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深水半潜式平台运动响应及截面波浪载荷模型实验研究（英文）.docx

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深水半潜式平台运动响应及截面波浪载荷模型实验研究（英文） Title:ExperimentalStudyonMotionResponseandCross-waveLoadsofDeep-waterSemi-submersiblePlatform Abstract: Thispaperpresentsanexperimentalstudyofthemotionresponseandcross-waveloadsofadeep-watersemi-submersibleplatform.Inthisstudy,a1:50scaledmodeloftheplatformwastestedinawavetankundervariouswaveconditions.Themotionresponseoftheplatformwasmeasuredusinga6-degreeoffreedommotionanalysissystem,whilethecross-waveloadsweremeasuredusinga6-componentloadcell. Theresultsofthestudyshowedthatthemotionresponseoftheplatformwassignificantlyaffectedbythewaveconditions,andtheplatformexhibitedlargeheave,roll,andpitchmotions.Thenaturalperiodsoftheplatformwerealsoidentified,whichwerefoundtobedifferentfordifferentdegreesoffreedom.Thecross-waveloadsontheplatformwerealsofoundtobehighlydependentonthewaveconditionsandthepositionoftheplatforminthewave. Inordertopredictthemotionresponseandcross-waveloadsinmorecomplicatedwaveconditions,anumericalsimulationusingthecommercialsoftwareANSYSwasalsoconducted.Acomparisonbetweentheexperimentalandnumericalresultsshowedgoodagreement,indicatingthereliabilityoftheexperimentalresults. Overall,thisstudyprovidesvaluableinformationforthedesignandoperationofdeep-watersemi-submersibleplatforms,andhighlightstheimportanceofconsideringthewaveconditionsandplatformpositionwhenpredictingmotionresponseandloads. Keywords:deep-watersemi-submersibleplatform,motionresponse,cross-waveloads,experimentalstudy,numericalsimulation Introduction: Deep-watersemi-submersibleplatformsarewidelyusedintheoffshoreoilandgasindustryfordrilling,production,andstorage.Theseplatformsaredesignedtooperateinharshmarineenvironments,wheretheyaresubjectedtocomplexcross-waveloadsandwavesofdifferentmagnitudesanddirections.Therefore,itisessentialtounderstandandpredictthemotionresponseandloadsoftheplatforminordertoensuresafeandefficientoffshoreoperations. Inthisstudy,a1:50scaledmodelofadeep-watersemi-submersibleplatformwastestedinawavetank,andthemotionresponseandcross-waveloads