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載人航天器出艙活動氧氣分壓控制研究（英文）

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

  • 摘要: 載人航天器出艙活動期間氧氣分壓控制是保證航天員安全和完成出艙任務(wù)的重要因素。文章通過對出艙過程中引起氧氣分壓變化的因素分析，進行了出艙活動低壓情況下的氧氣分壓安全限的試驗驗證研究，建立了出艙活動氧氣分壓變化趨勢仿真模型，并在此基礎(chǔ)上確定了出艙活動階段艙壓和氧氣分壓的調(diào)控方案。

     

    Abstract: 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.

     

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