焊接温度场计算方法及软件程序设计

Numerical simulation method of welding temperature field and its software program design

对焊接温度场的计算模拟进行了研究,开发了一个具有友好的人机交互界面以及良好的计算能力的应用软件程序。通过对焊接温度场有限元模型的求解研究,自行编制Fortran程序实现了不同接头形式的模型建立以及节点温度的求解。采用C++/MFC实现了具有菜单区、对话区和图形区的操作界面的搭建,并通过动态链接库(DLL)的方法实现了两种程序的混合编程。结果表明,该系统软件具有智能化和流程化的有限元建模功能,用户在操作界面根据提示输入构件相关参数即可完成焊接接头温度场模型的建立及计算,并可以根据需求查看温度结果。对比该系统软件和商业有限元软件的计算结果,验证了程序的可行性。

In this paper,the numerical simulationmethod of welding temperature field was studied.An application software program with friendly interactive interface and good calculation ability was developed.Based on the research about the solving method of the finite element model of the welding temperature field,the seld-designed Fortran program was developed to realize the modeling and solving of different types of joints.C++/MFC was used to build the operation interface with menu area,dialog area and graphic area,and the method of dynamic link library(DLL)was used to realize the mixed programming of the two programs.The results showed that the software had the ability to build finite element model intelligently.The users could build the temperature field model by entering the relevant parameters of the welded joint according to the prompts on the interface.The calculation results of this program were compared with those of one commercial finite element software,which verified the feasibility of this program.