地月空间航天器集群飞行轨道构形机理研究

Principle and evolvement rule of trajectory configuration of cislunar cluster flight spacecrafts will be studied, and the key problem will be relative motion between modules of the spacecraft under multi-gravity in cislunar space. The studies include: analytical expressions of absolute motion and relative motion of the spacecraft clusters under multi-gravity will be established, which extending from existing analytical models include orbit dynamics of deep space exploration and formation flying theories of spacecraft under single gravity; based on analytical perturbationtheory of the third body, analytical models include Moon/Earth gravitational perturbations will be set up; based on analytial solutions combined with numerical method, variational features of the cluster configuration will be analyzed, and applicable configurations will be designed. The research of cislunar cluster flight will go beyond extension of the Hill Formula, the C-W Formula and the T-H Formula, which will involve some new theory and technology, and will complement existing theories of orbit dynamics of deep space exploration and relative motion of spacecrafts, and will direct design method of cluster spacecraft flying in cislunar space and even in interplanetary space in future. Presently there's no similar researching reference, and the preview research shows this problem is feasible.

对地月空间航天器集群飞行的轨道构形机理及其演变规律开展研究，核心是以地月空间为背景研究多引力体下航天器模块间相对运动问题。主要包括：在深空探测轨道力学及单引力体下航天器编队理论等现有解析模型基础上延拓，建立多引力体下的集群航天器绝对和相对运动解析表达式，研究地月空间非周期非开普勒轨道快速设计方法，在此基础上分析地月空间集群构形的变化规律，尝试寻找有应用价值的集群构形，探索轨道中途修正方法和集群构形保持方法。 地月空间集群飞行研究，将超出Hill方程、C-W方程以及T-H方程的研究范围，将涉及轨道动力学领域一部分新的理论、技术与方法，并且在大跨度空间物理量的原位高精度动态测量等领域具有重要应用价值。目前国内外均无可查阅的相类似研究成果。

对地月空间航天器集群飞行的轨道构形机理及其演变规律开展研究，核心是以地月空间为背景研究多引力体下航天器模块间相对运动问题。对国内外研究现状进行了持续与充分的调研和分析；对地月空间单航天器轨道进行了系统全面的特征分析，针对各种典型轨道给出了快速设计方法；建立了多引力体下多航天器相对运动动力学模型，通过该模型建立了地月空间航天器相对运动方程，并进行了线性化和归一化处理；获得了无控情况下的地月空间集群典型构型以及演变规律；实现了地月空间集群飞行构型控制，并进行了仿真验证。.项目研究超出了Hill 方程、C-W 方程以及T-H 方程的研究范围，构建了地月空间轨道动力学与控制方面一部分新的理论与方法，在大跨度空间物理量的原位高精度动态测量等领域具有应用价值。