Oblique Wave-Induced Responses of A VLFS Edged with A Pair of Inclined Perforated Plates
Oblique Wave-Induced Responses of A VLFS Edged with A Pair of Inclined Perforated Plates
复制标题
带有一对倾斜穿孔板的 VLFS 的斜波诱发响应
DOI：
10.1007/s13344-018-0002-4
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发表时间：
2018
影响因子：
1.6
通讯作者：
Gaidai Oleg
中科院分区：
文献类型：
--
作者：
Yong Cheng;Chun-yan Ji;Gang-jun Zhai;Gaidai Oleg
本文采用直接耦合法研究了一个带有一对水平/倾斜穿孔抗动板的矩形超大型浮体结构（VLFS）的水弹性响应。应用更新的拉格朗日公式建立VLFS的平衡方程，并通过达西定律对包括多孔板的粘性效应的数值模型中的流体采用总势公式。采用有限元-边界元混合法（FE-BE）计算了各种斜入射波作用下超大型浮体结构（VLFS）与附加穿孔板的响应折减。此外，数值解验证了一系列的实验测试。在给定的海况条件下，通过选择合适的设计参数，如孔隙率、淹没深度、板宽和倾角，可以显著提高多孔板减小VLFS挠度的效果。
This paper is concerned with the hydroelastic responses of a mat-like, rectangular very large floating structure (VLFS) edged with a pair of horizontal/inclined perforated anti-motion plates in the context of the direct coupling method. The updated Lagrangian formulae are applied to establish the equilibrium equations of the VLFS and the total potential formula is employed for fluids in the numerical model including the viscous effect of the perforated plates through the Darcy’s law. The hybrid finite element-boundary element (FE-BE) method is implemented to determine the response reduction of VLFS with attached perforated plates under various oblique incident waves. Also, the numerical solutions are validated against a series of experimental tests. The effectiveness of the attached perforated plates in reducing the deflections of the VLFS can be significantly improved by selecting the proper design parameters such as the porous parameter, submergence depth, plate width and inclination angle for the given sea conditions.