Prediction of Welding Deformation of Ship Hull Panel Block

机译：船体面板块焊接变形的预测

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Simulation of welding distortions in ship sections are performed for the purpose of establishing utility-based design principles. The long-term goal is to specify an optimal welding procedure to minimize distortions and residual stresses due to welding. The equivalent load method based on inherent strain is presented in this paper. A simplified elastic plastic analysis model, bar-spring model is used while combining the inherent strain theory and the experimental results for accurate and efficient analysis. It is shown that the values of highest temperature and degree of restraint change the distributions of the inherent strains in the welded region. Applying the equivalent loads induced by the inherent strain on the structure, the final deformations, namely, in-plane shrinkage and out-of- plane distortion are calculated by FE analysis. The results in this paper have been supported by the experimental data.

机译：为了建立基于实用程序的设计原则，进行了船段焊接变形的模拟。长期目标是指定一种最佳的焊接程序，以最大程度地减少焊接引起的变形和残余应力。提出了一种基于固有应变的等效荷载法。使用简化的弹性塑性分析模型-杆弹簧模型，同时结合了固有应变理论和实验结果，可以进行准确而有效的分析。结果表明，最高温度和约束程度的值改变了焊接区域中固有应变的分布。将固有应变引起的等效载荷施加到结构上，通过有限元分析计算出最终变形，即面内收缩和面外变形。本文的结果得到了实验数据的支持。

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来源
《Ship Design, Production and Operation》|2007年|414-418|共5页
会议地点 Harbin(CN)
作者
Han Yuexin; rnLiu Jie; rnYin Wanzhong;
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作者单位

Hong Li@College of Civil Engineering, Harbin Engineering University, Harbin, Heilongjiang, China--Shangjun Yang@College of Civil Engineering, Harbin Engineering University, Harbin, Heilongjiang, China--Hullong Ren@College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang, China--;

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原文格式 PDF
正文语种 eng
中图分类船舶工程;
关键词
welding deformation; inherent strain; temperature field; degree of restraint; FEM;

机译：焊接变形；固有应变；温度场；约束度；有限元;

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Prediction of Welding Deformation of Ship Hull Panel Block

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