潜艇结构的优化设计方法分析

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1、I．哈尔滨T程大学硕十学位论文AbstractSubmarinesplayanimportantroleinmodernnavalpower，andwhetherthenavyequipsstrongsubmarinefleetshasbecameansymbolofgreatpower．AftertheColdWar,lotsofcountriesalthoughhavesloweddownthepaceofthesubmarineconstruction，theyneverstopfocusingondesigningsubmarinesofhighperfor

2、mance．Asanimportantstructureofsubmarine，theweightandsizeofthehullwillgreatlyaffectthespeedandstabilityofthesubmarineoperation．Therefore，pressurehullstructureoptimizationisabasicconditionfortheadvancedperformanceofsubmarines．Inthisthesis，optimaldesignmethodinsubmarinepressurehullisresea

3、rchedaccordingtothetrendofsubmarinesdesign．Basedonthesubsectionoptimizationdesignspirit，thepressurehullwillbedividedintoseveraltypicalstructurestoadoptdifferentoptimizationstrategiesthroughthepressurehulldisplacementandstressfiniteelementanalysis．Twokindsofapproachesforoptimizingring—s

4、tiffenedcircularcylindricalshellarepresented．TheOneiscombiningtheestablishedapproximatedmodelwithMultifunctionalOptimizationSystemTool(MOST)tooptimizethedesign，andtheotheroptimizationistoestablishFORTRANprogramwiththereferenceoftheoreticalformula．Twodesignmethodscanobtainsatisfactoryop

5、timizationresults．TheoptimizationoftheRing-stiffenedcircularconicalshellistousethecombinedmethodoftwodifferenttypesofoptimizationalgorithms．ItnotonlyJ‘speedsuptheprocessofstructuraloptimization，butalsomakestheresultsmorereasonable．HemisphericalShellisdesignedbyusingtheoreticalformulasu

6、ndertheguidanceoffiniteelementanalysis．Varioussectionsareconstitutedaperfectwholeplanethroughtheboundaryconditions，andastrengthandstabilityanalysishavebeencarriedoutfortheweakpartsofthepressurehullensuringthatthe哈尔滨rT程大学硕七学位论文optimizationdesignisfeasibleandsafe．Theweightofthesubmarinep

7、ressurehullisminimizedandtheperformanceofthesubmarinehasincreasedthroughoptimumallocationofthetypicalstructures．Theresearchwillprovidethereferencefortheoptimizationdesignofsubmarinepressurehullinthefuture．Keywords：submarinepressurestructure；typicalstructures；optimizationdesign；optimi