| 下水过程中气囊承载接触变形数值分析 |
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| 引用本文： | 余龙,丁金鸿,夏利娟,杨启.下水过程中气囊承载接触变形数值分析[J].船舶工程,2015,37(2):14-17. |
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| 作者姓名： | 余龙 丁金鸿 夏利娟 杨启 |
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| 作者单位： | 上海交通大学 海洋工程国家重点实验室 船舶海洋与建筑工程学院 上海,上海交通大学 海洋工程国家重点实验室 船舶海洋与建筑工程学院 上海,上海交通大学 海洋工程国家重点实验室 船舶海洋与建筑工程学院 上海,上海交通大学 海洋工程国家重点实验室 船舶海洋与建筑工程学院 上海 |
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| 摘 要： | 文章建立了气囊、船体及船台的接触有限元模型,采用超弹性本构模型模拟囊体材料特性,分析了在下水过程中三维承压气囊非线性接触变形特征,并对某大型散货船气囊下水过程中的危险工况进行分析,总结了典型船体形状对气囊承压变形的影响,修正了下水过程中典型气囊承载的极限变形量,可用于指导下水实践。
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| 关 键 词： | 船用气囊 超弹性本构 下水过程 接触变形 |
| 收稿时间： | 2014/7/29 0:00:00 |
| 修稿时间： | 2014/10/7 0:00:00 |
Numerical Analysis for Ultimate Contact Deformation of Loaded Ship-airbags during Launching Process |
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| Long Yu,Jinhong Ding,Lijuan Xia and.Numerical Analysis for Ultimate Contact Deformation of Loaded Ship-airbags during Launching Process[J].Ship Engineering,2015,37(2):14-17. |
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| Authors: | Long Yu Jinhong Ding Lijuan Xia and |
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| Institution: | Shanghai Jiao Tong University,State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering |
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| Abstract: | This paper built the Finite Element models for ship-airbags, slipway and ship hull. The membrane enveloped aribag was modelled with hyperelastic consitutive model. It analyzed three dimensional contact deformations of ship-airbags during launching process. A large bulk carrier has been computed to discover the ultimate deformation of the ship-airbags. The influence induced by geometry of the hull to ship-airbags has been concluded. The ultimate compressing value has been brought out for guiding the lauching practices. |
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| Keywords: | Ship airbag hyperelastice constitutive model launching process contact deformation |
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