空间引力波探测正三角形编队动力学机理与控制方法

Triangular Formation Dynamics and Optimal Control for Space-based Gravitational-Wave Observatory

空间引力波探测要求航天器以正三角形编队稳定运行,其形成方式与维持方法面临诸多挑战.对国内外已提出的三类正三角形编队方案进行了对比分析,总结和梳理了各类正三角形构形的内在形成机理,深入探讨了不同构形的摄动演化规律和稳定性条件,在此基础上提出了空间正三角形编队的初始化、保持与重构控制原理.研究结果将为空间引力波探测编队构形的设计与控制提供理论基础.

Space-based gravitational-wave observatory requires that the spacecraft fly in a triangular formation in which the configuration initialization and keeping problems should be solved carefully.This paper classifies the three kinds of triangular formations and makes some comparison and analysis.The dynamics mechanism of this triangular formation is summarized and the long-term propagation characteristics under kinds of perturbations are discussed.The control methods for initialization,keeping and reconfiguration are designed.The results will provide a fundamental theory for space-based gravitational-wave observatory missions.