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ID:57023964
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页数:36页
时间:2020-07-31
《自编习题集(双语).pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ExerciseofmechanismsandmachinetheoryName:class:Ordernumber:Grade:2-1Pleasedrawthekinematicdiagramsofthemechanismsshownbelow。(a)(b)1ExerciseofmechanismsandmachinetheoryName:class:Ordernumber:Grade:(c)2ExerciseofmechanismsandmachinetheoryName:class:Ordernumber:Grade:2-2Pleas
2、ecalculatetheDOFofmechanismsasfollows,canyoupointoutthesemechanismshaveadeterminedmotionornot?(Thelinkwitharrowisdrivinglink)(c)(d)3ExerciseofmechanismsandmachinetheoryName:class:Ordernumber:Grade:3-1Pleaseconfirmthelocationoftheinstantcentresofmechanismsasfollows(Usingthe
3、signP)。ij4ExerciseofmechanismsandmachinetheoryName:class:Ordernumber:Grade:4-1Accordingtothelinkdimension,determinethetypeoffour-barlinkageholdingdifferentlinkasframe?5ExerciseofmechanismsandmachinetheoryName:class:Ordernumber:Grade:4-2Inarevolutefour-barlinkageABCDshownas
4、belowb=100mmc=80mmd=110mm(1)FindtherangeofthevaluesforthelengthLABoflinkABifthelinkageiseither(a)crank-rockermechanismwithcrankAB,or(b)adouble-rockermechanism.(2)Canthelinkagebeadouble-crankmechanismbychoosingLABsuitably?Why?6ExerciseofmechanismsandmachinetheoryName:class:
5、Ordernumber:Grade:4-3Inthedouble-cranklinkageABCDshownasbelowLAB=80mmLBC=180mmLCD=230mmLAD=200ThedriverBCrotatesataconstantspeed.Findtheminimumtransmissionangleofthelinkagemin7ExerciseofmechanismsandmachinetheoryName:class:Ordernumber:Grade:4-4Intherevolutefour-barlinkage
6、ABCDLetlinkADistheframeLAB=60mmLBC=130mmLCD=140mm0LAD=200mmandBAD135(1)Determinethetypeoftherevolutefour-barmechanism(2)IfthesidelinkABisadriverandrotatesataconstantspeed(a)findthepressureangleandtransmissionangleofthemechanismatthatposition(b)Findtheangularstrokeofth
7、elinkCDmax(c)Findthecrankacuteanglebetweenthetwolimitingpositions(d)CalculatethetimeratioK(e)Willanydead-pointoccurduringthewholecycleofthemotion?(f)Findthemaximumpressureangleandthemaxminimumtransmissionanglemin8ExerciseofmechanismsandmachinetheoryName:class:Ordernumbe
8、r:Grade:4-5Designtherevolutefour-barlinkageABCDaccordingtothefigureasbelow:Letthelengthof
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