摘要
回顾长征八号系列运载火箭的发展,其研制定位填补中国太阳同步轨道3 t至4.5 t运载能力空白,并衍生出对3 t以下运载能力覆盖的无助推器构型,从而构成中国新一代主力中型火箭。在此基础上开展了长征八号改进型火箭的研制工作,进一步提升运载能力和缩短发射周期。文中介绍了长征八号基本型所突破的关键技术,以及探讨了改进型研制中在氢箱闭式自生增压、3.35 m直径PMI夹层氢氧共底贮箱设计等关键技术上的创新;并结合文昌商业发射工位的建设,对未来长征八号系列运载火箭的发展进行了展望。
The development of the Long March 8(LM-8)series of launch vehicles is reviewed,which is designed to fill the gap of the payload capability of 3 to 4.5 tons to the sun-synchronous orbits(SSO),and to derive the no-side-booster configuration covering the payload capability of less than 3 tons,thus taking the main role of the madium-lift launchers in the launch market to constitute China’s next-generation of launch vehicles.On this basis,research and development of the LM-8 variants is being carried out to further improve the performance and shorten the launch period.The key technologies of the LM-8 with fundamental configurations are introduced,and the innovations of the upgraded version being developed are discussed,including the closed-loop self-pressurization for the hydrogen tank,the hydrogen and oxygen common bottom tank with a diameter of 3.35 meter and PMI sandwiches,etc.In line with the construction of the Wenchang commercial launch site,the future development of Long March 8 series is prospected.
作者
宋征宇
刘立东
陈晓飞
徐珊姝
吴义田
SONG Zhengyu;LIU Lidong;CHEN Xiaofei;XU Shanshu;WU Yitian(China Academy of Launch Vehicle Technology,Beijing 100076,China;Beijing Institute of Aerospace Systems Engineering,Beijing 100076,China)
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2023年第4期476-485,共10页
Journal of Astronautics
关键词
长征八号
中型火箭
关键技术
改进研制
Long March 8
Medium-lift launcher
Key technologies
Upgrading.
