Title of article
OptimizationofanuclearfuelspacergridspringusinghomologyconstraintsOriginalResearchArticle
Author/Authors
M.K.Shin، نويسنده , , H.A.Lee، نويسنده , , J.J.Lee، نويسنده , , K.N.Song، نويسنده , , G.J.Park، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
11
From page
2624
To page
2634
Abstract
Thespringsinaspacergridsupportthefuelrodsinanuclearfuelsystem.Thespacergridispartofthefuelassembly.Sincethespringhasrepeatedcontactwiththefuelrod,frettingwearoccursonthesurfaceofthefuelrod.Designisusuallyperformedtoreducethewearwhilethefunctionsofthespringaremaintained.ThedesignprocessforthespringisdefinedbyusingtheIndependenceAxiomofaxiomaticdesignandthedesigniscarriedoutbasedonthedirectionthatthedesignmatrixindicates.Foradetaileddesign,anoptimizationproblemisformulated.Inoptimization,ahomologousdesignisemployedtoreducethefrettingwear.Thedeformationofastructureiscalledhomologousifagivengeometricalrelationshipholdsforacertainnumberofstructuralpointsbefore,during,andafterthedeformation.Inthiscase,thedeformedshapeofthespringshouldbethesameasthatofthefuelrod.Thisconditionistransformedtoafunctionandconsideredasaconstraintintheoptimizationprocess.Thefrettingwearisexpectedtobereducedduetothehomologyconstraint.Theobjectivefunctionisminimizingthemaximumstresstoallowlocalplasticdeformation.Optimizationresultsshowthatcontactoccursinawiderange.Theresultsareverifiedbynon-linearfiniteelementanalysis.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2008
Journal title
Nuclear Engineering and Design Eslah
Record number
941507
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