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1、分類號UDC研究生學位論文研究蛐名型嗌送擁蝴燃塞l徨燃申請學蚴刪亟專業(yè)名|I丞趔王程論煳日期幽生曼旦旦學懈日期生旦中國海洋大學極端海況錦州JZ202平臺的風險評估ExtremeOffshoreEnvironmentJinzhouJZ20—2PlatformRiskAssessmentAbstractJ曲e白servicereliabilityanalysisandsafetyevaluation(riskassessment)ofoff

2、shoreplatformstructuresareveryimportanttoensuringthesafetyinexploitationofoceanresources,forthestructureshavesevereenvironmentfieldandseriousfailureconsequenceInthisdissertationasallexampleofJinzhouJZ20一2offshoreplatform

3、,thesystemreliabilityanalysisandsafetyevaluation(riskassessment)aremonographicstudiedFistlytheresearchconditionofreliabilityanalysisofoffshorestructureswasintroducedbrieflyandthenthereliabilityanalysisandsafetyassessment

4、(riskassessment)ofo任moreplatformstructuralcomponentsandsystomareprovidbasedonitSecondlytheextremejointprobabilisticdistributionofwindspeedandwaveheightinBohaibayJinzhouJZ202oilfieldisobtainedbyemployingthemultivariableex

5、tremevalueanalysistheorymethodanduncertaintyandsensitivityanalysistechniquesAndthentheprobabilisticdistributionofstructuralresponsetowindandwaveisobtainedforanalysisofstructuralreliabilityThirdl%calculationalmethodofreli

6、abilityanalysisofoffshoreplatformstructuralcomponentswasdevelopedbyadoptingthecalculationalmodelofwind,wave,currentandiceintheAPIspecification060iRP2A—LRFD)andbyuncertaintyandsensitivityanalysistechniquesConsideringofthe

7、deviationdistributionoftheofrshoreenvironmentequivalentnormalmethodwasintroducedintothereliabilityanalysisofoffshoreplatformstructuralcomponentsmoreoverthereliabilityanalysisofJirmhouJZ202oitshoreplatformstructuralcompon

8、entswastalculatedtherefore血eresultofriskassessmentoftheplatformstructuralcomponentswasobtaintedFourthlybasedonthereadymadespecialstructuralanalysisprogramforoffshoreplatforms,premisedusingthestructuralbaseshearforce(BSF)

9、orbaseOverturnMoment(OTM)toexpressthefunctionofstructuralsystemfimction,threestructuralsystemreliabilityanalysismethods,SamplingStatisticMethod,EquivalentLoadMethodandTotalProbabilityMethod,areputforwardaccordingtothecha

10、racteristicsofoffshoreplatformstructIlresandtheirenvironmentalactionAndthenthesystemreliabilitiesofJinzhouJZ20—2platformstructureareanalyzedTheeffectsofresistancerandomnessandloaddependenceonthesystemreliabilitywerecompa

11、redFinallyaccordingtotheresultsoftheanalysisandcalculationthemethodsofreliabilitiesanalysisandevaluation(riskassessment)ofoffshoreplatformstructuralcomponentsandsystemweredeveloped,andsomerelevantproblemsandsuggestionsin

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