半潜式试验平台性能及建造安装分析

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1、浙江大学硕士学位论文AbstractEnergyisanimportantr雌ourcefortheprogressanddevelopmentofhumanbeings．Witllthecontinuousexploitationofdeepspaoilandgasresources，moreandmoreattentionshavebeenpaidtotherelatedplatformtechnology．Semi-submersibleplatformhasbeenwidelyusedbecauseofit

2、sadvantages，suchaSlargevariableload、strongwindresistance、adaptationtoawiderangeofwaterdepthandetc．Soitisofimportantsignificancetodothecomprehensiveanalysisofhydrodynamicperformanceofthesemi—submersibleplatformanditsmooringsystem,舔wellastheresearchoftheplatform

3、structuralstrength．，nleresultsCanprovideaDDferenceforthedesignoptimizationoftheplatform．ThispaperselectsasmallSellli—submersibletestplatformforstudy,anditshydrodynamicperformanceandstructuralstrengthwereanalyzed．nemainworkincludesthefollowingaspects：(1)Semi—su

4、bmersibletestplatformdetailsAsthefnstsmallsemi—submersibleplatformonlyforscientificexperiments,thispapermadeadetailedpresentationforitsoveralldesign,thebasiclayoutandengineeringenvironment；(2)Analysisofhydrodynamicperformanceofthese'lni—submersibletestplatform

5、anditsmooringsystemAccordingtothethree-dimensionalpotentialflowtheory,hydrodynamicperformanceofthesemi—submersibletestplatformanditsmootingsystemarecomprehensivelyanalyzedbyusingoftheANSYS-AQWAsoftwareinthispaper．，nlercspOILSeamplitudeoperator(RAO)ofmotionsinv

6、ariousfrequencyandwavedirectionsiscalculatedfirstonl臣equcncydomain．Thus，adatabaseoffrequencydomainhydrodynamicparametersisbuiltup．Thenthetimedomaincouplednumericalsimulationofthetestplatformanditsmooringsystemarecarriedoutinbothoperatingandsurvivalseacondition

7、s，inordertoobtainthemotion托：spoI娼龉insixdegreeoffru湖omandthetensionsofmooringsystem,船wellastheanchorsitua缸on．Meanwhile，sensitivityanalysesofvariousparametersinthetestplatformareconducted．Theplatformmotionresponsevariationsareexploredbychangingthecenterofgravity

8、钱淼华：半潜式试验平台性能及建造安装分析一v-塑兰查芏堡主兰堡垒茎垒!竺!塑‘。’。‘。。。。。。。—。。。‘‘‘‘‘。。。。--________________________________-______I_-·-_-．_-_________________-——I-___--—．————————————————————一。’．：二heightofthe