摘要
某型氢氧发动机先导式电磁阀进行吸合电流检查试验时,电流曲线出现多次异常吸合现象。针对此现象,结合电磁阀结构特点,采用AMESim仿真软件研究了入口压力、电磁阀吸合时间、衔铁处顶杆孔径、流体介质、产品安装角度、排气孔等效面积及气垫腔容积对衔铁运动的影响。结果表明:顶杆孔径减小、测试产品安装反向、气垫腔容积增大容易引起衔铁的振动,进而引起电磁阀电流曲线的抖动;将仿真分析结果与试验实测曲线进行对比,结合试验时产品测试情况,顶杆小孔孔径减小是引起电磁阀异常吸合现象的原因,并提出了对电磁阀结构的改进优化方案,对今后电磁阀结构设计给予一定的启示。
When pilot solenoid valve of hydrogen and oxygen engine was tested for suction characteristics,the current curve appeared many abnormal suction waves.In order to solve this problem,through multi-aspects study the effect on armature movement,including inlet pressure,solenoid valve suction time,armature pin-lift aperture,fluid medium,product installation angle,equivalent area of vent and and air cushion volume.The vibration of armature is easily caused by the decrease of pin-lift aperture,reverse installation and air cushion cavity volume.The result of simulation analysis are compared with test measured curve,combined with the test situation,the reason for abnormal suction phenomenon of solenoid valve is reduced by pin-lift aperture.Through the simulation results,structure of solenoid valve is improved and optimized,which gives some enlightenment for the future design of solenoid valve structure.
作者
杜兰君
高柏桦
DU Lan-jun;GAO Bai-hua(Beijing Aerospace Propulsion Institute,Beijing 100076,China)
出处
《液压气动与密封》
2024年第2期78-85,共8页
Hydraulics Pneumatics & Seals
关键词
先导电磁阀
振动
吸合特性
仿真分析
AMESIM
pilot solenoid valve
vibration
suction characteristics
simulation analysis
AMESim
