SHIPENGINEERING船舶工程Vol.45No.12023总第45卷,2023年第1期—160—新型圆筒型FPSO运动抑制结构的优化设计陈维1,李清2,栗铭鑫1,陈林烽1,白旭1,李永正1(1.江苏科技大学船舶与海洋工程学院,江苏镇江212100;2.上海外高桥造船海洋工程有限公司,上海200131)摘要:针对圆筒型浮式生产储卸油装置(FPSO)垂荡运动性能较差等问题,设计具有通海形式的延伸筒体与减动结构的新型圆筒型FPSO。通过建立水动力分析模型,对不同运动抑制结构模型的垂荡与纵摇的固有周期和运动响应幅值算子(RAO)进行数值计算,对运动抑制结构型式的延伸筒体和阻尼孔进行优化设计。在时域耦合分析中,结合我国南海环境,通过设计合理的系泊系统,得到新型圆筒型FPSO的运动的响应历程,并对系泊系统进行安全校核。结果表明,延伸筒体高15m、阻尼孔直径1.0m为优化后的构型,该构型能节约成本、满足项目设计要求以及南海百年一遇的生存工况。关键词:新型圆筒型FPSO;运动抑制结构;延伸筒体;阻尼孔;优化设计中图分类号:P751文献标志码:A【DOI】10.13788/j.cnki.cbgc.2023.01.24OptimalDesignofNewCylindricalFPSOMotionSuppressionStructureCHENWei1,LIQing2,LIMingxin1,CHENLinfeng1,BAIXu1,LIYongzheng1(1.SchoolofNavalArchitectureandOceanEngineering,JiangsuUniversityofScienceandTechnology,Zhenjiang212000,Jiangsu,China;2.ShanghaiWaigaoqiaoShipbuildingCo.,Ltd.,Shanghai200131,China)Abstract:Aimingattheproblemofpoorheaveperformanceofcylindricalfloatingproductionstorageandoffloading(FPSO),anewcylindricalFPSOwithafree-floodingextendedcylinderanddampingstructureisdesigned.Throughtheestablishmentofhydrodynamicmodel,thenaturalperiodandresponseamplitudeoperator(RAO)ofheaveandpitchwithdifferentsuppressionstructuremodelsarenumericallycalculated,andtheextendedcylinderanddampingholeofsuppressionstructuretypeareoptimized.Inthetime-domainanalysis,theenvironmentoftheSouthChinaSeaisconsidered.Basedonthedesignofthemooringsystem,combinedwiththeSouthChinaSeaenvironment,theresponsehistoryofthenewcylindricalFPSOisobtainedbydesigningareasonablemooringsystem,andthesafetyofthemooringsystemischecked.Theresultsshowthattheheightoftheextensioncylinderis15mandthediameterofthedampingholeis1.0m,which...