某油船改造為雙舷側散貨船的直接設計研究.pdf

1、武漢理工大學碩士學位論文某油船改造為雙舷側散貨船的直接設計研究姓名：申友波申請學位級別：碩士專業(yè)：工程力學指導教師：張少雄20091201武漢理’I：大學碩十學位論文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