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基于末级钝化推力变轨的月球借力轨道设计
引用本文:李重远,王建明,周天帅,何兆伟,朱冬阁.基于末级钝化推力变轨的月球借力轨道设计[J].导弹与航天运载技术,2016(1):9-12.
作者姓名:李重远  王建明  周天帅  何兆伟  朱冬阁
作者单位:北京宇航系统工程研究所,北京,100076
摘    要:对于运载火箭发射探月返回飞行试验器任务,火箭末级会跟随试验器再入返回地球,因其再入速度快、落区散布范围广,存在严重的安全隐患.为解决末级再入带来的安全性问题,提出基于末级钝化推力变轨的月球借力轨道设计方法,使末级进入绕地月飞行的大椭圆轨道.利用钝化推力实现月球引力辅助变轨,进而达到优化绕地月飞行轨道近地点高度的目的.

关 键 词:探月返回  火箭末级  再入地球  钝化推力  月球借力  轨道设计

Study on the Moon-gravity Assisted Trajectory Design Utilizing Passivated-thrust of Final Stage of Launch Vehicle Maneuver
Abstract:In the lunar flyby-return missions, the final stage of launch vehicle should goes with lunar exploration spacecraft and return to Earth, which brings serious security concerns for its ultra-high re-entering speed and ultra-wide falling region. Herein, the development on the large ellipse orbiting-Earth trajectory design is studied. The security problem of final stage of vehicle in the reentry process is solved. Passivated-thrust maneuver is adopted in the Moon-gravity assisted trajectory design, and the altitude of the perigee of the orbiting-Earth is optimized.
Keywords:Lunar return  Final stage of launch vehicle  Re-entry earth  Passivated-thrust  Lunar gravity assist  Trajectory design
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