多体船舶湿甲板撞击的水弹性模拟

IF 1.3 4区 工程技术 Q3 ENGINEERING, CIVIL Journal of Ship Research Pub Date : 2021-05-20 DOI:10.5957/JSR.1995.39.3.225
J. Kvalsvold, O. Faltinsen
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引用次数: 38

摘要

分析和数值研究了多船体船舶在头部海浪中撞击湿甲板的情况。理论砰击模型是一种二维渐进方法,适用于冲击区未扰动水面和湿甲板之间的小局部角。考虑了砰击区的水面扰动和局部水弹性效应。湿甲板的弹性挠度用干法向模态表示。结构公式考虑了湿甲板中的剪切变形和转动惯量效应。研究结果表明,湿甲板结构的弹性对湿甲板上的砰击载荷和由此产生的湿甲板弹性应力有很大影响。
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Hydroelastic Modeling of Wet Deck Slamming on Multihull Vessels
Slamming against the wet deck of a multihull vessel in head sea waves is studied analytically and numerically. The theoretical slamming model is a two-dimensional, asymptotic method valid for small local angles between the undisturbed water surface and the wet deck in the impact region. The disturbance of the water surface as well as the local hydroelastic effects in the slamming area are accounted for. The elastic deflections of the wet deck are expressed in terms of dry normal modes. The structural formulation accounts for the shear deformations and the rotatory inertia effects in the wet deck. The findings show that the slamming loads on the wet deck and the resulting elastic stresses in the wet deck are strongly influenced by the elasticity of the wet deck structure.
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来源期刊
Journal of Ship Research
Journal of Ship Research 工程技术-工程:海洋
CiteScore
2.80
自引率
0.00%
发文量
12
审稿时长
6 months
期刊介绍: Original and Timely technical papers addressing problems of shipyard techniques and production of merchant and naval ships appear in this quarterly publication. Since its inception, the Journal of Ship Production and Design (formerly the Journal of Ship Production) has been a forum for peer-reviewed, professionally edited papers from academic and industry sources. As such, it has influenced the worldwide development of ship production engineering as a fully qualified professional discipline. The expanded scope seeks papers in additional areas, specifically ship design, including design for production, plus other marine technology topics, such as ship operations, shipping economic, and safety. Each issue contains a well-rounded selection of technical papers relevant to marine professionals.
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