Preliminary survivability analysis of manned spacecraft following orbital debris penetration  

作　　者：ZHANG Yong HAN ZengYao LI Ming ZHENG ShiGui 

机构地区：[1]China Academy of Space Technology,Beijing 10094,China

出　　处：《Science China(Technological Sciences)》2009年第5期1455-1458,共4页中国科学（技术科学英文版）

摘　　要：Meteoroid and orbital debris(M/OD) may cause severe damages or even catastrophic failures for long-term manned spacecrafts in orbit due to the hypervelocity impact(HVI) destruction.It is essential to quantitatively assess the M/OD risk of manned spacecraft.In this paper,the catastrophic failure as-sessment function is successfully integrated into the Meteoroid & Orbital Debris Assessment and Op-timization System Tools(MODAOST),which is the M/OD risk assessment system developed by China Academy of Space Technology.The survivability assessment for the US Lab by MODAOST was con-sistent with that of the Manned Spacecraft Crew Survivability computer code(MSCSurv).Meanwhile,the simulation process showed that this function was more effective than MSCSurv for the application of the standard methodology of M/OD risk assessment instead of the Monte Carlo model.This function expands the ability of MODAOST in predicting the survivability of the typical catastrophic failure modes such as crew hypoxia and the critical cracking.Meteoroid and orbital debris (M/OD) may cause severe damages or even catastrophic failures for long-term manned spacecrafts in orbit due to the hypervelocity impact (HVI) destruction. It is essential to quantitatively assess the M/OD risk of manned spacecraft. In this paper, the catastrophic failure assessment function is successfully integrated into the Meteoroid & Orbital Debris Assessment and Optimization System Tools (MODAOST), which is the M/OD risk assessment system developed by China Academy of Space Technology. The survivability assessment for the US Lab by MODAOST was consistent with that of the Manned Spacecraft Crew Survivability computer code (MSCSurv). Meanwhile, the simulation process showed that this function was more effective than MSCSurv for the application of the standard methodology of M/OD risk assessment instead of the Monte Carlo model. This function expands the ability of MODAOST in predicting the survivability of the typical catastrophic failure modes such as crew hypoxia and the critical cracking.

关 键 词：Meteoroid/Orbital DEBRIS MODAOST MANNED spacecraft CATASTROPHIC failure modes risk assessment 

分 类 号：V412.41[航空宇航科学与技术—航空宇航推进理论与工程]