| Wall Effect of Underwater Explosion Load Based on Wave Motion Theories |
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| 作者姓名： | 肖巍 姚熊亮 郭君 |
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| 作者单位： | College of Shipbuilding Engineering,Harbin Engineering University,Harbin150001,China |
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| 基金项目： | XIAOWei（肖巍）,YAOXiong-liang（姚熊亮）1andGUOJun（郭君）College of Shipbuilding Engineering,Harbin Engineering University,Harbin150001,China |
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| 摘 要： | Owing to the existence of the flow field boundary, the shock wave load near the boundary is different from the freefield shock wave load. In the present paper, the hull plate load subjected to underwater shock wave is investigated based onwave motion theories; in addition, the experimental study of the hull plate load is carried out. According to the theoreticalanalysis of the hull plate pressure, we find that the hull plate pressure oscillates repeatedly and decays rapidly with timepassing, the maximum hull plate pressure is 2/（1＋n） times the maximum free field pressure, where n is the ratio ofimpedance, and the impulse is much smaller than the free field impulse. Compared with the experimental study, thetheoretical results agree well with the experimental data.
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| 关 键 词： | underwater explosion wave motion theories wall effect impedance experiment |
Wall effect of underwater explosion load based on wave motion theories |
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| XIAO Wei
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YAO Xiong-liang
,
GUO Jun.Wall Effect of Underwater Explosion Load Based on Wave Motion Theories[J].China Ocean Engineering,2014,28(5):587-598. |
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| Authors: | XIAO Wei YAO Xiong-liang GUO Jun |
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| Institution: | College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | Owing to the existence of the flow field boundary, the shock wave load near the boundary is different from the free field shock wave load. In the present paper, the hull plate load subjected to underwater shock wave is investigated based on wave motion theories; in addition, the experimental study of the hull plate load is carried out. According to the theoretical analysis of the hull plate pressure, we find that the hull plate pressure oscillates repeatedly and decays rapidly with time passing, the maximum hull plate pressure is 2/(1+n) times the maximum free field pressure, where n is the ratio of impedance, and the impulse is much smaller than the free field impulse. Compared with the experimental study, the theoretical results agree well with the experimental data. |
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| Keywords: | underwater explosion wave motion theories wall effect impedance experiment |
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