某型气动单向阀颤振特性研究

Research on Flutter Feature for a Type Pneumatic Check Valve

针对某型号气动单向阀打开过程中持续颤振现象,该文采用AMESim分析软件建立单向阀数值计算模型,对不同入口流量条件和气体介质条件下的工作特性进行仿真计算,得出此种类型单向阀产品的工作特性,当单向阀入口压力在0.8~1.5MPa阀芯振幅最大,压力高于3MPa阀门处于开度稳定状态,同时,开展单向阀特性试验验证,试验与数值计算结果较好吻合,为单向阀产品特性认识和正确使用提供重要指导。

For investigation a certain type of pneumatic check valve continuous flutter phenomenon in the open process,this paper adoptsthe AMESim analysis software check valve numerical calculation model is set under different inlet flow conditions and gas medium conditionof the simulation calculation.The work characteristics of this type check valve were obtained,the amplitude of check valve up to a maximumwhen the entrance pressure between0.8MPa^1.5MPa,and the spool at stable state if the entrance pressure exceed3MPa.Meanwhile,.through developing the aerodynamic characteristics of the check valve test,and coincide with the numerical simulation is better for thecheck valve features to recognize and correct use of provide strong guidance.