系泊浮箱运动稳定性影响因素分析  

Impact factor analysis of motion stability of buoyancy tank mooring system

作　　者：罗若 刘祚秋[1] 彭泽宇 LUO Ruo;LIU Zuo-qiu;PENG Ze-yu(College of Engineering,Sun Yat-sen University,Guangzhou 510006,China;Jiangsu Sinoroad Engineering Research Institute,Nanjing 211800,China)

机构地区：[1]中山大学工学院应用力学与工程学系,广东广州510006 [2]江苏中路工程技术研究院有限公司,江苏南京211800

出　　处：《水运工程》2018年第9期42-48,90,共8页Port & Waterway Engineering

摘　　要：对于水上系泊系统,系泊方式对于整个系泊系统的系泊力和运动精度有着非常重要的影响,有必要分析不同系泊方式对系泊系统运动性能和系泊缆动力性能的影响,揭示系泊方式对系泊系统的作用和影响机理。基于势流理论,结合大型水动力学软件AQWA,以一种简单的矩形浮箱式结构物为典型示例,根据浮箱基本参数及相关技术要求,考虑系泊半径、预张力、张开角度等影响系泊性能的主要因素,建立系泊系统动力分析计算模型。分析结果表明:随着缆绳系泊半径的增加,系泊半径对最大系泊力的影响逐渐减少;增加系泊缆的预张力能够有效减少浮体纵荡偏移,提高系泊系统工作的稳定性;增加系泊缆张开角度能够更好地抵抗横向环境载荷,提高平台定位能力。For water mooring system,mooring pattern has very important influence on the mooring force and motion precision of the mooring system,so it is necessary to analyze different mooring methods on mooring system movement performance and the influence of the mooring cable dynamic performance to reveal the effect and mechanism of mooring pattern on mooring system.Based on the potential flow theory,combined with the large water dynamics software AQWA,with a simple rectangular pontoon structures as the typical example,based on the basic tank parameters and related technical requirements,considering the main factors influencing the mooring performance such as mooring radius,the pretension and the opening angle,the dynamic analysis and calculation model of mooring system is established.The results show that the influence of mooring radius on maximum mooring force decreases with the increase of mooring radius.Increasing the pretension of mooring cable can effectively reduce the longitudinal drift of floating body and improve the stability of mooring system.Increasing the opening angle of mooring cable can better resist the lateral environment load and improve the platform positioning ability.

关 键 词：系泊方式 系泊系统 浮箱 水动力分析 

分 类 号：U656.6[交通运输工程—港口、海岸及近海工程]