集装箱船大厚板焊接接头面外变形控制分析  

Out-of-plane welding distortion control of thick plate butt-welded joint of a container ship

作　　者：王江超[1,2] 史雄华 周宏 刘建峰[4] WANG Jiangchao;SHI Xionghua;ZHOU Hong;LIU Jianfeng(School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Collaborative Innovation Center for Advanced Ship and Deep-sea Exploration,Shanghai Jiao Tong University,Shanghai 200240,China;School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Shanghai Waigaoqiao Shipbuilding Co.,Ltd.,Shanghai 200137,China)

机构地区：[1]华中科技大学船舶与海洋工程学院,湖北武汉430074 [2]上海交通大学高新船舶与深海开发装备协同创新中心,上海200240 [3]江苏科技大学船舶与海洋工程学院,江苏镇江212003 [4]上海外高桥造船有限公司,上海200137

出　　处：《哈尔滨工程大学学报》2019年第9期1562-1568,共7页Journal of Harbin Engineering University

基　　金：工业与信息化部高技术船舶科研专项(15921019518)

摘　　要：集装箱船舷侧的抗扭箱结构,多采用60~85mm级别的高强钢大厚板进行焊接建造;复杂的多层多道焊过程,使得焊接力学响应极为复杂,且焊接面外变形不易预测,直接影响建造精度和造船周期。针对其精度建造问题,本文预测并控制了对接焊接头的面外变形。通过采用基于并行计算技术的热-弹-塑性有限分析,考虑多层多道焊中的重熔现象,高效且精确地预测了传统焊接工艺下变厚度对接接头的面外变形。同时,使用对称顺序焊接、反变形加载,特别是优化坡口等方法,有效地控制了焊接面外变形。研究结果表明:本文提出的算法提高了温度场及焊接变形的计算效率;在一次翻身的情况下,实现了大厚板高效且精准地焊接建造,提高了焊接建造的效率。The torsion box structure of a container ship is usually fabricated with 60-85 mm-thick high-tensile-strength steel plates.The complex multipass welding makes the welding mechanical response extremely complicated.In addition,it is difficult to predict the out-of-plane welding distortion,which directly affects the construction precision and shipbuilding cycle.To solve the issue of fabrication accuracy,the thermal-elastic-plastic finite element (FE) analysis is applied on the basis of parallel computation,considering the re-melt phenomenon.The out-of-plane welding distortion of a variable-thickness butt joint welded using the traditional welding procedure is effectively and precisely predicted.Furthermore,sequential welding procedure,reverse deformation loading and,especially,the welding groove design optimization method,were used to effectively control the out-of-plane welding distortion.In particular,the groove design optimization method could achieve efficient and accurate fabrication for a thick plate with one turnover.

关 键 词：焊接变形 大厚板多层多道焊 高效有限元分析 并行计算技术 对称顺序焊接 反变形施加 焊接坡口优化 抗扭箱结构 

分 类 号：U671.8[交通运输工程—船舶及航道工程]