| TIG焊接电弧与熔池统一模型有限元分析 |
| |
| 引用本文： | 芦凤桂,唐新华,李少青,姚舜,楼松年. TIG焊接电弧与熔池统一模型有限元分析[J]. 机械工程材料, 2006, 30(3): 31-34 |
| |
| 作者姓名： | 芦凤桂 唐新华 李少青 姚舜 楼松年 |
| |
| 作者单位： | 上海交通大学焊接工程研究所,上海,200030;上海交通大学焊接工程研究所,上海,200030;上海交通大学焊接工程研究所,上海,200030;上海交通大学焊接工程研究所,上海,200030;上海交通大学焊接工程研究所,上海,200030 |
| |
| 摘 要： | 根据磁流体动力学理论以及焊接的实际情况，建立了三维TIG焊接电弧与熔池的统一数学模型，避免了对电弧以及熔池界面条件的假定，使得对焊接电弧与熔池行为的分析与实际情况更近了一步。运用该数学模型对TIG焊接电弧和熔池的流场和热场进行了有限元分析。采用等效比热法来确定液相分数，假定固液相等同区来解决工件熔化区与非熔化区的移动边界。结果表明：用数学模型模拟出的电弧行为特征以及熔池形状与试验结果相吻合。
|
| 关 键 词： | TIG焊接 电弧与熔池 统一数学模型 有限元分析 |
| 文章编号： | 1000-3738（2006）03-0031-04 |
| 收稿时间： | 2004-10-13 |
| 修稿时间： | 2004-10-132004-12-22 |
Finite Element Analysis on United Model of TIG Welding Arc and Pool |
| |
| LU Feng-gui,TANG Xin-hua,LI Shao-qing,YAO Shun,LOU Song-nian. Finite Element Analysis on United Model of TIG Welding Arc and Pool[J]. Materials For Mechanical Engineering, 2006, 30(3): 31-34 |
| |
| Authors: | LU Feng-gui TANG Xin-hua LI Shao-qing YAO Shun LOU Song-nian |
| |
| Affiliation: | Shanghai Jiaotong University, Shanghai 200030, China |
| |
| Abstract: | Based on the theory of magneto-hydro dynamics and real welding conditions, a three-dimension united mathematical model of TIG welding arc and weld pool was established. This model avoided the assumption of constant conditions of interface between welding arc and pool, and made analysis on behavior of arc and pool more near to real situation~ Fluid flow and heat transfer of TIG welding arc and pool were analyzed based on built model with finite element analysis method. Equivalent latent heat was adopted to determine liquid quantity and solid-liquid identity was adopted to solve moving interface between molten and solid region. Computational results of welding arc and pool were close to those of the experiments. |
| |
| Keywords: | TIG welding are and pool united mathematical model finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
