载人登月返回再入有关问题初步研究  

Preliminary Study on the Return and Re-entry of Manned Lunar Landing

作　　者：贾世锦[1] 

机构地区：[1]中国空间技术研究院载人航天总体部,北京100094

出　　处：《航天返回与遥感》2011年第2期18-25,共8页Spacecraft Recovery & Remote Sensing

基　　金：国家重大科技专项工程

摘　　要：载人登月返回再入涉及到三体问题,且与近地轨道返回再入相比速度更大。因此再入方式的选择和再入弹道的设计涉及到飞行器的方案和再入返回的安全。通过对不同返回再入方式的对比分析,认为跳跃式再入是优选方案。再入点选择、再入过载、升阻比、再入航程、再入轨道倾角都是返回再入方案设计中需要考虑的问题,需结合工程实际进行深化论证,文章提出了参数选取的初步建议。The return and re-entry of manned lunar landing involves three-body problem,and the speed is greater comparing with that of returning from earth orbit.Therefore,the choice of re-entry type and the design of re-entry trajectory are vital for aircraft and the safety of re-entry.By comparisons among different types of re-entry,it is regarded that the skip re-entry is an optimal scheme.The choice of re-entry point,lift-drag ratio,re-entry flight and re-entry orbital inclination are all crucial issues which should be considered in the design of re-entry problems.These problems need to be testified by systematic engineering practices,and some preliminary advice about the various parameters selection are proposed in this paper.

关 键 词：航天器 跳跃式再入 约束分析 载人登月 

分 类 号：V525[航空宇航科学与技术—人机与环境工程]