鋼-銅-塑三層復合材料端面摩擦條件下的溫度場研究.pdf

1、1054t00女女：——單位代碼：—地量墨L學號：∞∞嗆Lu哪肥工學大UniversityofTechno警Iogy碩士學位論文MASTERDISSERTATIoNo論文題目：鋼一銅一塑三層復臺材料端面摩擦學位類別條件下的溫度場研究學歷碩士學科專業(yè)：(工程領域)塑自避過星堡建作者姓名：堡婆壁導師姓名：胡鼓國數(shù)授完成時間：2地Z生且一奪一口iResearchonTemperatureFieldofLayeredCompositesofSt

2、eelCopperPlasticsunderEndfaceFrictionalConditionsAbstractThesteelcopperplasticmaterialwithlayeredstructurecomposedoflowcarbonsteel，copperpowderandpolyoxymethylene(POM)ormodifiedPOM，isone虹ndofoillessselflubricationcomposi

3、tesIthashighloadingcapacitybesidesitsselflubricationThesteelprovidesthecompositehighstrengthandloadingcapacitythemiddlelayerofcopperpowdersuppliestheeffectsofrapidheattransferabilityandholdingthepolymericsurfacelayerwhic

4、hactsassolidlubricationThiskindofcompositesconquersthelowstrengthofpureplastics，andhassometypicalperformances，forexample，excellentheatexchangesmalllinearexpansioncoeffidentandhighantiabrasionIt8tillretalastheselflubrieat

5、ionofplastiesThereforeithasbeenusedwidelytoproduceserflubricationbearingsInthisthe出the丘ictionandwearbehaviorsofthecompositewiththesurfacelayerofpurePOMorPOMfilledbYllanoMoS2particleswerefirstlyinvestigatedviatheelldfacet

6、ribometerItwasfoundthatthewearresistanceandfrictionreductionofPOM丑UedwithnanoMoS2particleswerehigherthoseofpurePOMSecondlyathreedimensionaltransientstatemathematicalmodeldescribedtheheattransferbehaviorwhichwasresultedfr

7、omthefrictionontherubbingsurfaceofthecompositeswasestablishedbasedontheheattransfertheorytribologicalprincipleandfiniteelementmethodAtlast，itwasstudiedthatthefiniteelementmodelofthecompositesbymeansofANSYSsoftwareandthet

8、emperaturefieldsontherobbingsurfaceunderendfaceconditionsThetemperaturedistribution8onthesurfacelayerwerestudiedincaseofdifferentpolymercompositesandthesimulationresultswerecomparedwiththeexperimentalresultsaswellTheresu

9、ltsshowedtheheatconducti詘yofPOMmledbynanoMoS2particleswmahigherthatthatofPOMIntheend，itwasobtainedthatthetemperaturedistributioncurvesbasedondiflerentheatfluxescalculatedbydifierentmethod8andfoundthatthesimulationresults

10、viathereversereducemethodwasthemostclosetoexperimentalvalues0ntheotherhand，theresultsgainedbytheclassicalcontactingheatfluxdistributioncoefficientmethod8werefarawaytheexperimentdataKeywords：MetalplasticComposites，Endfric