船體線型優(yōu)化設(shè)計(jì)方法及最小阻力船型研究.pdf

1、大連理工大學(xué)博士學(xué)位論文船體線型優(yōu)化設(shè)計(jì)方法及最小阻力船型研究姓名：張寶吉申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：船舶與海洋結(jié)構(gòu)物設(shè)計(jì)制造指導(dǎo)教師：馬坤20090601船體線型優(yōu)化設(shè)計(jì)方法及最小阻力船型研究ResearchonOptimizationDesignofHullLinesandMinimumResistanceHullFormResistancermAbstractUnderspecifiedrequirementsofdeadweight

2、aswellasdesignconditiontheprocedureofdeterminingtheoptimalhullfromwhichinvolvessomeimportantpropertiessuchaSrapiditymaneuverabilityandseakeepingisveryimportantbutalsocomplicated，nledesigner’Sfirstpriorityistodeterminingt

3、hehullformwiththeleastresistancenemethodsusedcurrentlywhichinvolvethereferenceofthebaSicship，theexperienceofdesignerandshipmodeltrialnotonlytakemuchtimeandcostbutalsoarerestrictedAsthedevelopmentofhydromechanicsandthecom

4、puterscience，theoptimizeddesignmethodofshiplinesbaSedonthetheoryofhydromechanicshasgraduallybecomepracticalThenewtechnologyhasbeenusedinproductionbyKoreaJapanandotherEuropeancountrieswhilethetraditionalmethodbasedonthede

5、signer’SexperienceismainlyusedinChinaNowadays，thoughChina’Sproductioncapacityisinthefrontranksoftheworld，thetechnologyweusedlagsbehindItisurgenttoresearchtheoptimalmethodwhichcouldrapidlyproduceshiplineswiththeleaStresis

6、tanceanddevelopourownSOJbvvareofshiplinesoptimaldesigntoimprove0111“competitivenessinworldmarketandtheresearchproductivityinourshipbuildingenterprisesDuetotheurgentrequirementstatedabove殤earticleisdedicatedtoinvestigatet

7、hemethodwhichcouldrapidlyproduceshiplineswiththeleaStresistanceandtodevelopOUrownsoftwareofshiplinesoptimaldesignTheobjectsoptimizedincludestem，forwardbowandthehullformunderthewaterlineataftsternThearticlechoosesFortran船

8、programminglanguage，Tecplot必thesoftwareofpostprocessing，AutoCadasthedisplaytool，usingthecombinationofpotentialflow，viscositytheoryandoptimizationtechniquesaswellasCAD，todevelopthesoftwareofshiplinesoptimaldesignThereduct

9、ionofthewave—makingresistanceisthemainpurposeinprocedureofoptimalcalculationConsideringtheeffectofviscosityseparationatstern，thewavemakingresistanceiscalculatedusingMichellintegralmethodandRankinemethodandcombinedviscosi

10、tyseparationtoevaluatetheincreaseofviscosityresistanceTheoffsetsareexpressedbytheoffsetsofbasicshipandhullformmodificationfunctionThearticlechoosesthe仃aditionaloptimalmethod—nonlinearprogrammingmethodandintelligentoptima