载人航天器出舱活动氧气分压控制研究(英文)  

Oxygen concentration control in extra-vehicular activity (EVA) of manned spacecraft

作　　者：俞进[1] 

机构地区：[1]中国空间技术研究院载人航天总体部,北京100094

出　　处：《航天器环境工程》2012年第4期441-444,共4页Spacecraft Environment Engineering

摘　　要：载人航天器出舱活动期间氧气分压控制是保证航天员安全和完成出舱任务的重要因素。文章通过对出舱过程中引起氧气分压变化的因素分析,进行了出舱活动低压情况下的氧气分压安全限的试验验证研究,建立了出舱活动氧气分压变化趋势仿真模型,并在此基础上确定了出舱活动阶段舱压和氧气分压的调控方案。The oxygen concentration control in the extra-vehicular activity is important for the safety of astronauts and the success of the extra-vehicular mission.This paper analyzes the influencing factors of the oxygen concentration,and the proposes verification test methods on the oxygen concentration limits at a low pressure.A model is built to simulate the variation of the oxygen concentration,and the partial pressure of the oxygen and the module pressure control scheme during the extra-vehicular activity are designed.

关 键 词：载人航天器 出舱活动 氧气分压 控制 可燃性试验 飞行安全 

分 类 号：V444.31[航空宇航科学与技术—飞行器设计] V528