摘要
针对模块航天器在轨拼接曲面优化、曲率极值问题,提出了一种基于模块间隙约束的“球冠-平面”辅助映射法,该方法不仅可以规划模块航天器如何构成目标曲面,还可以获得该曲面的极值。该方法以正六棱柱模块航天器为单位模块,将模块按由“球冠-平面”映射的圈层排列张成目标球面,构建了拼接曲面的数学模型。鉴于工程上对机构调整有限导致的相邻模块间隙限制问题,在算法中引入了碰撞检测(DC)约束参数;通过遗传算法寻优,获得目标曲面布局的最优解。最后仿真表明:该算法可以有效获得曲面布局的最优解。
Aiming at the problems of splicing surface optimization and curvature extrema for in-orbit module spacecrafts,a“sphere-plane”assisted mapping method based on the module gap constraint is proposed.The method can not only plan how to construct the target surface of a module spacecraft,but also obtain the surface extrema.In the method,a regular hexagonal prism module is taken as the unit module,and is arranged to span the target sphere according to the circle layer mapped by“sphere-plane”.Besides,the mathematical model of splicing surface is constructed.In view of the gap limitation of the adjacent modules caused by the limited adjustment of docking mechanisms in engineering,a collision detection constraint parameter is introduced into the algorithm.The optimal solution for the target surface layout is obtained by the genetic algorithm.The simulation results show that the algorithm can effectively obtain the optimal solution of the surface layout.
作者
付瑶
康国华
周绍辉
武俊峰
华寅淼
吴佳奇
胡苗苗
FU Yao;KANG Guohua;ZHOU Shaohui;WU Junfeng;HUA Yinmiao;WU Jiaqi;HU Miaomiao(College of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 211101,Jiangsu,China;Shanghai Space Technology Company Limited,Shanghai 201109,China)
出处
《上海航天（中英文）》
CSCD
2023年第2期23-31,共9页
Aerospace Shanghai（Chinese&English）
基金
科工局稳定支持资助项目(HTKJ2019KL502002)
江苏省双创人才资助项目(JSSCBS20210181)
武汉光电国家研究中心开放资助基金(2019WNLOKF011)。
关键词
模块航天器
拼接重构
组合体航天器
参数寻优
碰撞检测
modular spacecraft
stitching reconstruction
composite spacecraft
parameter optimization
collision detection
