杯形砂輪平面磨削溫度場(chǎng)的數(shù)值解析和實(shí)驗(yàn)研究.pdf

1、天津大學(xué)碩士學(xué)位論文杯形砂輪平面磨削溫度場(chǎng)的數(shù)值解析和實(shí)驗(yàn)研究姓名：張建剛申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械制造及其自動(dòng)化指導(dǎo)教師：林彬20030101天津大學(xué)碩士論文ABSTRACTAsahighaccuracy，highrigidity，highefficiencyprocessingmethod，surfacegrindingbycupwheelisbeingutilizedintovariantprocessingfieldBecau

2、sethecontactareaisacurveshape，itstemperaturedistributionismorecomplexthanthatofthetraditionalsurfacegrindingmethodInthispaperthetemperaturefieldofsurfacegrindingbycupwheelhasbeencalculatedandsimulatedbasedonfiniteelement

3、theoryBasedonworkpiece’smaterialpropertiesandoperatingconditions，aconcisedifferentialequationwasproposedinacurvemovingheatingsourceWiththehelpofnonlinearfiniteelementsoftwareANSYS，athree—dimensionalfiniteelementmodelofth

4、etemperaturefieldfortransientstatewassetup，andtheintemaltemperaturefielddistributionwasobtainedTheseresultsmakeitpossibletoanalysesthesurfacegrindingtemperaturefieldbycupwheelIntheactualgrindingprocess，variousfactorsarea

5、ssociatedwitheachotherandhaveacomprehensiveeffectontheprocess，soitisdifficulttofindachiefinnuencingfactortoaspecialprocessingphenomenon，sometimesitisimpossibletofinditoutThispaperusessinglefactorcomparisonmethodtoanalyze

6、everyinfluencingfactorwiththeaidofcomputerscienceandsystemsimulationknowledgeSomeusefulresultsareobtained，whicharehelpfultounderstandthesurfacegrindingtemperaturefieldbycupwheelExperimentalresultsarealsogiventoverifythet

7、heoreticaloutcomeTheworkpiecedeformationandstressconcentrationcausedbynon—uniformtemperaturefieldisafocusproblem，whichispaidmoreattentionbyresearchersInthispaper，thedeformationfieldandthestressfieldoftherectangleworkpiec

8、eandthediskworkpieceisanalyzed，whichprovidesatheoreticalbasisforcontrollingtheworkpiecedeformationandassuringthequalityreliabilityinthegrindingprocessThispaperwillsurelyenrichandwidenthestudyinthefieldofsurfacegrindingby

9、cupwheelFurthermore，itistobeallimportantsenseofdirectiontotheengineeringpracticeAtthesametime，itishelpfultoanalysesotherproblemsemergedinmechanicalprocessingsuchasfacegrindingandfacemillingKeywords：cupwheelsurfacegrindin