Valve Simulation System Performance Evaluation Method

The simulation of valve's experiment system is a simulation system that make a experiment by computer to valve before it is produced. It can make a appraise to production's capability and repair the vice of design to insure the validity of according work procedure.The problem include :modeling, finite element analyze, capability estimate and database .The work is base on capability estimate. The finite element analyze result is comparely abstract mechanics result. From these results ,we can't directly make out the valve's capability. Capability estimate is a bridge between mechanics result and valve's capability, at last, give a direct capability estimate.The work analyze three capability with the software "Workbench".Seal is a important target of valve's capability. From the seal mechanism ,we can draw: the pressure on the seal plane is the gist of seal capability estimate .Base on the contact result of Workbench ,we can estimate seal capability by look for good interface with computer.The mechanics capability of the valve mainly consider a intensity and rigid capability . According to the type of the valve body material , make use of the different strength theories carries on the judgment ,the equivalence stress come out from the Workbench analytical result. Rigid problem mainly what to consider is the valve body to transform, in bar of big transforms of the valve body with the result that influence seals completely the contact of interface, the valve body transforms should control within the scope of certain. The intensity problem of the valve pole is closed related with the biggest moment. This text makes use of the Workbench contact analysis result to get the biggest friction moment at the open time.Form the motion track of the three eccentricities butterfly valve , mainly analyzed interference problem of the three eccentricities butterfly valve.