| 组合热源模型在焊接数值模拟中的应用 |
| |
| 引用本文： | 盖登宇,褚元召,李庆芬,李莉.组合热源模型在焊接数值模拟中的应用[J].焊接学报,2009,30(5):61-64,68. |
| |
| 作者姓名： | 盖登宇 褚元召 李庆芬 李莉 |
| |
| 作者单位： | 1. 哈尔滨工程大学,材料科学与化学工程学院,哈尔滨,150080
2. 哈尔滨工程大学,机电学院,哈尔滨,150001 |
| |
| 摘 要： | 对不同焊接热源的特征要素进行分析,焊接数值模拟中采用高斯面热源和双椭球体热源处理焊接加热问题均不能准确地反映焊接熔池形状.文中提出焊缝表面高斯热源和焊缝内双椭球体热源结合的组合热源模型,其熔池与实际焊缝熔合线吻合.应用上述三种热源对马氏体不锈钢平板对接电弧焊的温度场及应力场进行了数值模拟.结果表明,使用组合热源进行数值模拟较之单独使用高斯或双椭球热源的残余应力计算值与实测值吻合度更高.
|
| 关 键 词： | 数值模拟 组合热源 残余应力 |
| 收稿时间： | 2009/1/6 0:00:00 |
Application of combined welding heat source in arc welding simulation |
| |
| GAI Dengyu,CHU Yuanzhao,LI Qingfen and LiLi.Application of combined welding heat source in arc welding simulation[J].Transactions of The China Welding Institution,2009,30(5):61-64,68. |
| |
| Authors: | GAI Dengyu CHU Yuanzhao LI Qingfen and LiLi |
| |
| Affiliation: | 1.Material Science and Chemical Engineering College;Harbin Engineering University;Harbin 150080;China;2.Machinery and Electrical College;Harbin 150001;China |
| |
| Abstract: | Factors of various welding heat sources were analyzed.It is found that Gaussian heat source and double ellipsoidal heat source can not indicate welding molten pool exactly in weld simulation.The combined welding heat source which combined Gaussian face heat source with double ellipsoidal body heat source was used in welding simulation.The welding molten pool calculated with the combined welding heat source consists with practice fusion line.The temperature field and stress field of stainless steel by arc we... |
| |
| Keywords: | simulation combined heat source residual stress |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载全文 |
|
