深水半潜式平台系泊系统设计研究

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1、分类号：——UDC：——密级：编号：工学硕士学位论文深水半潜式平台系泊系统设计研究硕士研究生：白雪平指导教师：聂武教授学位级别：工学硕士学科、专业：船舶与海洋结构物设计制造所在单位：船舶工程学院论文提交日期：2008年1月论文答辩日期：2008年1月学位授予单位：哈尔滨工程大学哈尔滨下程大学硕士学位论文ABSTRACTOceancontainsabundantrichresources．whereoil&gasproductionhasbeenexploredfordecades．Forinstance，MexicoofGulf,WestBay，BrazilSea，Chin

2、a’SBohaiSea,EastChinaSeaandSouthChinaSeaareregardedassignificantproductionfieldsinacademicresearchesandpracticaloperations．Nowadays，theexplorationandproductionofoil&gasintendtodeepersea、衍th1000～3000mdepthsinMexicoGulf,Brazil，WestAfrica,NorthAtlanticandNorwegianSea．Today，deepseaplatformsfor

3、drillingandproductionarejustgettingstarted．Wearefacingthefiercecompetitiontoexploredeepsearesources，whichbelongstothehumanbeings．ItforcesUStoPaymoreattentiontothetechnologyandresearchesofdeepseaplatforms．Now，semisubmersibleisanadvancedoperatingplatformwhichsuitsforthedeeperwater．Itnotonlyc

4、anovercometheinstabilityofthedrillingvessels，butalsocanoperateinthedeeperwater．Itisnecessarytodesignthemooringsystemforthismarinedevelopmentandtransportt001．Inordertoguaranteesemi—submersibleCanbeworkunderthenormaloperateinthemajorityofseaconditionsandthesafetyintheadverseseaconditions．Iti

5、sparticularlyimportanttoanalysethehydrodynamicandmotionperformanceofsemi—submersibleintheactionofthewind，waveandcurrentandreasonabledesignthemooringsystemofthesemi—submersibleInthisthesis，SESAMsoftwareisused，whichbasedonthree—dimensionalpotentialtheoryandMorisonformula．Theaddedmasscoeffici

6、entsanddampingcoefficientsofsemisubmersibleinducedbytheregularwavearecalculatedbYSESAMsoftware．Theforcesandmotionsofthesemi—submersibleinducedbywavearecalculatedintheregularwave，andanalysethemooringsystem，whichhave8and12cablestopositionalsostudied．哈尔滨工程大学硕士学位论文Thenumericalanalysisofenviron

7、mentalloadsandmotionsinaccordancewithAPIrules，andthewavedriftforcesarecalculatedusingspectralanalysismethod．Andthen，Mimosasoftware，whichbasedonstaticanalysisanddynamicanalysistoanalysetwoplansofthemooringsystem．Finally，theresultsofthetwoplansarecomparedandgive