Second-order hydroelastic analysis of a floating plate in multidirectional irregular waves

被引：20
作者：
Chen, Xujun [1 ]
Moan, Torgeir
Fu, Shixiao
Cui, Weicheng
机构：
[1] Norwegian Univ Sci & Technol, Ctr Ships & Ocean Struct, N-7491 Trondheim, Norway
[2] PLA Univ Sci & Technol, Engn Inst Engn Corps, Nanjing 210007, Peoples R China
[3] China Ship Sci Res Ctr, Wuxi 214082, Peoples R China
来源：
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS | 2006年 / 41卷 / 10期
基金：
中国国家自然科学基金;
关键词：
floating plate; non-linear hydroelasticity; frequency domain; multidirectional waves;
D O I：
10.1016/j.ijnonlinmec.2006.12.003
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Based on an analysis of second-order hydrodynamic forces induced by coupling of first-order wave potentials, second-order hydroelastic equations are established and solved in the frequency domain. The responses of a very large floating structure in multidirectional irregular waves are studied. The characteristics of the difference and sum frequency coordinates are discussed in detail; peaks can be found at the difference and sum frequencies close to the wet resonant frequencies of each mode. We present and analyze the maximum vertical displacement of different points as well as the time history of the vertical displacements of selected points. The differences of the combined (the summation of the linear and non-linear responses) and linear displacements of the selected points are calculated. Our results demonstrate that non-linear fluid forces influence the total responses of the referenced floating structure. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1206 / 1218
页数：13
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