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1、本科生毕业设计（论文）外文翻译毕业设计（论文）题目：几种典型的制动器的对比分析与设计外文题目：THEBRAKEBIBLE译文题目：制动器学生姓名：专业：车辆工程指导教师姓名：评阅日期：THEBRAKEBIBLEBrakes-whatdotheydo?Thesimpleanswer:theyslowyoudown.Thecomplexanswer:brakesaredesignedtoslowdownyourvehiclebutprobablynotbythemeansthatyouthink.Thecommo
2、nmisconceptionisthatbrakessqueezeagainstadrumordisc,andthepressureofthesqueezingactioniswhatslowsyoudown.Thisinfactisonlypartoftheequation.Brakesareessentiallyamechanismtochangeenergytypes.Whenyou'retravellingatspeed,yourvehiclehaskineticenergy.Whenyouapply
3、thebrakes,thepadsorshoesthatpressagainstthebrakedrumorrotorconvertthatenergyintothermalenergyviafriction.Thecoolingofthebrakesdissipatestheheatandthevehicleslowsdown.It'stheFirstLawofThermodynamics,sometimesknownasthelawofconservationofenergy.Thisstatesthat
4、energycannotbecreatednordestroyed,itcanonlybeconvertedfromoneformtoanother.Inthecaseofbrakes,itisconvertedfromkineticenergytothermalenergy.Angularforce.Becauseoftheconfigurationofthebrakepadsandrotorinadiscbrake,thelocationofthepointofcontactwherethefrictio
5、nisgeneratedalsoprovidesamechanicalmomenttoresisttheturningmotionoftherotor.Thermodynamics,brakefadeanddrilledrotors.Ifyourideamotorbikeordrivearacecar,you'reprobablyfamiliarwiththetermbrakefade,usedtodescribewhathappenstobrakeswhentheygettoohot.Agoodexampl
6、eiscomingdownamountainpassusingyourbrakesratherthanyourenginetoslowyoudown.Asyoustarttocomedownthepass,thebrakesonyourvehicleheatup,slowingyoudown.Butifyoukeepusingthem,therotorsordrumsstayhotandgetnochancetocooloff.Atsomepointtheycan'tabsorbanymoreheatsoth
7、ebrakepadsheatupinstead.Ineverybrakepadthereisthefrictionmaterialthatisheldtogetherwithsomesortofresinandoncethisstartstogettoohot,theresinstartstovapourise,formingagas.Becausethegascan'tstaybetweenthepadandtherotor,itformsathinlayerbetweenthetwowhilsttryin
8、gtoescape.Thepadslosecontactwiththerotor,reducingtheamountoffrictionandvoila.Completebrakefade.Thetypicalremedyforthiswouldbetogetthevehicletoastopandwaitforafewminutes.Asthebrakecomponentscooldown,the
