高拉速小方坯連鑄二冷溫度與應(yīng)力的數(shù)值分析.pdf

1、重慶大學(xué)碩士學(xué)位論文高拉速小方坯連鑄二冷溫度與應(yīng)力的數(shù)值分析姓名：廖建云申請學(xué)位級別：碩士專業(yè)：鋼鐵冶金指導(dǎo)教師：魏慶成20000601重慶大學(xué)碩士學(xué)位論文摘要ABSTRACTThelighefficiencebilletcontinuouscastingisdevelopingveryfastandalSOit’SoneofOUrcountry’Semphasisattackpmgramersofscienceandtechnolog

2、yin‘‘95”SostudyingandoptimizingthesecondarycoolingsystemisyeryimportantInthispaper，Oilthebasisofcommentsonthepublisheddocumentsandtemperaturemodelofsecondarycoolingtheauthorestablishesthestressmodelofbilletduringthesolid

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4、SedtotransformthebilletconcasterinShaoguanSteelFactorytoimprovethecastingspeedandhavebeengainedsatisfactoryresui乜AISOitcaIlbeUSedtOconducttheproductionandresearchofefficientbilletcontinuouscasting111etemperaturemodelfort

5、heheattransferofbilletincontinuouscastingbelongstoatwodimensionmodelInthismodelthemethodofthecorrectedequivalentspecificheatisintroducedandthechangingtimestepisadopted111ecoolingdifiereneesareconsideredbetweenthesurfaceo

6、finnerradiusandthatofouterradiusofbilletAstheresult，thetemperaturemodelhashigheraccuracyThentheauthorestablishesathermalelasto—plasficCFEP)tressmodelforbilletundertwodimensionalplanestrainconditionTheequationsbetweenstre

7、ssandstrainaregivenforelasticareaplasticareamadtransitiolaalareaofbilletsectionandnewformulaofequivalentplastostrainincrementiSfirstobtainedbydeductionAccordingtothesolidifyingfeaturesofbillet，theauthordevelopsandperfect

8、sthefiniteelementmethodSolvingtheTEPst2“essquestionandaccomplishestheresearchOiltheautomaticnumberingofmeshpointsandlfiangularunitsatvarioussolidifyingstagesofthestrandThestudyshowsthatwhenadoptingchangingbeltwidthstorag

9、eforstiffnessmatrixofwholebody[K】andusingacorrespondingsolvingmethod【L]T【U[L】fortheequilibriumlinearequations，thecalculatingspeedisfastandtheoccupiedmemorycapacityissmall，thusmakingcalculatingforstressquestionusingmicroc