水下爆炸空化效应作用下全船响应的并行计算(英文)

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 d...

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Published in船舶与海洋工程学报：英文版 no. 4; pp. 469 - 477
Main Author 宗智 赵延杰 叶帆 李海涛 陈岗
Format Journal Article
LanguageEnglish
Published 2012
Subjects
cavitation
computation
explosion
full-scale
parallel
ship
underwater
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ISSN1671-9433
1993-5048

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Summary: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.
Bibliography:Zhi Zong1, Yanjie Zhao1, Fan Ye2, Haitao Li1 and Gang Chen1 1. School of Naval Architecture Engineering, Dalian University of Technology, Dalian 116024, China 2. Marine Design & Research Institute of China, Shanghai 200011, China
23-1505/T
ISSN:1671-9433
1993-5048