review of analysis of tube sheets

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1、ht.J.Pm.Ves.&Piping61(1996)219-297@J1996ElsevierScienceLimitedPrintedinNorthernIreland.AllrightsreservedELSEVIER030&i-0161(95)00026-7030%0161/96/$15.00ReviewofanalysisoftubesheetsV.G.Ukadgaonker,P.A.Kale,Mrs.N.A.Agnihotri&R;ShanmugaBabuDepartmentofMechanicalEngineering,In

2、dianInstituteofTechnology,Powai,Bombay400076,Zndia(Received15January1995;accepted9February1995)Variousdesignmethodshavebeenproposedbyanumberofresearchersforanalyzingstressesanddeflectionsinmultiperforatedplates,popularlyknownastubesheets.Thepurposeofthispaperistoshowthedi

3、fferenttechniquesdevelopedbyvariousresearchersintheanalysisoftubesheets.Athoroughliteraturereviewisundertakenandthedifferenttechniquessuchasanalytical,experimentalandnumericalaredealtwithseparately.Finallytheresultsobtainedbyvariousresearchworkersarecomparedandtheauthors’

4、workisalsomentioned.Thefuturescopeinthisfieldasproposedbytheauthorsisalsodiscussed.NOMENCLATUREcalsolutionforthestressesanddeformationeverywhereinthetubesheetisnotpossiblebutdholediameterapproximatesolutionscanbeobtained.DuringEh3thelastdecademanyauthorshaveproposedD=flex

5、uralrigidityofperforatedplate12(1-Y2)analytical,experimentalornumericaltechniquesD*=ti*h3tosolvethisproblem.Osweillerinhisliteratureflexuralrigidityoftheequivalentreview’concerningthetubesheethasshownthe12(1-Y2)evolutionofequivalentsolidplateconceptoversolidplatefourdecad

6、es.ThepurposeofthepresentpaperisEElasticmodulusoftheplatematerialtostudythedifferentconceptsdevelopedoverE*Elasticmodulusofequivalentplaterecentdecadesbyvariousauthorsintheanalysishplatethicknessofthetubesheet.Ppitchoftheholepattern7(D*/D)X100deflectionefficiencyp[(p-d)/p

7、]X100ligamentefficiencyDefinitionsYPoisson’sratiooftheplatematerialV*Poisson’sratioofequivalentsolidplateHolepattern:theholesinthetubesheetcanbeSubscripts:arrangedasshowninFig.1inthreedifferentAtriangularpitchpatternpatternsvizequilateraltriangular,squareandClsquarepitchp

8、atternstaggeredsquare.Theequilateraltriangularpatternismostwidelyusedsinceitisthemosteffectivepa