鋼包滑動水口CAE分析.pdf

1、武漢科技大學碩士學位論文鋼包滑動水口CAE分析姓名：曾鋒申請學位級別：碩士專業(yè)：機械電子工程指導教師：羅會信20100425第1I頁武漢科技大學碩士學位論文AbstractWiththerapiddevelopmentofcomputertechnologyandimprovementoffiniteelementanalysissoftware，CAEtechnologyhasbeenwidelyusedinengineeringIn

2、thedesignofmetallurgicalequipment，someproblemsoftheequipmentsuchasthestrengthandstiffnesscanbeaccuratelyanalyzedwithCAEtechnologywhichcanprovideimportantinformationforthedesignofthestructmeSlidinggateisallimportantpartof

3、theladle，whichisasecuritystableandreliableequipmentandtailpourthehiIghtemperaturemoltensteeloftheladleintothemiddlepackageItisdirectlyconnectedwiththeoperationofcontinuouscastingsteel，andthelevelofitsservicelifethequalit

4、yofitsserviceeffect，whichhaveanimportantimpactonthecontinuouscastingproductionThethesiscomesfromproductionpractice，reliesonsystemCAEtechnologybasesontheuseofheattransferknowledgeandcoupledthermalstressanalysistheoryThetr

5、ansienttemperaturefieldandthermalstressfieldoftheslidinggateofladleduringthecontinuouscastingatesimulatedwiththesoftwareANSYS111eresultsshowthat：1)Intheprocessofcastingthetemperatureofthedownslidingplateisgraduallyspread

6、私thecenterhole，thecloserdistanceofthecastinghole，thegreaterthetemperaturegradientAndintheverticaldirection，thetemperaturechangeisgreaterthanthehorizontaldirectionThetemperaturegradientofthedownnozzlehassignificantlystrat

7、ificationintheradialdirection，butintheaxialdirectionwhichislargeattheregionfromthebottomtotheneckwall2)Intheprocessofcastingthereisacompressivestressareaaroundthecastinginnerholeofthedownslidingplate，tensilestresshasarin

8、gdistributionaroundthecastingholeInthekeypointsofhorizontaldirection，thefirstprincipalstressofkeypointBhasamaximumvalueof3791MPaandinthekeypointsofverticaldirection，thefirstprincipalstressofkeypointIreachesamaximumvalueo

9、f4846MPaatcastingtimeof300sTherefore，reducingtheverticalpositionofthermalstressisalsoimportantwhilereducingthehorizontalpositionofthermalstressofthedownslidingplateThetransientfirstprincipalstressofthedownnozzledecreases

10、inradialdirectionwhilechangeslittleinaxialdirectionAndthestressseal“theregionattheneckpartofkeypointEchangesgreatly3)Differentpressureloadswhichareimposedbythediscspringofslidinggatemechanismhaveverylittleeffectonthermal

11、stress，whichCannotbeconsidered4)SystemCAEtechnologyCallbeusedtosimulatethecomplexmodelingofmetallurgicalequipmentandcalculateindifferent10adconditionstoobtaintheoverallperformanceoftheanalyzingobject，whichCanproviderefer