载人登月返回再入有关问题初步研究

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...

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

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.