液氧甲烷重复使用运载器关键技术发展研究

Development of Key Technologies for Liquid Oxygen Methane Reusable Launch Vehicle

基于液氧甲烷发动机的重复使用运载器在重复使用和使用维护方面具有优良的性能,成本更低。世界各国正在加速开展相关研究及工程研制,典型代表包括火神运载火箭、朱雀二号运载火箭等。对基于液氧甲烷发动机的重复使用运载器的技术特点、面临的技术挑战进行分析,并基于此提出后续重点研究内容,包括重复使用总体设计与评估技术、上升再入返回着陆一体化制导导航与控制技术、大尺寸轻质结构与制造技术、重复使用液氧甲烷发动机技术、健康管理预测与重复使用运行维护技术、重复使用热防护技术等,为后续开展液氧甲烷重复使用运载器工程研制奠定基础。

The reusable launch vehicle based on liquid oxygen methane engine has excellent performance in reuse and maintenance,and is easier to achieve low cost.Countries around the world are accelerating relevant research and engineering development.Typical representatives include the Vulcan launch vehicle of the United States,and the ZhuQue-2 launch vehicle of LandSpace.The technical characteristics and technical challenges of the reusable launch vehicle based on liquid oxygen methane engine are analyzed.The following key research contents are proposed,including the overall design and evaluation of reuse,GNC technology for ascent and reentry and return landing,large-scale lightweight structure and manufacturing technology,reuse of LOX engine,health prediction management and reuse operation and maintenance technology,reuse thermal protection technology etc.It will lay a foundation for further development of liquid oxygen methane reusable launch vehicle.