摘要
喷管延伸段是液体火箭发动机的重要零部件,直接关系到发动机真空比冲性能的高低和其重量特性指标的优劣。近些年来,由于复合材料具有耐热、抗热震性能好、抗疲劳性能好、耐氧化腐蚀以及密度低等优点,复合材料在液体火箭发动机喷管延伸段上得到了越来越广泛的应用。仅在2018年下半年,国内就先后有高室压10kN复合材料发动机完成某导弹武器飞行和5000N复合材料喷管延伸段发动机完成远征三号上面级飞行。通过查阅国内外文献,系统总结了国内外液体火箭发动机用复合材料喷管延伸段的研究及应用现状,综述了复合材料喷管延伸段预制体的一维缠绕成型、三维编织成型以及三维针刺成型技术及其气相法和液相法复合致密化技术,分析了国内的主要差距并提出了发展建议。
The nozzle extension section is an important component of the liquid rocket engine,which directly relates to the specific impulse performance of engine in vacuum and its weight characteristics.In recent years,with the rapid development of composites,it has been more and more widely used in the nozzle extension section of liquid rocket engine due to their advantages of heat resistance,thermal shock resistance,fatigue resistance,anti-oxidation corrosion and low density,etc.Only in the second half of 2018,there were 10 kN composite engine with high chamber pressure to complete a missile weapon flight and 5 000 N composite nozzle extension engine to complete the upper stage flight of YZ-3.According to the related domestic and foreign literature,the research and application status of composites nozzle extension for liquid rocket engine are summarized systematically.The one-dimensional winding,three-dimensional braiding,three-dimensional needle-punching and its gas-phase and liquid-phase composite densification technologies are reviewed for the composite nozzle extension preform.In addition,the main gaps for China is analyzed and some suggestions are put forward for the further development.
作者
刘昌国
邱金莲
陈明亮
LIU Changguo;QIU Jinlian;CHEN Minliang(Shanghai Institute of Space Propulsion,Shanghai 201112,China;Shanghai Engineering Research Center of Space Engine,Shanghai 201112,China)
出处
《火箭推进》
CAS
2019年第4期1-8,共8页
Journal of Rocket Propulsion
关键词
火箭发动机
复合材料
喷管延伸段
成型技术
致密化技术
liquid rocket engine
composites
nozzle extension
molding technology
densification technology
