| 基于ABAQUS的结构入水砰击流固耦合特性分析 |
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| 引用本文： | 金辉,周学滨,溪慧巍,刘文思.基于ABAQUS的结构入水砰击流固耦合特性分析[J].北京理工大学学报,2016,36(S1):57-60,84. |
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| 作者姓名： | 金辉 周学滨 溪慧巍 刘文思 |
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| 作者单位： | 91439部队, 辽宁, 大连 116041,91439部队, 辽宁, 大连 116041,91439部队, 辽宁, 大连 116041,91439部队, 辽宁, 大连 116041 |
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| 基金项目： | 国家部委基金资助项目（hjzk2013716） |
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| 摘 要： | 基于耦合欧拉-拉格朗日方法，应用ABAQUS软件建立球体垂直入水模型，通过对两种材料球体入水过程数值仿真结果与实验数据进行对比，验证了应用此方法解决流固耦合问题的有效性，根据已有模型依次改变迭代时间步长和泊松比，得出了数值处理参数的改变对空泡形态、球体速度等数据的影响.研究表明，时间步的改变比泊松比对数值结果的影响更为明显.改变入水材料的泊松比可以在一定程度上改变球体入水后的运动特性，但对于空泡发展过程的影响微乎其微.
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| 关 键 词： | 耦合欧拉-拉格朗日方法 结构入水 数值处理参数 空泡形态 球体速度 |
| 收稿时间： | 2016/3/26 0:00:00 |
Fluid-Structure Characteristics Analysis of Water Entry Slamming using ABAQUS Simulations |
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| JIN Hui,ZHOU Xue-bin,XI Hui-wei and LIU Wen-si.Fluid-Structure Characteristics Analysis of Water Entry Slamming using ABAQUS Simulations[J].Journal of Beijing Institute of Technology(Natural Science Edition),2016,36(S1):57-60,84. |
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| Authors: | JIN Hui ZHOU Xue-bin XI Hui-wei and LIU Wen-si |
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| Institution: | 91439 Unit, Daiian, Liaoning 116041, China,91439 Unit, Daiian, Liaoning 116041, China,91439 Unit, Daiian, Liaoning 116041, China and 91439 Unit, Daiian, Liaoning 116041, China |
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| Abstract: | In the field of ship building and marine engineering, investigations the mechanics and motion characteristics of structures in the flow field and the reaction of structures to the flow field are significant to many aspects. In the present paper, a sphere-into-water model was established using ABAQUS based on the coupled Euler-Lagrangian(CEL) method, which was verified effectively after comparing the numerical results of spheres made by two materials into water with experimental data. According to the established model of the sphere into water, the iterative time step plays more important role than that of Poisson''s ratio. It is observed that the change of iterative time step will bring more impacts than the other parameters. |
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| Keywords: | CEL method water entry numerical parameters cavity shape sphere speed |
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