CAJ | 학술논문

上面级作为航天运输系统的重要组成部分，越来越受到各航天大国的重视，其发展的核心问题是提高运载火箭多任务适应能力，解决多次启动、长期在轨、自主飞行等问题。通过对国内外上面级发展脉络进行分析，研究其发展特点，总结其发展趋势，提出中国上面级发展的相关建议。
상면급작위항천운수계통적중요조성부분，월래월수도각항천대국적중시，기발전적핵심문제시제고운재화전다임무괄응능력，해결다차계동、장기재궤、자주비행등문제。통과대국내외상면급발전맥락진행분석，연구기발전특점，총결기발전추세，제출중국상면급발전적상관건의。
As an important part of aerospace transportation system, the upper stage has got more and more attention from aerospace powers. The core problems to develop upper stage are to improve the multitask adaptability of launch vehicle, and to realize multiple restart, long term on-orbit and self-determinative flight. The developmental history of domestic and foreign upper stages is analyzed, the developmental characteristics are investigated, and the development trend is summarized in the paper. Then advice of developing China’s upper stage is put forward.