航空液压管路连接式单向阀不同结构形式泄露机理研究  

Research on leakage mechanism of different structural forms of aviation hydraulic pipeline connected check valve

作　　者：唐杰[1] 钟安凯 TANG Jie;ZHONG Ankai(Aeronautical Engineering Institute,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学航空工程学院,天津300300

出　　处：《重庆理工大学学报(自然科学)》2025年第1期148-154,共7页Journal of Chongqing University of Technology:Natural Science

基　　金：国家自然科学基金民航联合重点项目(U2233212);中国民航大学实验创新基金项目(2023YJSKC01019)。

摘　　要：在飞机液压系统中,为了保证回路的稳定性和工作性能的可靠性,单向阀作为不可或缺的液压元件起到了关键作用。而阀芯作为单向阀的核心部件,直接影响着阀门的性能和可靠性,尤其是泄漏量,对于单向阀的工作效率和流量特性影响更甚。为此,针对弹簧式单向阀的阀芯与阀体不同接触形式和锥孔角度进行了研究,建立了阀体三维模型和泄漏数学模型,在数学模型的基础上对阀体物理模型进行仿真对比,得到泄漏表现最优的结构形式。将仿真结果在流固耦合中进一步验证,得到了最佳的阀芯锥孔角度和阀芯端面接触形式。In the aircraft hydraulic system,the check valve is an indispensable hydraulic component crucial for ensuring circuit stability and reliable performance.The spool,as the central element of the check valve,is pivotal in determining the valve’s performance and reliability.One of its critical impacts is leakage,which significantly undermines the operational efficiency and flow characteristics of the check valve.We explore various contact configurations and cone hole angles concerning the spool and the body of spring-loaded check valves.To thoroughly analyze these factors,a three-dimensional model of the valve body is built along with a mathematical model focusing on leakage.Through simulations and comparisons based on the mathematical model,the optimal structural design for minimizing leakage is made.The results of these simulations are corroborated through fluid-solid coupling techniques.This comprehensive approach helps to determine the optimal spool cone angle and the most suitable spool end face contact form,thereby ensuring enhanced performance and reliability of the check valve in applications.

关 键 词：单向阀 流体仿真 正交试验法 流固耦合 

分 类 号：TH137.521[机械工程—机械制造及自动化]