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ID:31985094
大小:12.90 MB
页数:63页
时间:2019-01-30
《基于制动温度场-分析的摩擦材料配方优化与-研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、万方数据江苏大学硕士学位论文ABSTRACTTherapiddevelopmentofmodemindustrialspeedsupthehigh·speedandoverloadingprocessofcars,trainsandothermeansoftransport,itthusdemandshigherperformanceoffrictionmaterialwhichisthecorepartofthebrake.Theformulationoffrictionmaterialdeterminesitsperformance.Themethodtodesignando
2、ptimizetheformulationoffrictionmaterialisalwaysoneofthemajorissuesofdomesticandforeignresearchers.Temperaturefieldofthefrictionmaterialduringbrakinghasveryimportantinfluenceonitsfrictioncoefficientandwearvolume,anditisalsoadirectfactorinfluencingthephysicalandmechanicalpropertiesandchemicalpr
3、opertiesoffrictionmaterials.Thetemperaturefieldoffrictionmaterialsmainlydeterminedbyitsthermodynamicperformance.Therefore,theanalysisofbraketemperaturefieldcanprovidetheoreticalbasisandguidancefortheformulationoptimizationandmaterialselectionfromthethermodynamicpointofviewtoimprovethethermody
4、namicperformanceoffrictionmaterials,thenanalyzetheinfluenceofoptimizationmaterialonfrictionmaterialsintheaspectofmaterialsciencebyexperiment.Thisstudyisaimedtoselecttheformulationoffrictionmaterialswhichhasgoodperformanceintheaspectsofthermodynamicsandmaterialscience.Firstly,amodeloftemperatu
5、refieldanalysisofdiscbrakeWasbuiltinthispapertostudythesurfaceandaxialtemperaturedistributionoffrictionplateatdifferenttimesduringbraking,SOthatwecouldanalyzetheeffectoftemperaturefieldoffrictionmaterialsonitsperformance.Then,westudiedtheeffectoffrictionmaterialthermodynamicspropertiestoitste
6、mperaturefieldbychangingthethermalconductivity,elasticmodulus,specificheatcapacityandthermalexpansioncoefficientoffrictionmaterialrespectively,andweuseditasthebasisforselectingK-feldspar,nitrilerubber,copperfromtheperspectiveofthermodynamicsastheoptimizationmaterial,determinetherangeofamounto
7、ftheoptimizationmaterialbyitsbasicperformanceandoptimizemechanisminfrictionmaterial.万方数据基于制动温度场分析的摩擦材料配方优化及研究Secondly,weusedorthogonalexperimentmethodtostudythepropertiesoffrictionmaterialswithdifferentformulationsaddedoptimizationmaterialfro
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