风浪流作用下半潜平台水动力及其锚泊系统响应分析  

The Hydrodynamic Response of a Semi-submersible Platform and Its Mooring System Subject to Wind,Wave and Current Loads

作　　者：刘灶 陈超核[1] 

机构地区：[1]华南理工大学土木与交通学院,广州510641

出　　处：《船海工程》2018年第1期75-79,共5页Ship & Ocean Engineering

基　　金：国家自然科学基金(51678249)

摘　　要：针对某半潜平台主体和锚泊系统建立整体水动力模型,基于势流理论,在频域内计算平台在不同浪向下规则波中的水动力及其运动响应;在时域中计算张紧式系泊系统在风、浪、流联合作用下的非线性耦合运动响应,与悬链线系泊系统进行对比分析,结果表明,该半潜平台在高频范围内运动性能良好;深水环境中采用张紧式系泊要比悬链线系泊有优势。The hydrodynamic model,including the main body of a semi-submersible platform and its mooring system,was established based on the parameters of a semi-submersible platform. Based on the potential flow theory,the frequency-domain analysis method was used to calculate the hydrodynamic performance and the motion response of this platform in different wave direction. The time-domain analysis method was used to analyze the nonlinear coupling motion between this semi-submersible platform and its tensioned mooring system under a complex condition with wind,wave and current loadings,which were compared with catenary mooring. The results showed that this platform has a good motion performance in high frequency range,so that the tensioned mooring system is better than the catenary.

关 键 词：半潜平台 频域运动响应 耦合模型 时域非线性响应 张紧式系泊 

分 类 号：U661.3[交通运输工程—船舶及航道工程]