Research on Bow Slamming Load of Post-Panamax Container Ship

超巴拿马型集装箱船船头砰击载荷研究

基本信息

批准号：
15360464
负责人：
ARAI Makoto
金额：
$ 5.95万
依托单位：
Yokohama National University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2006
项目状态：
已结题

项目摘要

The size of container ships has been remarkably increased since 1990s. There are several reasons for this phenomenon such as striking increase of the volume of marine transportation in East Asia, alliance of shipping companies to strengthen their competitive business power, rapid modernization of port facilities, etc. This size change of container ships leads to some new problems in naval engineering. One of them is a problem of bow-flare slamming. In the design stage of conventional container ships, a simple design formula based on the damage records of bow flare structures of small and medium sized container ships has been used. However the rapid change of the ship size makes it difficult for the ship designers to apply the design formula to recently appearing very large container ships. In this study a numerical approach to predict the slamming load that is exerted on the bow of large container ships has been studied. In the process of developing 3D numerical method, the numerical program was validated by applying it to a similar impact problem called sloshing since a lot of data for validation were available. After validating the numerical method, it was applied to the bow-flare slamming problem of a Post-Panamax container ship. A series of large scale model experiment were performed, and impact pressure on the bow flare, local wave elevation, green water on deck, ship motion, etc., were measured. Numerical simulations were also carried out and the results of model experiment were examined. The limit of 2D method was realized and the superiority of 3D method was confirmed. Our 3D numerical method is useful to predict reasonably the impact pressure that is exerted on the bow flare of large container ships. We have published 25 research papers that are related to this study.

自1990年代以来，容器船的规模已大大增加。这种现象的原因有很多，例如东亚海洋运输量的增加，运输公司的联盟以增强其竞争性业务力量，港口设施的快速现代化等。集装箱船的这种尺寸变化导致海军工程中的一些新问题。其中之一是弓箭猛烈抨击的问题。在常规集装箱船的设计阶段，使用了一个简单的设计公式，该公式基于中小型容器船的弓形火炬结构的损坏记录。但是，船舶尺寸的快速变化使船舶设计人员很难将设计公式应用于最近出现非常大的容器船。在这项研究中，已经研究了一种数值方法来预测大型容器船弓上施加的猛增载荷。在开发3D数值方法的过程中，通过将其应用于称为宽道的类似影响问题来验证数值程序，因为许多用于验证的数据。验证数值方法后，将其应用于panamax集装箱船的弓箭猛烈抨击问题。测量了一系列大型模型实验，并测量了弓形耀斑，局部波升高，甲板上的绿色水，船舶运动等的影响压力。还进行了数值模拟，并检查了模型实验的结果。实现了2D方法的极限，并确认了3D方法的优势。我们的3D数值方法有助于预测大型容器船弓形耀斑的冲击压力。我们发表了25篇与这项研究有关的研究论文。

项目成果

期刊论文数量（61）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Three-Dimensional Numerical Simulation of Sloshing in Tanks of LNG Carriers

LNG运输船储罐晃动三维数值模拟

DOI：
发表时间：
2005
期刊：
Conference Proceedings of The Japan Society of Naval Architects and Ocean Engineers Vol. 1
影响因子：
0
作者：
Arai;M.;Y.Ogawa;Humberto S
通讯作者：
Humberto S

Numerical simulation of bulk carriers' ballast water exchange at sea and assessment of sloshing loads

散货船海上压载水交换数值模拟及晃荡载荷评估

DOI：
发表时间：
2004
期刊：
Proceedings of ISOPE-2004
影响因子：
0
作者：
Arai;M
通讯作者：
M

Prediction of Sloshing Load in Irregular Seaways by a Numerical Simulation Method

不规则航道晃荡载荷的数值模拟方法预测

DOI：
发表时间：
2005
期刊：
Proceedings of ISOPE-2005
影响因子：
0
作者：
Arai;M.;Y.Ogawa;Humberto S;荒井誠;Humberto S;Makoto Arai;Makoto Arai;荒井誠;Humberto S. Makiyams
通讯作者：
Humberto S. Makiyams

Green Sea Loads on General Cargo Ship

杂货船上的绿海负荷