陆轨迹优化技术在动力学特征、约束条件、不确定环境方面的特点,从非线性动力学的等价/近似变换技术、复杂约束条件下的最优轨迹快速求解技术、不确定条件下的能控/能达性分析技术三个方面,对行星着陆轨迹优化的关键技术进行了梳理。
Focusing on the high landing safety and accuracy requirements in future planetary landing and sample return missions,the landing dynamic environment and constraints of planetary atmospheric entry and powered descent landing are analyzed.Then,research progress of the planetary landing trajectory optimizations is reviewed.Based on the characteristics of planetary landing trajectory optimization,the key techniques are summarized on the transformation of nonlinear dynamics,optimal trajectory rapid solving under complex constraints,and reachability/controllability analysis under uncertainty.
作者
崔平远
龙嘉腾
朱圣英
修文博
CUI Ping-yuan;LONG Jia-teng;ZHU Sheng-ying;XIU Wen-bo(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Autonomous Navigation and Control for Deep Space Exploration,Ministry of Industry and Information Technology,Beijing 100081,China;Key Laboratory of Dynamics and Control of Flight Vehicle,Ministry of Education,Beijing 100081,China)
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2021年第6期677-686,共10页
Journal of Astronautics
基金
国家重点研发计划(2019YFA0706500)
国家自然科学基金(61873302,61973032,62003035)
基础科研项目(JCKY2018602-B002,JCKY2019602D022)
民用航天预研项目
中国博士后科学基金(2020M670167)。
关键词
行星着陆
轨迹优化
大气进入
动力下降
小天体软着陆
Planetary landing
Trajectory optimization
Atmospheric entry
Powered descent
Asteroid soft landing
