| 250000 DWT超大型矿砂船双层底局部短纵桁的设计与优化 |
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| 引用本文： | 杨庆和,徐宜兵,王峰.250000 DWT超大型矿砂船双层底局部短纵桁的设计与优化[J].船舶设计通讯,2016(z2):43-48. |
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| 作者姓名： | 杨庆和 徐宜兵 王峰 |
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| 作者单位： | 上海船舶研究设计院,上海,201203;上海船舶研究设计院,上海,201203;上海船舶研究设计院,上海,201203 |
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| 摘 要： | 基于CCS规范对结构强度有限元计算,分析了超大型矿砂船的双层底中纵桁产生高应力的原因,并根据有限元计算结果提出了解决方案。通过分析比较各方案,最终选择了增加双层底局部短纵桁的形式。重点阐述了设置局部短纵桁的目的、产生的影响,并通过精细网格计算分析,对双层底局部短纵桁的加强方式进行改进,得到更优的节点形式。
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| 关 键 词： | 超大型矿砂船 双层底短纵桁 有限元分析 精细网格 |
Optimization of Partial Girders in Double Bottom for a 250 000 DWT VLOC |
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| YANG Qing-he,XU Yi-bing,WANG Feng.Optimization of Partial Girders in Double Bottom for a 250 000 DWT VLOC[J].Journal of Ship Design,2016(z2):43-48. |
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| Authors: | YANG Qing-he XU Yi-bing WANG Feng |
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| Abstract: | In the light of the FEM analysis of structure based on CCS Rules ,the reason of high stress on the center girder in double bottom and the according solutionswere presented in the paper.Adding partial girders in double bottomwas selected as an optimized method after different wayswere compared and analyzed. The purpose and impact of adding partial girders were focused on and the improvement of strengthening for a better structure detail by means of very fine mesh analysis was specified. |
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| Keywords: | VLOC partial girders in double bottom FE analysis very fine mesh |
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