| 水下爆炸空化效应作用下全船响应的并行计算(英文) |
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| 引用本文： | 宗智,赵延杰,叶帆,李海涛,陈岗.水下爆炸空化效应作用下全船响应的并行计算(英文)[J].船舶与海洋工程学报,2012,11(4):469-477. |
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| 作者姓名： | 宗智 赵延杰 叶帆 李海涛 陈岗 |
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| 作者单位： | School of Naval Architecture Engineering,Dalian University of Technology;Marine Design & Research Institute of China |
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| 基金项目： | Supported by the National Natural Science Foundation of China(Grant No.50921001);National Key Basic Research Special Foundation of China(Grant No.2010CB832704);Scientific Project for High-tech Ships:Key Technical Research on the Semi-planning Hybrid Fore-body Trimaran;Doctoral Research Foundation of Liaoning Province(Grant No.20091012) |
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| 摘 要： | As well as shock wave and bubble pulse loading, cavitation also has very significant influences on the dynamic response of surface ships and other near-surface marine structures to underwater explosive loadings. In this paper, the acoustic-structure coupling method embedded in ABAQUS is adopted to do numerical analysis of underwater explosion considering cavitation. Both the shape of bulk cavitation region and local cavitation region are obtained, and they are in good agreement with analytical results. The duration of reloading is several times longer than that of a shock wave. In the end, both the single computation and parallel computation of the cavitation effect on the dynamic responses of a full-scale ship are presented, which proved that reloading caused by cavitation is non-ignorable. All these results are helpful in understanding underwater explosion cavitation effects.
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| 关 键 词： | underwater explosion cavitation parallel computation full-scale ship |
Parallel computing of the underwater explosion cavitation effects on full-scale ship structures |
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| Zhi Zong,Yanjie Zhao,Fan Ye,Haitao Li,Gang Chen.Parallel computing of the underwater explosion cavitation effects on full-scale ship structures[J].Journal of Marine Science and Application,2012,11(4):469-477. |
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| Authors: | Zhi Zong Yanjie Zhao Fan Ye Haitao Li Gang Chen |
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| Institution: | 1. School of Naval Architecture Engineering, Dalian University of Technology, Dalian, 116024, China
2. Marine Design & Research Institute of China, Shanghai, 200011, China
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| Abstract: | As well as shock wave and bubble pulse loading, cavitation also has very significant influences on the dynamic response of surface ships and other near-surface marine structures to underwater explosive loadings. In this paper, the acoustic-structure coupling method embedded in ABAQUS is adopted to do numerical analysis of underwater explosion considering cavitation. Both the shape of bulk cavitation region and local cavitation region are obtained, and they are in good agreement with analytical results. The duration of reloading is several times longer than that of a shock wave. In the end, both the single computation and parallel computation of the cavitation effect on the dynamic responses of a full-scale ship are presented, which proved that reloading caused by cavitation is non-ignorable. All these results are helpful in understanding underwater explosion cavitation effects. |
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