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1、1007-7294(2011)09-0996-09ParametricStudyofGlobalResponseBehaviorofDeepwaterFreeStandingHybridRisersCHENHai-feiXUSi-pengGUOHai-yanCollegeofEngineering,OceanUniversityofChina,Qingdao266100,ChinaAbstract:Freestandinghybridriser,asanenablingtechnologyfordeepfielddevelopments,hasacquiredinc
2、reasingattentionworldwide.Inthispaper,aparametricstudyofasinglelinehybridriserisconducted,usinganin-houseFEMcodewhichcanhandlegeometricnonlinearityefficiently,toexamineitsglobalresponsebehavior.Theeffectsofvaryingparameters-buoyancytankdepth,jumperlength,tankdiameterandtanklength,onhyb
3、ridriser'sstaticequilibriumprofileareinvestigatedundertheactionofcurrent.Dynamicanalysesofthehybridriserundervesselharmonicsurgeandregularwavearealsoperformedandtheresultsobtainedconfirmedthequasi-staticnatureofthehybridriser.Whenthebuoyancytankislocatedatarequireddepth,thetankmotionin
4、ducedbyvesselsurgeandwaveloadsisexpectedtobesosmallthatithasnegligibleinfluenceonthejumper'sdynamicanalysis.freestandinghybridriser;elasticrodmodel;parametricstudy;staticanalysisTE973.92A2010-07-182010-11-30SupportedbytheNationalHigh-TechResearchandDevelopmentProgramofChina(GrantNo.201
5、0AA09Z303),theKeyProjectofNationalNaturalScienceFoundationofChina(GrantNo.50739004),andtheNationalNaturalScienceFoundationofChina(GrantNo.11002135)CHENHai-fei(1986-),male,masterstudentofOceanUniversityofChina;XUSi-peng(1976-),male,Ph.D.,lecturer.997998999100010011002@@[1]HattonS,Howell
6、sH.Catenaryandhybridrisersfordeepwaterlocationsworldwide[C]//AdvancesinRiserTechnologies.Aberdeen,1996.@@[2]ThiébaudF,AlliotV,HattonS.InnovativehybridriserconceptforFPSO's[C]//AdvancesinRiserTechnologies.Singapore,1998.@@[3]HattonS,LimF,LuffrumS.Hybridriserfoundationdesignandoptimizati
7、on[C]//ProceedingsOTCOffshoreTechnologyConference,Paperl7199.Houston,2005.@@[4]HattonS,LimF.Thirdgenerationdeepwaterhybridrisers[C]//WorldWideDeepwaterTechnologiesConference.London,1999.@@[5]WuM,Saint-MarcouxJF,JacobP,BirchV.ThedynamicsofflexiblejumpersconnectingaturretmooredFPSOtoah