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1、爸径潍呲蕉酪励魏诶杉庥腆鲍揠外文翻译：娉盘烷贩戾二艮蓼鹎萋揖髡矶丫KinematicSynthesis，CamsandGears托廒档夹镣片傣咦露淼身贱撄挥Mechanismsformthebasicgeometricalelementsofmanymechanicaldevicesincludingautomaticpackagingmachinery,typewriters,mechanicaltoys,textilemachinery,andothers.Amechanismtypicall
2、yisdesignedtocreateadesiredmotionofarigidbodyrelativetoareferencemember.Kinematicdesign,orkinematicsyntheses,ofmechanismsoftenisthefirststepinthedesignofacompletemachine.Whenforcesareconsidered,theadditionalproblemsofdynamics,bearingloads,stresses,lub
3、rication,andthelikeareintroduced,andthelargerproblembecomesoneofmachinedesign.捶嵫霏诨升跫倘甾糅你屮粤虱儡Akinematiciandefinedkinematicsas“thestudyofthemotionofmechanismsandmethodsofcreatingthem.”Thefirstpartofthisdefinitiondealswithkinematicanalysis.Givenacertainm
4、echanism,themotioncharacteristicsofitscomponentswillbedeterminedbykinematicanalysis.Thestatementofthetasksofanalysiscontainsallprincipaldimensionsofthemechanism,theinterconnectionsofitslinks,andthespecificationoftheinputmotionormethodofactuation.Theob
5、jectiveistofindthedisplacements,velocities,accelerations,shockorjerk(secondacceleration),andperhapshigheraccelerationsofthevariousmembers,aswellasthepathsdescribedandmotionsperformedbycertainelements.Inshort,inkinematicanalysiswedeterminetheperformanc
6、eofagivenmechanism.Thesecondpartofdefinitionmaybeparaphrasedintwoways:野圈粼喝仄轵成釜贝秕俺刨酞棵1.Thestudyofmethodsofcreatingagivenmotionbymeansofmechanisms.砍鋈逑事缆鲞瓤遮矧熔聚兰耐迹2.Thestudyofmethodsofcreatingmechanismshavingagivenmotion.纵零遨唁蓝澄瑕散沈嘤缌纩踺泰Ineitherversion,them
7、otionisgivenandthemechanismistobefound.Thisistheessenceofkinematicsynthesis.Thuskinematicsynthesisdealswiththesystematicdesignofmechanismsforagivenperformance.Theareaofsynthesismaybegroupedintotwocategories.皂嗓壳鐾冀旗耱嵘蟋氩啷庇退觅1.Typesynthesis.Giventherequir
8、edperformance,whattypeofmechanismwillbesuitable?(Geartrains?Linkages?Cammechanisms?)Also,howmanylinksshouldthemechanismhave?Howmanydegreesoffreedomarerequired?Whatconfigurationiddesirable?Andsoon.Deliberationsinvolvingthenumberoflinksanddegree
