Development of Large Shallow Draft Vessels

大型浅吃水船舶的研制

• 批准号: 05045028
• 负责人: INOUE Yoshiyuki
• 金额: $ 3.84万
• 依托单位: YOKOHAMA NATIONAL UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05045028/
• 关键词: Hydroelastic; shallow draft; 浅吃水船

To carry out joint research works of Yokohama National University and Shanghai Jiao Tong University on "Development of large shallow draft vessels, " 4 researchers of Yokohama National University have been in China and 2 professors of Shanghai Jiao Tong University have been invited to Japan in this year.To get the dynamic responses of very large shallow draft vessels in sea waves, two kinds of numerical analyzes have been discussed. The one is ordinary separated region method for rigid rectangular floating body and the other is modified separated region method which includes the hydrodynamic effects due to the elastic deformation of the body. By these numerical results, some interesting phenomena are shown as, hydroelastic responses are significant in case of very large shallow draft vessels in waves.To keep maneuverability and propulsion performance of large shallow draft vessels, twin screw vessels are suitable in general. On the basis of the many experimental tank tests for such hull forms, suitable lines of the vessels were discussed in these joint research works. Small cut up in the center line and large cut up in the side stern is effective lines form for small wake and better course stability of the shallow draft vessels.

为开展横滨国立大学与上海交通大学关于“大型浅吃水船舶开发”的联合研究工作，横滨国立大学的4名研究人员已来华，上海交通大学的2名教授应邀来日为了获得超大型浅吃水船舶在海浪中的动力响应，讨论了两种数值分析方法。一种是用于刚性矩形浮体的普通分离区域法，另一种是改进的分离区域法，其中包括由于浮体弹性变形而产生的水动力效应。通过这些数值结果，显示了一些有趣的现象：对于非常大的浅吃水船舶在波浪中的情况，水弹性响应是显着的。为了保持大型浅吃水船舶的操纵性和推进性能，双螺旋船通常是合适的。在针对此类船体形式进行的多次实验性水池试验的基础上，在这些联合研究工作中讨论了船舶的合适线型。中线小切口和侧尾大切口是浅吃水船舶小尾流和更好航向稳定性的有效线型。

项目成果

M.Arai,L.Y.Cheng & Y.Inoue: "A Computing Method for the Analysis of Water Impact of Arbitrary Shaped Bodies" 日本造船学会論文集. 176. 233-240 (1994)

M.Arai、L.Y.Cheng 和 Y.Inoue：“任意形状物体水影响分析的计算方法”，日本造船学会会刊 176. 233-240 (1994)。

Y.INOUE: "Feasibility Design of a Floating Airpot and Investigation into its Effects on the Environment" J.of the Society of Naval Architects of Japan. 179. 75-81 (1996)

Y.INOUE：“浮动气罐的可行性设计及其对环境影响的调查”日本造船学会杂志。

Y.Inoue: "Dynamic Behaviors of Floating Airport and its Effects on Ocean Current" Proc.Int.Offshore & Polar Engg.Conf.3. 406-413 (1995)

Y.Inoue：“浮动机场的动态行为及其对洋流的影响”Proc.Int.Offshore

Y.INOUE: "Dynamic Behaviors of Floating Airport and its Effects on Ocean Current" Proc.Int.Offshore and Polrr Engg.Conf.3. 406-413 (1995)

Y.INOUE：“浮动机场的动态行为及其对洋流的影响”Proc.Int.Offshore 和 Polrr Engg.Conf.3。

井上義行: "浮体式空港の設計と環境外力の推定に関する検討" 日本造船学会論文集. 179. 75-81 (1996)

Yoshiyuki Inoue：“浮动机场设计研究和外部环境力估计”日本造船学会学报 179. 75-81 (1996)。