运载火箭末级剩余推进剂排放技术

The Venting Technique of Residual Propellants of Launch Vehicle Upper Stage

完成了有效载荷发送任务之后的运载火箭末级是最具有威胁性的空间碎片源。在分析如何防止末级火箭在轨道上爆炸解体的技术途径后,本文重点就末级火箭贮箱中的剩余推进剂排放技术的各个方面进行了探讨。文中还阐述了我国对空间碎片问题的基本立场,并简要介绍了我国将对长征四号甲运载火箭末级采取的控制空间碎片生成的技术措施。

The upper stage of a launch vehicle accomplishing its mission becomes a serious source of space debris. After analysis of technical measures to preclude on-orbit fragmentation of the spent stage, the article lays emphasis on the discussion about the technique of expelling residual propellants in tank , elaborates on the basic position of China about the space debris issue,and gives a brief introduction to a technical measure about space debris mitigation which will be adopted with the upper stage of China's Long March-4A.