| 大圆筒结构-土-波浪相互作用的动力响应分析 |
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| 引用本文： | 汪德江,叶志明.大圆筒结构-土-波浪相互作用的动力响应分析[J].上海大学学报(自然科学版),2012,18(1):87-91. |
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| 作者姓名： | 汪德江 叶志明 |
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| 作者单位： | 上海大学 土木工程系，上海 200072 |
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| 基金项目： | 国家自然科学基金资助项目(11072143) |
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| 摘 要： | 针对新型的大圆筒薄壳结构的复杂动力特性，建立大圆筒结构-土-波浪相互作用的三维非线性有限元模型.通过设定无厚度的接触面单元，来模拟薄壳圆筒-土之间的非线性接触特性；采用土体的非线性本构模型，并同时计入波浪等动荷载的作用对结构进行动力响应分析，得到大圆筒上的x方向及y方向应力分布规律，以及应力随波浪力和埋深的变化规律；最终给出了圆筒结构的应力分布函数式及合理的壁厚尺度.
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| 关 键 词： | 大圆筒结构 动力响应 应力函数 |
| 收稿时间： | 2010-09-29 |
Dynamic Response Analysis of Interaction between Large Cylinder Structure,Soil and Wave |
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| WANG De-jiang,YE Zhi-ming.Dynamic Response Analysis of Interaction between Large Cylinder Structure,Soil and Wave[J].Journal of Shanghai University(Natural Science),2012,18(1):87-91. |
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| Authors: | WANG De-jiang YE Zhi-ming |
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| Institution: | Department of Civil Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | Based on the complex dynamic characteristics of new shell structure,a 3-D nonlinear finite element model of interaction between large cylinder structure,soil and wave is established.The non-linear contact characteristics between shell structure and soil are simulated by setting contact element of zero thickness.The non-linear constitutive model of soil is used to simulate dynamic response analysis of the structure under the dynamic loads on waves.The distribution of stress in x-and y-directions,the changing law of stress with wave and buried depth are obtained.Finally the stress distribution function and reasonable size of cylinder structure are given. |
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| Keywords: | large cylinder structure dynamic response stress function |
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