| 不同干结构模型对箱式超大型浮体结构水弹性响应的影响 |
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| 引用本文： | 王志军,李润培,等.不同干结构模型对箱式超大型浮体结构水弹性响应的影响[J].海洋工程,2002,20(1):1-6. |
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| 作者姓名： | 王志军 李润培 |
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| 作者单位： | 上海交通大学,船舶与海洋工程学院,上海,200030 |
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| 基金项目： | 国家自然科学基金重点资助项目 ( 5 0 0 390 10 ) |
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| 摘 要： | 三维线性水弹性力学利用结构在真空中弹性振型的正交性 ,对结构振动进行模态分析 ,用弹性体三维势流理论计算结构的水动力系数。因此 ,结构的干模态计算是十分重要的。应用三维线性水弹性理论研究箱式超大型浮体结构在波浪中的动力响应时 ,分别采用梁模型和三维空间有限元模型计算结构的干模态 ,并且采用同样的水动力模型 (弹性体三维势流理论 )研究了不同干结构模型对结构水弹性响应的影响
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| 关 键 词： | 箱式超大型浮体结构 水弹性响应 干模态 有限元方法 |
| 文章编号： | 1005-9865(2002)01-0001-06 |
| 修稿时间： | 2001年3月27日 |
The effect of various dry structural model on hydroelastic response of box-type very large floating structures |
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| WANG Zhi-jun,LI Run-pei,SHU Zhi.The effect of various dry structural model on hydroelastic response of box-type very large floating structures[J].Ocean Engineering,2002,20(1):1-6. |
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| Authors: | WANG Zhi-jun LI Run-pei SHU Zhi |
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| Abstract: | In 3D linear hydroelasticity theory, the mode analysis is carried out in structural vibration based on the orthogonality of flexible mode in vacuum and the 3D potential theory of flexible body is employed to calculate the hydrodynamic coefficients. Therefore the calculation of dry flexible mode is very important. In this paper, the uniform beam model and 3D finite element model are used to calculate the dry modes of the structure in vacuum respectively, and the same hydrodynamic model(3D potential theory of flexible body) is employed to study the effect of various dry structural model on hydroelastic response of box-type VLFS. |
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| Keywords: | box-type VLFS hydroelastic response dry mode finite element method (FEM) |
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