【摘要】 文章讨论了非常规再入/进入问题。相对于航天器完成着陆回收或弹道导弹攻击等既定功能的情况,非常规再入/进入特指结束工作后的各级助推器或运载器残骸、失效卫星或其它在轨运行人造飞行物坠落等非功能性的再入/进入。当再入/进入稠密大气环境时,对非常规再入/进入问题的分析涉及飞行动力学和气动力、气动热的综合应用;考虑到这些非常规再入/进入飞行体的复杂外形一般不是设计用于在大气中飞行的,故当其以极高速度穿越大气层时,对其损毁及飞行情况的研究将带来技术分析上的复杂性。文章针对非常规再入/进入问题,给出了一种弹道—气动力—气动热综合计算分析的技术途径,并用算例说明了方法的有效性。最后,提出了解决该类问题的思路和方向。更多还原

【Abstract】 The unconventional reentry/entry is discussed in this paper, which refer to rockets debris, failure satellites or malfunctional manmade orbiters falling, relative to the conventional mission such as spacecraft’s recapture or ballistic missile’s attacking. The unconventional reentry/entry relates to flight dynamics, aerodynamics and aeroheating. And it brings extra complexity for those shapes usually unfit for flying within atmosphere. An approach to integrative calculation of trajectory, aerodynamics and aeroheating is proposed and verified through a few examples. Some idea and direction to solve these problems are proposed lastly.更多还原