华中科技大学学报（自然科学版）2024，Vol.52Issue(10)：34-39,53,7.DOI:10.13245/j.hust.240229
基础振动下插装式单向阀的动态响应特性研究
Study on dynamic response characteristics of cartridge check valve under foundation vibration
摘要
Abstract
To clarify the effect of strong vibration environment on the working performance of cartridge check valve for a special vehicle,the mathematical model,and AMESim simulation model of the cartridge check valve under foundation vibration were established.The dynamic response characteristics of the check valve with different vibration parameters and valve structure parameters were analysed when the maximum acceleration of foundation vibration was 4g.The validity of the model was verified by experiment.Results show that when forward flow is passed and the base vibration frequency is greater than 43 Hz,the amplitude of flow fluctuation of the check valve is less than 10%of the full working condition,and there is no failure of flow fluctuation,and the relative deviation of the time-averaged flow rate relative to no vibration is less than 25%.When the flow rate is small,the larger the spring stiffness,the smaller the mass of the spool,and the smaller the flow rate fluctuation.When the flow rate is large,the larger the diameter of the spring cavity damping orifice,the smaller the flow rate fluctuation.While the check valve is reverse cutoff,foundation vibration can make the valve orifice open,and the minimum reverse leakage flow is 3.3 mL/min,and the cutoff function is disabled.Under vibration environment,the flow rate fluctuation of cartridge check valve can be reduced by appropriately increasing the spring stiffness,reducing the mass of the spool and increasing the diameter of the spring cavity damping orifice.关键词
插装式单向阀/基础振动/动态响应特性/流量波动/失效Key words
cartridge check valve/foundation vibration/dynamic response characteristics/flow rate fluctuation/failure分类
机械制造引用本文复制引用
张建军,冀宏,简洪超,刘新强..基础振动下插装式单向阀的动态响应特性研究[J].华中科技大学学报（自然科学版）,2024,52(10):34-39,53,7.基金项目
国家自然科学基金资助项目(52005234) （52005234）
甘肃省优秀研究生"创新之星"资助项目(2022CXZX-432). （2022CXZX-432）
