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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。
Manned lunar return and re-entry involve the three-body issue and are even more speedy than return or re-entry of near-Earth orbit. Therefore, the design of reentry modes and reentry trajectory involves the safety of aircraft programs and reentries. Through the comparative analysis of different return reentrant ways, it is considered that jumping reentrant is the best choice. Re-entry point selection, re-entry overload, lift-resistance ratio, re-entry range and re-entry orbit inclination are all issues that need to be considered in the design of return reentry program. Deepening demonstration is needed in combination with engineering practice. .