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9420068JOURNALOFSHANGHAIDIANJIUNIVERSITYVol.9No.4Aug.2006:2006203217:(19712),,,:167122730(2006)0420024205(,,200245),,(MatrixLaboratory,MATLAB)(Simulink)(AutomaticDynamicAnalysisofMechanicalSystems,ADAMS),,;;;;TH113AAStudyoftheDynamicofSlider2crankMechanismLiuJun(SchoolofMechanicalEngineering,ShanghaiDianjiUniversity,Shanghai,200245)AbstractThebasictheoryofmechanicaldynamicsanditsmethodofstudyingareintroduced.Thenkineto2staticanalysisisusedtogetthenumericalresolutionoftheslider2crankmechanism.Af2terbuildingthevectormodeloftheslider2crankmechanism,simulationcomparisoniscarriedoutbasedonMATLAB(Simulink)andADAMS,andthemethodofdynamicanalysisandelasto2dynamicanalysisareprobedinto.Keywordsslider2crankmechanism;dynamics;simulation;MATLAB;automaticdynamicanal2ysisofmechanicalsystems,[1]2,4,(),,,,ni=1(Fi-miai)ri=0(1):Fi-miairi:ddt9T9qj-9T9qj=Qj(j=1,2,,k)(2)T=ni=112miv2i(3):miviTqjQj(1),,MAT2LABSimulinkADAMS,,,MATLABADAMS1Fig.1Sketchofslider2crankmechanism1[2],,,,:,n,miFiFNi,Fi+FNi+FIi=0(i=1,2,,n)(4):FiFNiFIi1,OA=R=0.5m,AB=L=1m,=t,=1ms-2,m=5kg,AB,BB,2,Fi+F+FN+mg=0(5):Fi=-ma2Fig.2ForcesappliedtothesliderOxy(1),(5)x,y,mx=-Fcosmy=Fsin+FN-mg(6)x=Rcos+L2-R2sin2(7)Ûx=-Rsin-R2sincosL2-R2sin2(8)x=-R2cos-R22cos2(L2-R2sin2)+R42sin2cos2(L2-R2sin2)3/2(9)(9)(5),:Rsin=Lsin,sin=RLsincos=1LL2-R2sin2F=mLR2cosL2-R2sin2+R22cos2(L2-R2sin2)+R42sin2cos2L2-R2sin2(10)FN=mg-FRLsin(11)OA=R=0.5m,AB=L=1.0m,=t,=1ms-2,m=5kg,5220064:F=50.5cos1-0.25sin2+0.25cos2(1-0.25sin2)+0.0625sin2cos21-0.25sin2(12)FN=5g-0.5Fsin(13)F33FFig.3RelationbetweentheforceFandthecrankangle,,,,,MATLAB(Simulink)ADAMS,2MATLAB[325]2.144Fig.4Vectormodelofslider2crankmechanism,xyR2cos2+2cos3=0(14)R2sin2+2cos3=0(15):R223(14)(15),2=23=3,-R22sin2-23sin3=0(16)-R22cos2+23cos3=0(17):23R3sin31-R3cos303R1=-R22sin2R2cos2(18):R1(16)(17),R3sin31-R3cos303R1=-(R22sin2+R222cos2+R323cos3)R22cos2-R222sin2-R323sin3(19):233.2,Calculate.mMATLABSim2ulink,5,R2=100mm,R3=400mm;;,2=10rads-2:2=10,2=0,3=0,2=0,3=0,R1=500mmt5s2=10rads-2,6762200645MATLAB(Simulink)Fig.5MATLAB(simulink)simulationmodel6MATLAB(simulink)Fig.6MATLAB(Simulink)simulationcurveofthesliderspeed7MATLABFig.7MATLAB(simulink)simulationcurveoftheslideracceleration3ADAMS[627]3.1ADAMSADAMSMDIADAMS/View;ADAMS/Sol2verADAMS,ADAMS8,9,108ADAMSFig.8ADAMSsimulationmodeloftheslider2crankmechanism9ADAMSFig.9ADAMSsimulationcurveofthesliderspeed69710,,910ADAMS,,7220064:10ADAMSFig.10ADAMSsimulationcurveoftheslideracceleration3.2ADAMS,,,,,,AD2AMS,,ADAMS,,,,,ADAMSAD2AMS/Flex,ANSYS(MNF),,,,11,,,,,,11Fig.11ADAMSsimulationstateofimportingflexiblepart4,[1]5,,,,,,,[1].[M].:,2000:125.[2].[M].2.:,2004.[3],,.[J].,2002,18(3):2892293.[4],.MATLAB[M].:,2003:55283.[5].MATLAB[J].,2005,26(3):1722175.[6],,,.ADAMS[J].,2004,5:53255.[7],,,.ADAMS[M].:,2002:1902220.8220064