基于ansys有限元的拱坝智能优化设计分析

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1、华北电力大学硕士学位论文AbstractThearchdamlSacomplexspatialshellstructureandfamousforthereasonablestructureandbeautifulshape．itmakesfulluseofthestrengthofthebuldingmaterialsandsavesalotofquantities，SOitisregardedasoneofthepreferreddam．Butthedesignmethodofarchdamismorecomplex，andthedamshapehasallimportantimpac

2、tonthesecurityandstabilityofthearchdam，SOthispaperproposestheintelligentoptimizationofarchdambasedonANSYSfiniteelement．Firstofall，thispaperdescribesthearchdam’Sbackgroundandimplicationsforresearchaswellastheoptimizationmethodusedathomeandabroad．Nowadays，theshapeoptimizationofarchdamoccupiesanimpor

3、tantpositioninstructuraldesign．Itisanimportantpartofdesignandmanufacturing，andthestaffCanobtainamorecompleteandrationaldesignfromanumberofprograms．Inrecentdecades，av撕etyofoptimizationmethodshavebeenproposedbyscholarsandbeenwidelyusedfortheoptimizationofarchdam，anditmakesremarkableachievements．Acco

4、rdingtothecharactoristicsofthearchdam’Sstress，weshouldtakethetwoaspectsintoconsiderationduringthearchdamdesign，Ontheonehand，combinedwiththeactualsituationofnotensileoftheconcrete，weshouldminimizetensilestressofthedam，andmakethecompressivestressmoreuniforlTl，andthenmaketheloadtransfertoabutmentthro

5、ughthearch；ontheotherhand，theabutment’Sthrustshouldtrytopasstothetwosidesofthemountaintoenhancetheslidingstabilityofskewbackandreducetherockdeformation．Generallyspeaking，threeessentialfactors，thestressofarchdam，thestabilityofabutmentandthecostofarchdam，mustbeconsidered．Secondly,Onthebasisofthefini

6、teelementanalysissoftwareANSYS，thepaperproposesthemodelingandstuctureanlysismethodofarchdambasedonparametricdesignlanguageAPDL．ArchdamparametersautomaticallyreadingandsolidmodelingiscreatedbytheprgrammingofANSYSparametricdesignlanguageAPDL．Itgreatllyreducestherepeatedtimecosumedinconventionaldesig

7、nprocessandthemodificationismoresimpleandefficient．Finally,theauthortakesarchdam’Sgeometricalcharacteristicsasdesignvariables，andtakesthedam’Svolumeandthedam’Sstressassingle-objectiverespectivelytoestablishoptimi