GEO航天器在轨燃料补给任务调度及优化

发布时间：2017-12-31 16:02

本文关键词：GEO航天器在轨燃料补给任务调度及优化　出处：《南京航空航天大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着航天技术的快速发展,航天活动的目标不仅是完成任务,还要尽量延长航天器在轨寿命,同时深空探测的发展也受到燃料的限制,因此,在轨燃料补给技术越来越受到各航天大国的重视。此外,在轨燃料补给技术日益成熟,空间燃料站的设想也被提出,基于空间燃料站的在轨燃料补给任务调度研究具有很大的预研意义。本文以多个GEO航天器为在轨燃料补给对象,研究基于空间燃料站的在轨燃料补给的任务调度及优化问题。首先,基于Battin方法求解多圈Lambert轨道转移问题,得到了轨道转移的速度增量和转移时间的关系,加入末端滑行对两者的关系进行优化,便于将时间分配方案转化为整数规划问题;然后,研究了基于空间燃料站的在轨燃料补加任务模型,以GEO航天器为例,梳理在轨燃料补给任务中的变量和约束条件,以得到近似最优服务顺序和该顺序下的近似最佳时间分配方案为优化目标,构建了GEO航天器在轨燃料补给任务调度模型;接着,基于遗传算法,研究了GEO航天器在轨燃料补给任务调度算法;最后,在Matlab上对任务调度算法进行了数值仿真,仿真结果表明本文提出的方案是可行的。编写界面化程序,形成了一个参数可设置的界面化的GEO航天器在轨燃料补给任务调度原型工具。
[Abstract]:With the rapid development of space technology, the goal of space activities is not only to complete the mission, but also to extend the on-orbit life of spacecraft as far as possible. At the same time, the development of deep space exploration is also limited by fuel. In addition, the on-orbit fuel recharge technology is becoming more and more mature, and the idea of space fuel station has also been put forward. The research of on-orbit fuel recharge task scheduling based on space fuel station is of great significance. In this paper, several GEO spacecraft are taken as in-orbit fuel recharge objects. The task scheduling and optimization problem of in-orbit fuel recharge based on space fuel station is studied. Firstly, the multi-cycle Lambert orbit transfer problem is solved based on Battin method. The relationship between the velocity increment and the transfer time of the orbit transfer is obtained, and the relationship between the two is optimized by adding the terminal glide, so that the time allocation scheme can be transformed into an integer programming problem. Then, the in-orbit fuel replenishment mission model based on space fuel station is studied. Taking the GEO spacecraft as an example, the variables and constraints in the in-orbit fuel replenishment mission are sorted out. Taking the approximate optimal service sequence and the approximate optimal time allocation scheme as the optimization objective, the on-orbit fuel supply task scheduling model of GEO spacecraft is constructed. Then, based on genetic algorithm, the scheduling algorithm of on-orbit fuel supply task for GEO spacecraft is studied. Finally, the task scheduling algorithm is numerically simulated on Matlab. The simulation results show that the proposed scheme is feasible. An interfacial GEO spacecraft on-orbit fuel replenishment task scheduling prototype tool with configurable parameters is developed.
【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V52

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