斜坡海底条件下锚泊渔船水动力响应研究  

Hydrodynamic Response of a Fishing Vessel Moored over Sloping Bottom

作　　者：赵新颖[1,2] 张彬 刘和炜[1,2] 刘晓雷 汤景春 ZHAO Xinying;ZHANG Bin;LIU Hewei;LIU Xiaolei;TANG Jingchun(Fishery Machinery and Instrument Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200092,China;Joint Research Laboratory for Deep Blue Fishery Engineering Equipment Technology,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China;College of Ocean Science and Engineering,Shanghai Maritime University,Shanghai 201306,China;SDIC Jiangsu Renewables Limited,Nanjing 210017,China)

机构地区：[1]中国水产科学研究院渔业机械仪器研究所,上海200092 [2]青岛海洋科学与技术国家试点实验室深蓝渔业工程联合实验室,青岛266237 [3]上海海事大学海洋科学与工程学院,上海201306 [4]国投江苏新能源有限公司,南京210017

出　　处：《中国造船》2022年第3期61-72,共12页Shipbuilding of China

摘　　要：避风锚泊是大中型渔船防台风的主要方式。避风锚地位于近岸区域,海底大多不平坦,然而传统的水动力计算方法和相关软件是基于平坦海底的假设建立的。为了对斜坡海底条件下锚泊的渔船水动力响应进行准确分析,论文基于SAM-RSM模型开发了计算程序,使用台阶近似法考察海底地形对入射波浪的散射作用,应用Rankine源方法求解不平坦海底条件下渔船在固定状态以及运动状态时诱导的绕射和辐射速度势。计算结果表明,不平坦的海底地形对锚泊渔船低频垂荡和艏摇运动RAO的影响显著。研究成果可为渔船锚泊位置的选择提供参考。For large or medium fishing vessels, mooring in the anchorage station is a proper solution to avoid damage by typhoons. The anchorage station is in a nearshore area where sea bottom is usually uneven.However, traditional hydrodynamic analysis and corresponding commercial software are based on the flat-bottom assumption and are not able to predict the hydrodynamic disturbance on floating bodies due to the uneven bottom. In this paper, the SAM-RSM model is adopted and corresponding codes are developed. The scattering effect of slope on the incident wave is considered, while diffraction and radiation potentials are obtained by the Rankine source method. It is concluded that the uneven bottom has significant influence on the heave and yaw motion RAOs in the low wave frequency range, which could provide a reference for selection of mooring positions for fishing vessels.

关 键 词：避风锚地 渔船 不平坦海底 运动RAO 

分 类 号：U661.1[交通运输工程—船舶及航道工程]