基于混合编程的桥梁振动有限元系统开发与应用  

Development and application of finite element system for bridge vibration based on mixed programming

作　　者：刘鹏 LIU Peng(College of Railway Engineering,Hunan Technical College of Railway High-speed,Hengyang 421002,Hunan,China)

机构地区：[1]湖南高速铁路职业技术学院铁道工程学院,湖南衡阳421002

出　　处：《智能计算机与应用》2024年第9期165-169,共5页Intelligent Computer and Applications

基　　金：湖南省教育厅科学研究优秀青年项目(23B0951)。

摘　　要：工程上广泛应用的变截面连续梁桥在移动车辆作用下的振动方程为变系数偏微分方程,无法得到解析解,数值方法中的有限元法成为一种行之有效的求解方法。有限元计算程序常用Fotran语言编制,在界面设计、图像处理等方面较弱,本文基于混合编程技术,利用Visual Basic语言设计开发了一套桥梁振动有限元计算程序系统,系统直接调用Fortran语言程序的可执行文件进行数值计算。工程实例应用表明该系统具有较好人机交互功能,操作简单方便,提高了工作效率,实现了数值计算的可视化。The vibration equation of variable cross-section continuous beam bridges widely used in engineering under the action of moving vehicles is a variable coefficient partial differential equation,which cannot obtain analytical solutions.The finite element method in numerical methods has become an effective solution method.Finite element calculation programs are commonly written in Fortran language,which is weak in interface design,image processing,and other aspects.Based on mixed programming technology,this paper designs and develops a bridge vibration finite element calculation program system using Visual Basic language.The system directly calls the executable file of Fortran language program for numerical calculation.The application of engineering examples shows that the system has good human-computer interaction functions,simple and convenient operation,improved work efficiency,and achieved visualization of numerical calculations.

关 键 词：混合编程 桥梁振动 有限元 可执行文件 可视化 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]