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本文研究宇航员携带舱外机动装置 (MMU)进行舱外飞行 ,营救脱离空间站的目标 ,随后返回空间站的Hill制导方法。根据最小燃料指标 ,精度要求和时间约束 ,优化设计MMU出舱营救脱离空间站的宇航员或其它装置的飞行轨迹。求出 17种典型情况下的最小燃料解 ,提出了救援轨迹设计准则。本文分析了MMU交会目标过程中 ,导航和控制误差对Hill制导瞄准点误差的影响 ,提出了用多脉冲Hill制导按标称最优轨迹飞行的设计方案 ,从而既可以实现与目标和空间站的高精度交会 ,又可以节省燃料
This paper studies astronauts carrying an extra-ship maneuvering unit (MMU) for an extra-maritime spacecraft mission to rescue a space station and then returning to the Hill guidance method at the space station. According to the minimum fuel index, accuracy requirement and time constraint, the MMU is optimized to rescue the flight path of the astronaut or other device leaving the space station. Calculate the minimum fuel solution in 17 typical cases and propose the design guideline of rescue trajectory. In this paper, the influence of navigation and control error on Hill guidance aiming point error is analyzed in MMU rendezvous target. A design scheme of multi-pulse Hill guidance based on nominal optimal trajectory is proposed, which can not only achieve high target and space station Accuracy intersection, but also can save fuel