Dynamic Analysis of Turret-Moored FPSO System in Freak Wave-中国Betway体育网页登陆

摘要 Freakwaveisthecommonwavewhichhassignificantwaveheightandirregularwaveshape,anditiseasytodamageoffshorestructureextremely.TheFPSOs(FloatingProductionStorageandOffloading)sufferfromtheenvironmentloads,includingthefreakwave.Thefreakwavesweregeneratedbasedontheimprovedphasemodulationmodel,andthecouplingmodelofFPSO-SPM(SinglePointMooring)wasestablishedbyconsideringinternal-turretFPSOanditsmooringsystem.ThedynamicresponsecharacteristicsofbothFPSOandSPMaffectedbythefreakwavewereanalyzedinthetimedomain.Accordingtotheresults,thefreakwavesgeneratedbyoriginalphasemodulationmodelmainlyaffectthe2nd-orderwaveloads.However,thefreakwaveswhicharegeneratedbyrandomfrequenciesphasemodulationmodelaffectboth1st-orderand2nd-orderwaveloadsonFPSO.Whatismore,comparedwiththeirregularwaves,thedynamicresponsesofmooringsystemarelargerinthefreakwaves,butitsamplitudelagsbehindthepeakofthefreakwave.

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Dynamic Analysis of Turret-Moored FPSO System in Freak Wave

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