| 弹塑性固有应变法在厚壁球面舱壁结构焊接中的应用 |
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| 引用本文： | 孟凡明,庞福振,姚熊亮,彭溢.弹塑性固有应变法在厚壁球面舱壁结构焊接中的应用[J].中国舰船研究,2009,4(1). |
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| 作者姓名： | 孟凡明 庞福振 姚熊亮 彭溢 |
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| 作者单位： | 1. 渤海船舶重工有限责任公司军事代表室,辽宁,葫芦岛,125004
2. 哈尔滨工程大学,船舶工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 海军装备预先研究项目 |
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| 摘 要： | 针对热弹塑性有限元法仅适用小规模焊接的弊端,采用弹塑性固有应变法对厚壁球面舱壁结构的焊接工艺进行模拟,并对球面舱壁结构的焊接工艺进行优化,最终给出球面舱壁结构合理的焊接工艺.在大型有限元软件ANSYS的基础上,通过开发的热弹塑性焊接计算程序得到单道焊缝焊接时的残余应变;通过残余应变等效,对球面舱壁的各焊缝处施加温度载荷;通过一次弹塑性有限元法得到厚壁球面舱壁结构的整体变形.通过开展不同焊接工艺下球面舱壁结构的焊接变形分析,给出厚壁球面舱壁结构合理的焊接工艺.
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| 关 键 词： | 弹塑性固有应变法 厚壁球面舱壁 焊接变形 焊接工艺 |
Application of Elastic-plastic Inherent Strain Method by FEM on the Welding of a Thick Spherical Bulkhead |
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| Meng Fan-ming,Pang Fu-zhen,Yao Xiong-liang,Peng Yi.Application of Elastic-plastic Inherent Strain Method by FEM on the Welding of a Thick Spherical Bulkhead[J].Chinese Journal of Ship Research,2009,4(1). |
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| Authors: | Meng Fan-ming Pang Fu-zhen Yao Xiong-liang Peng Yi |
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| Institution: | Meng Fan-ming1 Pang Fu-zhen2 Yao Xiong-liang2 Peng Yi2 1 Military Representative Office,Bohai Shipping Heavy Industry Co. Ltd.,Huludao 125004,China 2 College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China |
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| Abstract: | Elastic-plastic Inherent strain method is proposed to simulate the welding of a thick spherical stem bulkhead of a submarine, which eliminates the deficiency of the thermal Elastic-plastic FEM that only suits for small-scale welding calculations. Also, the welding technique of spherical stem bulkhead is optimized and a reasonable welding technique is obtained in this paper. Base on ANSYS, a thermal Elastic-plastic welding program is developed hereby to calculate the residual strain of one welding seam. Ther... |
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| Keywords: | elastic-plastic inherent strain method thick spherical stem bulkhead residual deformation welding technique |
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