| 平底圆筒底部垂直撞水的实验及数值计算 |
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| 引用本文： | 李世其,郑际嘉,岳亚丁.平底圆筒底部垂直撞水的实验及数值计算[J].航空学报,1996,17(3):265-272. |
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| 作者姓名： | 李世其 郑际嘉 岳亚丁 |
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| 作者单位： | 华中理工大学船舶和海洋工程系,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助课题 |
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| 摘 要： | 实验采用 4种不同厚度底板的圆筒模型。以不同下落高度撞水,测量底板径向压力分布和应变响应。数值计算中联立求解底板弹性动力响应方程和流场方程。实验和数值分析表明底板的初始几何缺陷和弹性变形对冲击压力具有较大影响
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| 关 键 词： | 圆柱壳体 冲撞 液体动力学 |
| 收稿时间： | 1994-07-01 |
| 修稿时间： | 1995-01-05 |
EXPERIMENTAL AND NUMERICAL STUDIES OF VERTICAL HYDRODYNAMIC IMPACT OF FLAT-BOTTOM CYLINDER |
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| Li Shiqi,Zheng Jijia,Yue Yading.EXPERIMENTAL AND NUMERICAL STUDIES OF VERTICAL HYDRODYNAMIC IMPACT OF FLAT-BOTTOM CYLINDER[J].Acta Aeronautica et Astronautica Sinica,1996,17(3):265-272. |
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| Authors: | Li Shiqi Zheng Jijia Yue Yading |
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| Institution: | Departmet of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan,430074 |
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| Abstract: | The vertical hydrodynamic impact of flat bottom cylinders was investigated experimentally and numerically. Through four cylinder models with different bottom thicknesses the radial distributions of the impact pressure and the strain responses for different dropping heights were measured in the experiment. The coupled dynamic equations of the elastic bottom and the fluids were solved numerically. The results show that the initial geometric imperfection and the elastic deformation of the bottom have great influence on the impact pressure. |
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| Keywords: | cylindrical shell impact hydrodynamics |
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