太阳电池阵二级轻气炮超高速撞击特性研究  

Hypervelocity impact damage properties of solar arrays by using two-stage light gas gun

作　　者：郑建东[1,2] 牛锦超 钟红仙 龚自正[2] 曹燕[2] Zheng Jian-Dong;Niu Jin-Chao;Zhong Hong-Xian;Gong Zi-Zheng;Cao Yan(Institute of Telecommunication Satellite,China Academy of Space Technology,Beijing 100094,China;Beijing Institute of Spacecraft Environment Engineering,National Key Laboratory of Science and Technology on Reliability and Environment Engineering,Beijing 100094,China;School of Civil Engineering and Communication,North China University of Water Resources and Electric Power,Zhengzhou 450045,China)

机构地区：[1]中国空间技术研究院,通信卫星事业部机械工程研究室,北京100094 [2]北京卫星环境工程研究所,可靠性与环境工程技术国防科技重点试验室,北京100094 [3]华北水利水电大学土木与交通学院,郑州450045

出　　处：《物理学报》2019年第22期266-273,共8页Acta Physica Sinica

基　　金：国家重点基础研究发展计划(批准号:2010 CB731600);国家国防科工局空间碎片专项(批准号:KJSP06209)资助的课题~~

摘　　要：采用二级轻气炮对航天器太阳电池阵开展了超高速撞击地面模拟试验,研究了不同撞击位置、撞击速度、弹丸直径等工况下太阳电池阵的机械损伤特性.试验结果显示:地面模拟试验产生的穿孔区、玻璃盖片剥落区、裂纹扩展区等损伤形貌与在轨撞击产生的损伤形貌符合良好;穿孔直径和玻璃盖片剥落区直径与弹丸的直径和撞击速度相关.建立了撞击角为0°时太阳电池阵穿孔直径、玻璃盖片剥落区直径的损伤方程.本文的研究方法对我国航天器太阳电池阵超高速撞击损伤特征研究有借鉴意义,所建立的损伤方程对我国航天工程实践具有重要的工程应用价值.Using two-stage light gas gun,we study the hypervelocity impact characteristics of spacecraft key component,solar cell arrays.The damage morphologies in the ground simulation tests match well with those on-situ orbital impacts.The main characteristics of mechanical damage,including the central pit,cover glass shatter zone,and conchiodal spallation,are measured by using a microscope under 20 times magnification.To study the mechanical damage properties in solar arrays,we carry out 15 shots totally,under different impact locations,impact velocities,and particle diameters.Under the condition of impact angel of zero degree,the damage equation of perforation diameter of solar arrays and the damage equation of the diameter of shatter zone in cover glass are developed,respectively.The results show that the perforation diameter and the diameter of cover glass shatter zone are mainly related to the diameter of particle with 2/3 power,while related to the velocity of impact with 1/6 power.Compared with the damage equation in the literature,the damage equations in this article are very suitable for describing hypervelocity impact damage properties of solar arrays used in our country’s spacecraft.The results are of significance for our country’s aerospace engineering.

关 键 词：太阳电池阵 超高速撞击 损伤方程 空间碎片 

分 类 号：TM9[电气工程—电力电子与电力传动]