基于web技术的有限元模型和成果可视化方法研究  

Research on Web-based Technology for Finite Element Modelling and Result Visualisation Methods

作　　者：王宇阳 牛志伟[1] 卢建华 齐慧君[1] 晁阳 WANG Yuyang;NIU Zhiwei;LU Jianhua;QI Huijun;CHAO Yang(College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210024,Jiangsu,China;Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,Hubei,China;National Dam Safety Research Center,Wuhan 430010,Hubei,China)

机构地区：[1]河海大学水利水电学院,江苏南京210024 [2]长江勘测规划设计研究有限责任公司,湖北武汉430010 [3]国家大坝安全工程技术研究中心,湖北武汉430010

出　　处：《水力发电》2024年第5期59-64,92,共7页Water Power

基　　金：江苏省水利科技项目(2022080);国家自然科学基金青年基金项目(52009035)。

摘　　要：在水利水电工程设计及运行阶段,经常使用有限元分析方法进行结构受力变形分析。以往多数情况下都是高校或科研单位将有限元分析结果以固定图表的成果形式以研究报告的方式呈现给设计或运管单位,倘若边界条件或材料参数发生变化,设计或运管单位无法实时了解新的计算成果。随着Web技术的发展,使得将有限元模型和分析成果以可视化、交互式的方式向设计及运管人员进行实时呈现成为可能。借用基于WebGL技术封闭的Three.JS框架,实现了拱坝三维有限元网格模型及分析成果在用户浏览器上的可视化呈现,能够让用户通过交互式方式对有限元模型及分析成果进行动态浏览和查看,方便用户全面了解计算成果。该方法为数字孪生水利工程建设提供了计算分析成果在线查询技术,具有广泛的应用价值。In the design and operation stages of water conservancy and hydropower projects,finite element analysis(FEA)is often used to analyze the structural forces and deformations.In the past,the finite element analysis results are mostly presented to the design or operation management units by universities or research institutes in the form of research reports with fixed charts and graphs,which makes it impossible for the design or operation management units to understand the new calculation results in real time in case of changes in the boundary conditions or material parameters.With the development of Web technology,it is possible to present the finite element model and analysis results to designers and operation personnel in a visual and interactive way in real time.By using the Three.js framework based on the WebGL technology closure,the visual presentation of the three-dimensional finite element mesh model of arch dam and the analysis results in the user's browser is achieved,which allows the user to interactively browse the finite element model and the analysis results of the dynamic browsing and viewing,so as to facilitate the user to understand the results of the calculations in a comprehensive manner.This method provides online query technology of calculation and analysis results for the construction of digital twin water conservancy project,which has wider application.

关 键 词：WEB技术 有限元模型 有限元成果轻量化 数字孪生 水利水电工程 

分 类 号：TV512[水利工程—水利水电工程] X22[环境科学与工程—环境科学]