摘要
混合轨道是载人登月轨道的重要类型之一。利用混合轨道的组成特点,提出在双二体假设下以自由返回轨道为基础的混合轨道计算方法。主要对混合轨道的特性进行分析,给出混合轨道在能量消耗和飞行时间等方面的特性。在涉及月球运动的计算时,考虑月球运动的非圆性,对传统双二体假设略作修改。给出混合轨道的设计实例,仿真结果验证了本文提出方法的有效性。
Hybrid trajectory is one of the most important trajectory types for manned lunar landing mission. Using the componential characteristic of hybrid trajectory,a hybrid trajectory calculation method based on free return trajectory was proposed under double two-body model. Then,the major characteristics of hybrid trajectory were analyzed,such as energy requirement and time of flight. A little modification was made when calculating the ephemeris of the Moon,in which the Moon motion around Earth was considered as noncircular orbit instead of circular orbit. Finally,a design example was presented while the results of the simulation validate the method proposed.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2010年第4期61-67,共7页
Journal of National University of Defense Technology
关键词
载人登月
混合轨道
特性分析
双二体假设
manned lunar landing mission
hybrid trajectory
characteristic analysis
double two-body model
