鑄件凝固過程三維溫度場數(shù)值模擬軟件的開發(fā)與應(yīng)用.pdf

1、東北大學(xué)碩士學(xué)位論文鑄件凝固過程三維溫度場數(shù)值模擬軟件的開發(fā)與應(yīng)用姓名：李東輝申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料加工指導(dǎo)教師：辛啟斌2000.3.1查苧查蘭三堂塑主蘭絲堡苧～一——ABSTRACTInthispaper，Asoftwaresystemforthree—dimensionaltemperaturefieldnumericalsimulationofsolidificationofcastingshasbeendevelopedi

2、nAutoCADRI4byusingC十languageThesystemconsistsofthreemainmodules，namely，thepre—processor，thecentralsimulationfortemperaturefieldandthepost—processorInaddition，itiseasytoUSeandcanbeappliedbyvariouscastingsApracticalsystemf

3、orthree—dimensionalsolidmodelingandautomaticfinitedifferencemeshsubdivisionwasdevelopedAnewautomaticmeshmodelgenerationformultiplematerialsbasedAutoCADthree—dimensionalcomputer—aidedsolidconstructionwassuggested，whichcan

4、performsmodelgenerationofcomplexcastingsBasedontheenergyequation，thenumericalmodelfortemperaturefieldcalculationhasbeenderivedbyusingthefinitedifferencemethodAsetofnumericalsimulationSOftwareforthree—dimensionalheattrans

5、ferofmoltenmetalhasbeendevelopedsuccessfully，whichisapplicabletotreatthecomplicateshapeofcastingsByusingMATLAB51programtechnology，thepost—processingprogramofcalculatedresulthasbeendevelopedThechangeoftemperatureinanysect

6、ionofcastingscanbeendisplayedbyusingpalettewith256colorsItcanmadethepostprocessinggraphcolortransitionsmoothly，andlaidabasisforsimulatingthetemperaturedistributionaccuratelyInaddition，themethodforshowing3D—temperaturefie