CAJ | 학술논문

针对厘米/毫米级空间碎片对卫星的撞击风险评估，在对卫星部件的失效模式及影响分析（FMEA）的基础上，结合射线跟踪法和失效树分析法建立一种卫星目标的易损性分析方法，计算卫星在空间碎片撞击下导致不同损伤等级的系统失效概率PK/H。详细介绍了该易损性分析方法的总体思路和各项关键技术，并给出了应用实例。该方法可推广应用于载人航天器上，对于航天器的撞击风险评估和防护结构优化设计有重要意义。
침대전미/호미급공간쇄편대위성적당격풍험평고，재대위성부건적실효모식급영향분석（FMEA）적기출상，결합사선근종법화실효수분석법건립일충위성목표적역손성분석방법，계산위성재공간쇄편당격하도치불동손상등급적계통실효개솔PK/H。상세개소료해역손성분석방법적총체사로화각항관건기술，병급출료응용실례。해방법가추엄응용우재인항천기상，대우항천기적당격풍험평고화방호결구우화설계유중요의의。
For the sake of risk assessments of centimeter/millimeter-level space debris impac-ting satellites,a vulnerability analysis method has been developed to estimate the system failure probability PK/H of satellite with different damage degree.The proposed method is constructed on the basis of Failure Mode and Effect Analysis (FMEA ),combined with Shot-line method and failure tree method.In this paper,the main idea and each key technique of this vulnerability anal-ysis method in detail were introduced and an application example was presented in the end.This method can be applied for manned space missions also,which is significant for risk assessments of aircrafts and shielding structure design optimization.