摘要
随着航天技术的不断发展,有效载荷对低温末级提出了长时间滑行的任务需求。由于低温推进剂沸点低、易蒸发、难以长期贮存,低温推进剂位置管理、热量管理以及供电问题成为长时间滑行必须解决的关键问题。梳理了长时间滑行的任务需求和面临的挑战,分析了长时间滑行低温推进剂位置管理、热量管理以及集成流体管理系统等关键技术,分别提出将我国低温末级滑行时间拓展至6 h及更长时间的发展建议。
With the continuous development of aerospace technology,the payload puts forward the task requirement of long-coast flight for the cryogenic upper stage.The long-term store of cryogenic propellant is difficult because of its low boil temperature and easy evaporation properties,so that the position management,the heat management of cryogenic propellant and the power supply have become the key issues that must be solved for long-coast flight.This paper reviews the task requirements and challenges of long-coast flight,analyzes the key technologies such as propellant position management,propellant heat management and integrated vehicle fluids of cryogenic propellant management for long-coast flight,and respectively puts forward the development suggestions for extending coasting time to 6 hours and longer of Chinese cryogenic upper stage.
作者
王亚军
刘辉
黄兵
朱平平
WANG Yajun;LIU Hui;HUANG Bing;ZHU Pingping(Academy of Aerospace Solid Propulsion Technology,Xi an 710025,China;Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China)
出处
《宇航总体技术》
2022年第3期1-9,20,共10页
Astronautical Systems Engineering Technology
关键词
长时间滑行
低温推进剂
推进剂管理
蒸发量控制
Long-coast flight
Cryogenic propellant
Propellant management
Boil-off control
