Error Analysis of Maximum Power Density for Double Ellipsoidal Heat Source Model

摘要：

In order to analyze the maximum power density error with different heat flux distribution parameter values for double ellipsoidal heat source model, begin with Goldak double ellipsoidal heat source model, derive the general expression of double ellipsoidal heat source model, and analyze the error of maximum power density under this foundation. The result shows in order to guarantee the accuracy of welding simulation result, it is better to introduce an error correction coefficient into the Goldak double ellipsoidal heat source model expression. And, heat flux distribution parameter should get higher value for the higher power density welding methods.

关键词： double ellipsoidal heat source model numerical simulation heat flux distribution parameter maximum power density

作者: Zhentai ZHENG Ping SHAN Zhen LUO Huimin LV Kai ZHANG

作者单位: School of Materials Science and Engineering, Hebei University of Technology,Tianjin 300130, China School of Materials Science and Engineering, Tianjin University, Tianjin 300072,China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）