摘要
流量调节阀是液体火箭发动机推力调节的关键部件,根据某型氢氧发动机流量调节阀的结构与工作原理,建立调节阀的动力学模型,并利用AMESim软件建立了流量调节阀的动态仿真模型。基于流量调节阀仿真模型进行了如下仿真工作:计算不同工况下调节阀的流量特性、验证调节阀的稳流特性、仿真分析调节阀动态特性、分析结构参数对调节阀动态特性的影响。仿真结果揭示了流量调节阀的流量与动态特性,为调节阀的改进优化提供了方向。
The flow regulator is the key component to realize the thrust regulation of liquid propellant rocket engine.The dynamic model of the flow regulator is established according to the structure and working principle of the flow regulator of a hydrogen-oxygen engine,and the simulation calculation model of the flow regulator is established by using AMESim software.The simulation work is carried out by using the simulation model of the flow regulator:calculating the flow characteristics of the regulator under different working conditions,verifying the steady-flow characteristics of the regulator,simulating and analyzing the dynamic characteristics of the regulator,and analyzing the influence of the structural parameters on the dynamic characteristics of the regulator.The simulation results reveal the flow and dynamic characteristics of the flow regulator,and provide a direction for the improvement and optimization of the flow regulator.
作者
冯岳鹏
郑孟伟
薛薇
刘畅
FENG Yuepeng;ZHENG Mengwei;XUE Wei;LIU Chang(Beijing Aerospace Propulsion Institute,Beijing,100076)
