大型复杂结构件高效焊接热源
Research on efficient welding heat source model for large and complex structures
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摘要: 文中基于分段化思想,建立了以焊缝等效温度为控制参数的分段移动温控型体热源模型,并利用Q345B平板对接焊模型对其进行模拟验证. 同时以计算时间、计算精度为基准,基于不同网格尺寸,对分段移动温控型热源、逐点移动双椭球体热源、分段移动双椭球体热源三种热源模型的计算效率进行对比分析. 结果表明,文中提出的分段移动温控型体热源模型所获得的残余应力和变形与逐点移动双椭球体热源模拟结果趋势一致,其计算精度与分段移动双椭球体热源相当,但计算效率更高,在复杂结构件上的使用效果更突出.Abstract: Based on the sectional theory, the segmented moving temperature-controlled volume heat source model was proposed by using weld equivalent temperature as control variables, and it was verified through Q345B flat butt welding model. With calculation time and accuracy as a reference, based on different mesh sizes, the computing efficiency was compared between three kinds of heat source models including the segmented moving temperature-controlled heat source model, the double ellipsoid heat source model and the segmented moving double ellipsoid heat source model. The results showed that the trend of residual stress and deformation of the proposed model was consistent with that of the moving double ellipsoid heat resource model, and its accuracy was similar to that of the segmented moving double ellipsoid heat source model, but the calculation time is shorter. Particularly, the effect was more prominent on the large and complex structures.
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[1] 汪建华. 焊接数值模拟技术及其应用[M]. 上海: 上海交通大学出版社, 2003. [2] 汪 苏, 王春侠, 郭军刚. 航空发动机薄壁机匣激光焊接有限元数值模拟[J]. 北京航空航天大学学报, 2006, 32(7): 833-837. Wang Su, Wang Chunxia, Guo Jungang.Finite element numerical simulation of laser welding for thin-wall outer casing on aeroengine[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(7): 833-837. [3] 崔晓芳. 箱型结构焊接变形预测、控制及应用[D]. 大连: 大连交通大学, 2005. [4] 陈建波, 罗 宇, 龙 哲. 大型复杂结构焊接变形热弹塑性有限元分析[J]. 焊接学报, 2008, 29(4): 69-72. Chen Jianbo, Luo Yu, Long Zhe. Analysis on welding distortion of large complicated structure by thermal elastic-plastic finite element method[J]. Transactions of the China Welding Institution, 2008, 29(4): 69-72. [5] 蔡志鹏. 大型结构焊接变形数值模拟的研究与应用[D]. 北京: 清华大学, 2001. [6] 姬书得, 方洪渊, 刘雪松, 等. 基于串状热源的手工摆动焊应力场的数值模拟[J]. 焊接学报, 2005, 26(5): 46-52. Ji Shude, Fang Hongyuan, Liu Xuesong, et al. Numerical simulation of stress field of manual swing welding on basis of cluster heat source[J]. Transactions of the China Welding Institution, 2005, 26(5): 46-52. [7] 郑振太, 曹文杰, 许晓航, 等. 结合型分布带状分段移动热源模型[J]. 焊接学报, 2010, 31(7): 95-97. Zheng Zhentai, Cao Wenjie, Xu Xiaohang, et al. Segment-moving heat source model with strip-shape and combined distribution of heat flux[J]. Transactions of the China Welding Institution, 2010, 31(7): 95-97. [8] 拉达伊D. 著, 熊第京, 郑朝云, 等, 译. 焊接热效应[M]. 北京: 机械工业出版社, 1997. [9] 《机械工程材料性能数据手册》编委会. 机械工程材料性能数据手册[M]. 北京: 机械工业出版社, 1994. -
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