某油船改造為雙舷側(cè)散貨船的直接設(shè)計研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文某油船改造為雙舷側(cè)散貨船的直接設(shè)計研究姓名：申友波申請學(xué)位級別：碩士專業(yè)：工程力學(xué)指導(dǎo)教師：張少雄20091201武漢理’I：大學(xué)碩十學(xué)位論文AbstractAccordingtomarketdemandanddesignspecifications，theconversionofshipusestheoldship，andconvertormodifytheshiptypeAnditsmainadvantage

2、sareitsrelativelylowinvestment，shortconstructioncycleandefficiencysignificantlyTheaccidentsofsinglehulltankersbecameSOfrequentthattheInternationalMaritimeOrganizationhaddevelopedaphaseoutplanaboutsinglehulltankerInrecent

3、years，ithasbecomecommonthatconversethesinglehulltankertobulkcarrierThebasicideaoffiniteelementmethoddiscretestructureandusemanyfiniteelementsofbeinganalyzedeasilytoexpressthecomplicateobject，andapplythefinitenodestointer

4、connectbetweenelements，thenmakeacomprehensivesolutionaccordingtotheconditionsofdeformationthedirectcalculationofhullstructuralstrengthusethefiniteelementmodel，andsimulatetheactualconnectionandloadingcaseofthevariouscompo

5、nentrespectivelybyrod，plate，shellandbeamelementWiththefiniteelementsoftwarewecansolvethedeformationandthestressresultsofvariouscomponentsAtpresentthismethodisanaccurateandperfectmethodralativelyonhullstrengthanalysisAsth

6、ecomplexityofthehullstructureitselfandenvironmentalconditionsthedirectcalculationofhullstructuralstrengthisdividedintotwotypes：thefiniteelementanalysisofmodulemodelandthefiniteelementanalysisoffullshipmodelAtpresent，inth

7、edirectcalculationofhullstructuralstrength，variouscountryhasdevelopedauniquecalculationmethodandstrengthstandard，andwidelyappliedinthepracticalworksItsapplicabilityisverifiedbypracticalworksInthedirectcalculationofhullst

8、ructuralstrength，thereisalargerdifferenceabouttheconcreteregulationamongtheclassificationsocietiesButitisroughlythesameinmaincontentandcalculationprocessAndincludechoosingandestablishingfiniteelementmodel，imposingboundar

9、yconditions，definitingloadingcases，calculatingandimposingload，calculating，andanalyzingresultsInthispaperwi廿lthelargescalefiniteelementsoftwareMSCPatranandMSCNastran，therewilldirectlydesignandresearchthebulkcarrierconvert