Research And Application Of Engineering Analysis Automation For Digital Integrated Design Platform Of Valves

Valves,as the most important pipeline components for industrial production and transportation,are called "industrial vessels" and are widely used in various complex and harsh environments.Therefore,the calculation of valve structural strength and the evaluation of flow status are extremely important.With the rapid development of computer technology,many finite element method(FEM)is also applied to engineering calculation.More and more engineers choose to use FEM analysis software to analyze the structure and fluid of the valve to optimize the design of the valve.However,the general FEM software has higher requirements for the technicians,requiring deeper theoretical knowledge that many technicians does not have.Because of the complexity of valve structure and the difficulty of engineering analysis,it is very important to develop a digital integrated design platform for valves with simple interface and convenient operation.According to the requirements of the valve manufacturing Co.,Ltd.in Wenzhou,Zhejiang Province,the project team researched and compiled the "valve digital integrated design platform" and delivered it to the enterprise for use.The platform integrates parametric design and engineering analysis automation,and designs and analyzes valves with simple interface,which greatly improves the efficiency of valve design.This paper mainly studies the realization of engineering analysis automation of valve digital integrated design platform.The research content is as follows:(1)Researched the valve design and engineering analysis process,standardized and solidified the enterprise design and engineering analysis process in the form of software,realized the automation of the finite element structure analysis and fluid analysis of 8 types of valves,and completed the valve design Integration into engineering analysis.Only through the necessary parameter input,the system can automatically output the relevant engineering analysis results,reducing the tedious mouse interactive operation,and significantly improving the design efficiency;(2)In order to realize the automation of valve fluid analysis,the dissertation innovatively proposes the "parameter template for fluid analysis" technology.According to the requirements of relevant standards for valve fluid analysis,before the valve is parameterized,an assembly template is created for each valve,pipes and caps are added to the template,opening configuration,boundary conditions,etc.,and the template is always attached to the newly created valves,and the template isupdated as the valves are updated.During valve fluid analysis,the program can directly activate the settings in the template,which successfully solves the automation of valve fluid analysis;(3)Researched the secondary development method of SolidWorks,combined with the VBA language of Excel software,compiled the valve finite element structure analysis subsystem and valve fluid analysis subsystem,and integrated the two subsystems into the valve digital integrated design platform,successfully solved Technical problems such as simplified 3D model,automatic determination of grid independence,automatic transfer of analysis parameters,post-processing and visualization of output results,the developed system is applied by enterprises in actual projects;(4)Using the system developed in this dissertation,we studied the theoretical problems encountered in the production process of two companies,"Flow Characteristics of Angle Flash Control Valve" and "Plug Control Valve Wall Roughness on Flow Coefficient".Relevant and valuable conclusions are drawn,which provide meaningful guidance for the production of enterprises.At the same time,through the use of this system,proved the convenience and practicability of its operation.