鋼-銅-塑三層復(fù)合材料端面摩擦條件下的溫度場(chǎng)研究.pdf

1、1054t00女女：——單位代碼：—地量墨L學(xué)號(hào)：∞∞嗆Lu哪肥工學(xué)大UniversityofTechno警Iogy碩士學(xué)位論文MASTERDISSERTATIoNo論文題目：鋼一銅一塑三層復(fù)臺(tái)材料端面摩擦學(xué)位類別條件下的溫度場(chǎng)研究學(xué)歷碩士學(xué)科專業(yè)：(工程領(lǐng)域)塑自避過星堡建作者姓名：堡婆壁導(dǎo)師姓名：胡鼓國數(shù)授完成時(shí)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