不同焊接速度下焊缝温度场的模拟分析

Simulation Analysis of Temperature Field of Welding Seam under Different Welding Speed

借助于ANSYS有限元软件的热-结构耦合功能,考虑焊接温度场对应力应变场的单项耦合作用,针对起重机主梁箱形结构腹板与翼板焊接处的角焊缝进行有限元分析,运用软件的生死单元技术,模拟焊接过程中焊接热源沿着焊缝不断移动的过程,并给出不同焊接速度下焊接温度场的变化规律。

With the help of the thermal structure coupling function of ANSYS finite element software, considering the welding temperature field coupling effect of the stress and strain field of the individual, for crane box girder type structure of web and flange plate welding of fillet weld for finite element analysis, using the element birth and death technology in software, simulation of welding in the process of welding heat source along the weld is constantly moving, and gives a different welding speed welding temperature field variation