双线圈高速开关阀的水击特性验证

Verification of Water Hammer Characteristics of Double-Coil High-Speed On-Off Valve

高速开关阀是航天领域动力系统的关键元件,需要具备高频响和高可靠性。然而,高速开关阀的开关特性会使系统产生水击现象,降低系统的可靠性,尤其是在高速开关阀高频切换过程中会产生更多的水击压力波,致使系统中的水击变得更加复杂。因此,采用仿真和实验相结合的方法对不同频率下水击压力脉动的变化进行分析,最终通过对数据时域和频域的分析,发现了高速开关阀的水击压力脉动规律,研究结果可在航天动力系统中应用。

High-speed on-off valve is a key component of power system in aerospace field,which needs high frequency response and high reliability.However,the switching characteristics of the high-speed on-off valve will make the system produce water hammer phenomenon and reduce the reliability of the system.Especially in the high-frequency switching process of the high-speed on-off valve,more water hammer pressure waves will be generated,which makes the water hammer in the aviation system more complicated.Therefore,the change of water hammer Pressure pulsation at different frequencies is analysed by combining simulation and experiment.Finally,through the analysis of data time domain and frequency domain,the water hammer pressure pulsation.Law of high-speed on-off valves has been discovered,and the research results can be used in aerospace power system applications.