液体火箭注气式蓄压器工作过程仿真及控制规律研究  

Research on Gas-filled Accumulator System Simulation and Control Law of Liquid Launch Vehicle

作　　者：张青松 范瑞祥[2] 张兵[2] 胡久辉 Zhang Qing-song;Fan Rui-xiang;Zhang Bing;Hu Jiu-hui(Beijing Institute of Astronautical Systems Engineering,Beijing,100076;China Academy of Launch Vehicle Technology,Beijing,100076)

机构地区：[1]北京宇航系统工程研究所,北京100076 [2]中国运载火箭技术研究院,北京100076

出　　处：《导弹与航天运载技术（中英文）》2022年第6期74-78,共5页Missiles and Space Vehicles

摘　　要：注气式蓄压器是下一代运载火箭POGO抑制技术的重点发展方向。基于实际物理过程建立了描述注气式蓄压器内部压力、温度以及气腔容积变化规律的状态变量模型。针对气体外排的注气式蓄压器系统,开展不同入口压力条件下的工作过程仿真分析和充放气控制参数研究,获得了定容积注气式蓄压器的控制规律和参数优化设计方法,为注气式蓄压器的系统参数确定奠定理论基础。Gas-filled accumulator is the key development direction of pogo suppression technology for the next generation launch vehicle.Physics-based state variable model of gas-filled accumulator is presented,which can be used to simulate the variation of pressure,temperature and gas volume of such accumulator.Then,the control parameters and working process are simulated under different pressure condition in pipeline for an accumulator system with vent-pipe outside.Through this research,the control law and approach of parameter optimization design are obtained for a gas-filled accumulator with constant volume,which provide a theoretical foundation for the determination of system parameters of gas-filled accumulator.

关 键 词：注气式蓄压器 状态变量模型 仿真分析 控制规律 

分 类 号：V421.1[航空宇航科学与技术—飞行器设计]