Survivability assessment of spacecraft impacted by orbit debris  

作　　者：Di-qi Hu Bao-jun Pang Run-qiang Chi Zhang-chi Song Hao Wu 

机构地区：[1]Hypervelocity Impact Research Center,Harbin Institute of Technology,150080,Harbin,China [2]Beijing Institute of Aerospace Automatic Control,100854,Beijing,China [3]Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,130033,Changchun,China

出　　处：《Defence Technology（防务技术）》2021年第3期961-970,共10页Defence Technology

摘　　要：To help optimize the spacecraft design and reduce the risk of spacecraft mission failure, a new approach to assess the survivability of spacecraft in orbit is presented here, including the following three steps: 1)Sensitivity Analysis of spacecraft. A new sensitivity analysis method, a ray method based on virtual outer wall, is presented here. Using rays to simulate the debris cloud can effectively address the component shadowing issues. 2) Component Vulnerability analysis of spacecraft. A function "Component functional reduction degree-Component physical damage degree" is provided here to clearly describe the component functional reduction. 3) System-level Survivability Assessment of spacecraft. A new method based on expert knowledge reasoning, instead of traditional artificial failure tree method, is presented here to greatly improve the efficiency and accuracy of calculation.

关 键 词：SURVIVABILITY Hypervelocity impact Orbit debris Ray method 

分 类 号：V528[航空宇航科学与技术—人机与环境工程] V445.1