基于局部-整体有限元法的薄壁筒焊接变形计算

赵海燕; 吴骏巍; 陆向明; 简波; 李宏伟

doi:10.16511/j.cnki.qhdxxb.2017.22.019

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清华大学学报（自然科学版） ›› 2017, Vol. 57 ›› Issue (5) : 449-453. DOI: 10.16511/j.cnki.qhdxxb.2017.22.019

机械工程

基于局部-整体有限元法的薄壁筒焊接变形计算

赵海燕¹, 吴骏巍¹, 陆向明², 简波², 李宏伟²

作者信息 +

Welding deformation predictions of thin-wall cylinders using a local-global method

ZHAO Haiyan¹, WU Junwei¹, LU Xiangming², JIAN Bo², LI Hongwei²

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文章历史 +

摘要

焊接变形会对焊接件的应用造成很大影响，进行结构件焊接变形的高精度和高效率预测具有重要的工程意义。该文针对大型薄壁圆筒件，应用局部-整体映射法对其环焊缝的焊接过程进行了有限元分析，得到了3种不同焊接顺序下的筒体变形结果。计算结果表明：相比于环缝一段焊和环缝两段焊，对环缝分成四段焊接情况下圆筒变形量最小，其数值相比于环缝一段焊减少约17%。将局部-整体法计算结果与热弹塑性法和实验方法所得结果进行了对比，三者吻合较好，但局部-整体法的计算用时仅为热弹塑性法的约1/6。

Abstract

Welding structure can be seriously affected by welding deformation. Accurate, efficient predictions of welding deformation are important in engineering projects. A local-global finite element analysis is used to analyze circumferential welding of large-scale thin-wall cylinders. The welding deformation of the cylinder is obtained in 3 sequences. The results show that the deformation of a 1/4 circle weld is less than for a full-circle weld and a 1/2 circle weld. The deformation of a 1/4 circle weld is about 17% less than for a full-circle weld. The local-global method results agree well with results from the thermo-elastic-plastic method and experimental data with the local-global method using about 1/6 of the time of the thermo-elastic-plastic method.

导出引用

赵海燕, 吴骏巍, 陆向明, 简波, 李宏伟. 基于局部-整体有限元法的薄壁筒焊接变形计算[J]. 清华大学学报（自然科学版）. 2017, 57(5): 449-453 https://doi.org/10.16511/j.cnki.qhdxxb.2017.22.019

ZHAO Haiyan, WU Junwei, LU Xiangming, JIAN Bo, LI Hongwei. Welding deformation predictions of thin-wall cylinders using a local-global method[J]. Journal of Tsinghua University(Science and Technology). 2017, 57(5): 449-453 https://doi.org/10.16511/j.cnki.qhdxxb.2017.22.019

中图分类号： TG404

参考文献

[1] 邓德安, 童彦刚, 周中玉. 薄壁低碳钢管焊接变形的数值模拟 [J]. 焊接学报, 2011, 32(2): 81-84.DENG Dean, TONG Yangang, ZHOU Zhongyu. Numerical modeling of welding distortion in thin-walled milled steel pipe [J]. Transactions of China Welding Institution, 2011, 32(2): 81-84. (in Chinese) [2] 吴言高, 李午申, 邹宏军, 等. 焊接数值模拟技术发展现状 [J]. 焊接学报, 2002, 23(3): 89-92.WU Yangao, LI Wushen, ZOU Hongjun, et al. State-of-the-art of numerical simulation in welding [J]. Transactions of China Welding Institution, 2002, 23(3): 89-92. (in Chinese) [3] 鹿安理, 史清宇, 赵海燕, 等. 焊接过程仿真领域的若干关键技术问题及其初步研究 [J]. 中国机械工程, 2000, 11(1/2): 201-205.LU Anli, SHI Qingyu, ZHAO Haiyan, et al. Key techniques and some tentative research of welding process simulation [J]. China Mechanical Engineering, 2000, 11(1/2): 201-205. (in Chinese) [4] Wang J, Ma N, Murakawa H, et al. Prediction and measurement of welding distortion of a spherical structure assembled from multi thin plates [J]. Materials & Design, 2011, 32(10): 4728-4737. [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.CAI Zhipeng. Study on Numerical Simulation of Welding Distortion in Huge Fabrications and Its Application [D]. Beijing: Tsinghua University, 2001. (in Chinese) [6] 李娅娜. 焊接变形预测与控制的数值方法研究及工程应用 [D]. 大连: 大连交通大学, 2010.LI Yana. Research and Application on Prediction and Controlling Welding Distortions Based on Numerical Method [D]. Dalian: Dalian Jiaotong University, 2010. (in Chinese) [7] Michaleris P, Debiccari A. Prediction of welding distortion [J]. Welding Journal, 1997, 76(4): 78-89. [8] Andersen L F. Residual Stresses and Deformation in Steel Structure [D]. Copenhagen: Technical University of Denmark, 2000. [9] Bruno S, Frederic B, Bergheau J. A new local global approach for the modelling of welded steel component distortions [C]//Cerjak H. Mathematical Modelling of Weld Phenomena 6. London: Maney Publishing, 2002: 997-1013. [10] 李娅娜, 兆文忠, 崔晓芳. 基于“局部-整体”映射法的焊接装配变形数值仿真 [J]. 焊接技术, 2008, 37(1): 43-46.LI Yana, ZHAO Wenzhong, CUI Xiaofang. Welding assembly deformation numerical simulation based on “local-global” method [J] Welding Technology, 2008, 37(1): 43-46. (in Chinese) [11] 董文超, 陆善平, 李殿中. 焊接顺序对大型薄板装甲钢结构焊接变形的影响 [J]. 焊接学报, 2015, 36(7): 43-46.DONG Wenchao, LU Shanping, LI Dianzhong. Effect of welding sequence on welding distortion of large sized thin armor steel structure [J]. Transactions of China Welding Institution, 2015, 36(7): 43-46. (in Chinese) [12] Sattari-Far I, Javadi Y. Influence of welding sequence on welding distortions in pipes [J]. International Journal of Pressure Vessels and Piping, 2008, 85(4): 265-274.

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2016-07-26	2017-05-15
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