| 三维刚体椭圆头结构高速倾斜入水冲击模拟 |
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| 引用本文： | 郑金伟,宗智.三维刚体椭圆头结构高速倾斜入水冲击模拟[J].船海工程,2012,41(3):7-9,12. |
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| 作者姓名： | 郑金伟 宗智 |
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| 作者单位： | 1. 南通中远川崎船舶工程有限公司,江苏南通,226005
2. 大连理工大学船舶工程学院,辽宁大连,116024 |
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| 摘 要： | 分析结构入水抨击载荷的非线性问题,利用ANSYS/LS-DYNA软件建立三维刚体椭圆头结构入水模型,采用软件中的ALE算法,研究结构以不同入水角度和入水速度高速倾斜入水时,结构在入水初期所遭受的冲击压力峰值,得到不同条件入水时的压力峰值曲线,同时观察到在冲击入水初期自由液面的变化和伴随现象。
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| 关 键 词： | 入水 三位数值模拟 冲击 冲击波 流固耦合 |
3-Dimensional Numerical Simulation of Rigid Elliptic Structure Inclined Water-Entry at High Speed |
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| Authors: | ZHENG Jin-wei ZONG Zhi |
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| Institution: | 1 Nantong COSCO KHI Ship Engineering Co.Ltd.,Nantong Jiangsu 226005,China;2 School of Naval Architecture and Ocean Engineering,Dalian University of Technology,Dalian Liaoning 116024,China) |
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| Abstract: | A 3D numerical model of rigid elliptic structure was established in Ansys/LS-Dyna to analyzed the nonlinear problem of structure water-entry.The arbitrary Lagrangian-Eulerian(ALE) algorithm was applied to simulate the elliptic head impacting on the calm water surface at the initial stage of water-entry.By studying this structure entering water at different velocities and different angles,a series of curves which show the peak pressure impacting on the structure was obtained.What’s more,the changes of free surface and correlative phenomena in this stage were presented. |
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| Keywords: | water-entry 3D numerical simulation impact fluid-structure interaction |
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