系绳辅助的行星际轨道捕获研究  

Research on Tether Assisted Interplanetary Orbital Capture

作　　者：刘彬彬[1,2] 黄攀峰[1,2] 孟中杰[1,2] 

机构地区：[1]西北工业大学航天学院智能机器人研究中心,西安710072 [2]航天飞行动力学技术重点实验室,西安710072

出　　处：《中国空间科学技术》2014年第6期15-23,共9页Chinese Space Science and Technology

基　　金：国家自然科学基金(11272256;61005062)资助项目

摘　　要：针对深空探测中应用动量交换系绳辅助进行行星际轨道捕获时的系绳控制问题,首先对运行在目标行星双曲线飞越轨道上的探测器系统进行动力学建模,给出了一致性轨道捕获条件和系绳最佳切断点,并进行了动力学特性分析。考虑到子探测器捕获后的变轨需求及系绳收放速率的限制,提出了新的最优控制方法,并应用模拟退火算法进行了数值求解。仿真结果表明,系绳切断时指向恰当,子探测器距离目标行星最近,将有利于后续变轨;系绳最大收放速率约为30m/s,切实可行。Tether control of the momentum-exchange tether assisted interplanetary orbital capture in deep space exploration was studied. Firstly, the dynamic model of a detector system in a hyperbolic flying orbit was established. Secondly , the consistent condition of orbital capture and the optimum tether cut-off point were derived to analyze the dynamic characteristics. Finally, considering the sub-detector＇s post-capture orbit maneuver requirements and limitation of the tether deployment/retrieval velocity, a new optimal control problem was proposed and numerically solved by the simulated annealing algorithm. Simulation results show that the tether orientation is appropriate at the cut-off point and will be beneficial for the following orbit maneuver, and the maximum tether deployment/retrieval velocity is about 30m/s.

关 键 词：深空探测 动量交换系绳 轨道捕获 捕获条件 最优控制 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]