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深远空连续推进动力与施图林格解的解析
栾恩杰
国家国防科技工业局, 北京 100048
摘要:
针对太阳系远深距离的探测将是人类下一阶段深空探测活动的主要目标。这一目标的实现依赖于探测器连续推进动力技术的突破。从描述连续常值推力下太空飞行的施图林格解出发,对其中反映的深远空飞行任务有效载荷比、任务时间、飞行距离等关键参数与发动机性能之间的关系进行了深入分析。给出了在特定任务时长、特定飞行距离要求下发动机比冲、功率需要满足的条件及其对有效载荷比、最终飞行速度等指标的影响。此外,基于二体轨道动力学对太阳系行星探测的大椭圆转移轨道和转移能量进行了推导,并对连续推力的太阳帆任务方案涉及的关键技术指标做了理论性的计算。这些结论是对深空探测连续推力方案基础理论的归纳,可以为我国未来开展深远空探测活动提供重要的启发和指导。
关键词:  深远空;连续推力;施图林格解
DOI:10.15982/j.issn.2095-7777.2018.04.001
分类号:V43
基金项目:
Continuous Propulsion Dynamics in very Far Space Exploration and Analysis of the Stuhlinger's Solution
LUAN Enjie
State Administration of Science, Technology and Industry for National Defence, PRC, Beijing 100048
Abstract:
The exploration of the very far space in solar system will be a main target of the next phase of deep space exploration activities. The achievement of this goal relies on the breakthrough of the continuous propulsion power technology. Basing on the description of the Stuhlinger's solution for spaceflight under continuous constant thrust, the relationships between the key parameters such as the payload ratio, mission time and flight distance of the very far space missions and the engine performance are analyzed. The conditions that the engine specific impulse and power need to satisfy and their effects on the payload ratio and the final flight speed are given under specific mission duration and specific flight distance requirements. In addition, the large elliptical transfer orbit and its transfer energy requirement of planetary exploration in solar system are derived under the two-body orbital dynamics, and the key technical indicators involved in the continuous thrust solar sail mission are theoretically calculated. These conclusions are the summerized by the basic theory of continuous propulsion scheme in deep space exploration, which can provide important inspiration and guidance for China's future deep space activities.
Key words:  very far space;continuous thrust;stuhlinger's solution