天宫二号组合体与伴星有效迎风面积的一种分析计算模型  

An Analysis Model for Effective Windward Area of TG-2 Complex and Accompanying Satellite

作　　者：韩意 陈明[1] 张宇[1] 孔静[1] 段成林[1] HAN Yi;CHEN Ming;ZHANG Yu;KONG Jing;DUAN Chenglin(Beijing Aerospace Control Center,Beijing 100094,China)

机构地区：[1]北京航天飞行控制中心

出　　处：《载人航天》2020年第1期19-25,共7页Manned Spaceflight

基　　金：国家自然科学基金(11173005)

摘　　要：针对空间实验室任务阶段大型复杂结构航天器精密定轨中的大气阻力建模与迎风面积计算问题,分析了大气阻力模型的主要不确定性因素,采用了一种基于OpenGL和目标3ds模型文件的迎风面积计算方法,给出了航天器在正飞与连续偏航2种状态下的迎风面积计算方式,计算了天宫二号、神舟十一号组合体与伴星的迎风面积,分别求解得到两目标在相同轨道高度飞行24天时间里的大气阻力系数约为2.0,二者之差约0.01~0.07。To solve the problem of atmospheric drag modeling and windward area calculation in the precise orbit determination of large and complex spacecraft in the space laboratory mission stage,the uncertain impact factors of atmospheric drag model were analyzed and the windward area calculation method was put forward based on OpenGL and spacecraft 3ds model file.Then the windward area calculation modes for normal flying and yawing were discussed and the windward area parameters of TG-2&SZ-11 complex and the accompanying satellite were calculated.The atmospheric drag parameters of the two targets at the same orbit height in 24 days were both about 2.0,and the differences of the parameters were about 0.01~0.07.

关 键 词：有效迎风面积 大气阻力系数 轨道确定 组合体 伴星 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]