Sensitivity analysis of nanoparticles manipulation based on different friction models.pdf

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1、AppliedSurfaceScience258(2012)6713–6722ContentslistsavailableatSciVerseScienceDirectAppliedSurfaceSciencejournalhomepage:www.elsevier.com/locate/apsuscSensitivityanalysisofnanoparticlesmanipulationbasedondifferentfrictionmodelsM.H.∗Korayem,M.Taheri,M.ZakeriRoboticResearchLaboratory,CenterofExcelle

2、nceinExperimentalSolidMechanicsandDynamics,SchoolofMechanicalEngineering,IranUniversityofScienceandTechnology,Tehran,IranarticleinfoabstractArticlehistory:Theadventofminiaturizationandtransitionfromthemacroworldtothemicro/nanoworldhasbroughtReceived17March2011intoexistencematerialswithmoreratioofa

3、reatovolume.IntransitionfromthemacroworldtotheReceivedinrevisedform6November2011micro/nanoworld,surfaceforcessuchasfrictionandadhesionthatwereformerlylesssignificantor3December2011AcceptedevenAvailableonline24December2011negligibleareundersolemnscrutiny.Inthisrespect,variousfrictionmodelshavebeende

4、velopedbynumerousresearchersinanefforttomodelthegoverningconditionsinthemicro/nanomanipulation.InKeywords:thispaper,nanoparticledisplacementdynamicmodelingandsimulationinAFM-basedmanipulationisaddressedusingadvancedfrictionmodelsinthenanoscaleincludingHKandLuGrewhicharebothontheModelingbasisNanoma

5、nipulationoftruecontactsurface.Moreover,theeffectofaccuratemodelingontheprocessofmanipulationiscomparedwiththeresultsofthepreviousmodel.Inaddition,criticalforceandtimevariationsbyAtomicForceMicroscopyusingdifferentfrictionmodelsareanalyzedundertheinfluenceofmodelparameters.PreviousresearchFrictionm

6、odelsentailedasimplificationofnanoparticlesmanipulationmodelingusingmodifiedCoulombfrictionmodelandassumingapparentcontactsurfacewhileinreality,truecontactsurfaceismuchlessthanapparentcontactsurfaceduetotheraggednessofsurfaces.Thiscausesasignificantdecreaseinfrictionforceandhencemanipulationcriticalp

7、arameters.Implementinganaccuratefrictionmodelupgradestheprecisionofthepriorlesscomplexmodels.SimulationresultsshowthatthepredictedcriticalforcenecessaryfortheinitiationofparticlemovementbyHKandLuGremodelsarereduc