超大型集装箱船结构强度规范校核及有限元分析

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2、jii『7分类号：——UDC：——密级；——编号：——工学硕士学位论文超大型集装箱船结构强度规范校核及有限元分析硕士研究生：初艳玲指导教师：徐玉如教授温保华高级工程师学位级别：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：2007年11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T程大学硕十学位论文AbstractWiththedevelopmentofeconomicglobalizationandthegrowthofworldtrade，containerizationofeachcou

3、ntryisbecomingintensiveandlarge—sizeandtheULCSisneededurgentlyintheworldmarket．Thispaperwillstudykeystructuretechnologyof9618TEUcontainershiponthebasisofULCSwhichisbeingdevelopedbyMARIC．Thegoalistodeveloptheself-determinationtechniquewhichitisalsousefulforourcountrytostrengthenourbuildingp

4、owerandimprovethedesignability．DuetoULCS’Scharacteristicofbigopen，highspeed,highrequestonstability,largedeformationsofhatchcomerandhighproportionuseonhigh—tensilesteel，hullgirderandfatiguestrengthareveryimportanttoULCS．Asto9618TEUULCS，thetransverseopenscaleisnearto90％．Thereforeonlyconsider

5、ingtheverticalhullgirderforcecomponentisnotsufficienttodecidetherequiredhullgirderstrength．Thebendingmomentofstillwater,thetorsioninducedbycargoandunsymmetricaltankarrangement，wavetorsioninducedbyobliquewaveencounterandthehorizontalbendingmomentsshouldbealsoincludedinthehullgirderstrengthc

6、alculation．First，DNVsoftwareisusedtodorulecalculationformidshipsectioninthispaper,andwecanresizedimensionproperlythroughcarefulcomparisontogainamoreeconomicaloptimizationstnlctLIre．Second，FEA(f'miteelementanalysis)isusedtodocargoholdanalysisaccordingtotheruleandtoverifywhetherthetransverse

7、membersCansatisfytheyieldandbucklingstandardandthedesignandmaterialCanbereasonable．Then，globalhullanalysisisdonetofindthedistributionofhullgirderstressandthehi曲stressareaswhichbeardynamicloads．Theresultscallprovideboundaryconditionforfinemeshelementanalysis，anditisalsothebasisoffatigueasse

8、ssment．Finally,fatigueassessmentforthetypicallongitudinalframeconnectionsisdonetotestwhetherthestructurehas哈尔滨下程大学硕十学位论文enoughfatiguestrengthandfatiguelife．Keywords：ULCS，High—tensilesteel，finiteelementanalysis，fatiguestrength,fatiguelife哈尔滨工程大学学位论文原创性声明本人郑重声明：