Research On The Stability Of Check Valve S Pool Considering Fluid-structure Interaction

The check valve is a valve with a circular disc as the o Pening and closing Part,which does not require manual o Peration or other automatic switching devices,and only relies on the interaction between the valve body itself and the fluid medium to close the backflow..The check valve is a one-way valve,also known as a check valve or an isolation valve.It is mainly suitable for cleaning media but not for media with solid Particles.However,for many years,the Problem of the s Pool vibrating during the o Pening and closing Process caused by the insufficient stability of the check valve s Pool is not uncommon.Therefore,this article will start with the stability and carry out the o Ptimal design.The main research contents are as follows:(1)This Pa Per first ex Plains the subject background and research significance of the check valve,determines the research object,and Points out that the Pur Pose of o Ptimizing the stability should be achieved through the method of structural design of the check valve.The method of solid cou Pling is used to study the stability o Ptimization.(2)Introduce several design methods of check valve,select Nystrom method and elli Pse cluster method and select three structural Parameters that have a greater im Pact on stability,res Pectively The structural Parameters are designed by Latin square test,and 25 grou Ps of different structural Parameter combinations are obtained,and three-dimensional models are made by using three-dimensional drawing software.The dynamic numerical simulations were carried out under different o Pening degrees.(3)The stability of the check valve is numerically defined,the absolute value of the s Peed difference of the full o Pening is used as the Primary determinant to measure the stability of the check valve,and the stability of 50 grou Ps of models is obtained,and the stability of each grou P of models is obtained.By analyzing and com Paring the high and low stability,the combination of structural Parameters with higher stability after the ex Perimental design was obtained,and the first o Ptimization of the stability was com Pleted.(4)The surrogate model is constructed by using Kriging inter Polation method and Newton inter Polation method res Pectively,and then the quantum GA algorithm,PSO algorithm and GWO algorithm are res Pectively used to com Pare and o Ptimize the surrogate model with intelligent algorithms,and the structure of the model with high stability after intelligent o Ptimization is obtained.Parameter combination to com Plete the re-o Ptimization of stability.(5)Carry out numerical simulation verification,res Pectively carry out static numerical simulation simulation on the initial model,the o Ptimal model for ex Perimental design and the o Ptimal model for intelligent o Ptimization,and com Pare the Pressure contour,flow velocity contour and deformation contour of the three models under the full o Pening,and analyze the ratio.Com Plete the verification of the effect of stability o Ptimization.