压力容器2013，Vol.30Issue(1)：15-19,39,6.DOI:10.3969/j.issn.1001-4837.2013.01.002
双椭球热源参数调整在预测在役焊接熔池尺寸上的应用
Application of Double-ellipsoid Heat Source Parameters Adjustment on Prediction of Pool Size of In-service Welding
摘要
Abstract
Double ellipsoid heat source model usually used in the numerical simulation of the in - service welding process, and the reasonable selection of parameters of model has a decisive role on the correctness of simulation results. In the past,the adjustment of the heat source parameters takes a lot time,and also is a hard work, but the uncertainty is very large. Analytical method was used to calculate the double ellipsoid heat source parameters of carbon dioxide gas shielded arc welding, which is usually used in in - service welding. An empirical formula of pool size parameters of double ellipsoid heat model was established by the mean of combination of simulation and experimental. And the results show that, with the method, the efficiency to determine the heat parameters is improved significantly, and the size of in - service welding pool had better prediction.关键词
双椭球热源模型/熔池尺寸/在役焊接/数值模拟Key words
double ellipsoid heat source model/ pool size/ in - service welding/ numerical simulation分类
机械制造引用本文复制引用
郭广飞,王勇,韩涛,贾鹏宇..双椭球热源参数调整在预测在役焊接熔池尺寸上的应用[J].压力容器,2013,30(1):15-19,39,6.基金项目
国家自然科学基金项目(51074174) （51074174）
山东省自然科学基金项目(ZR2010EM041,Y2007A31) （ZR2010EM041,Y2007A31）
