工学部 研究紹介_2018_英語版

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Westudydeformationmechanismsofnanometre-scalematerialsbymoleculardynamics(MD)simulations.Itisdifficulttoexploresuchnanometre-scalematerialsexperimentallyduetotheirsize([nm]=10-9[m]).MDisoneofatomicsimulationmethodsandcansimulatethemovementofeachatominamaterial.UsingMD,weperformdeformationsimulationsofvariousmaterialssuchascarbonnanotubesandbulkmetallicglassestorevealthedeformationpropertiesinatomicscales.Inthislaboratory,westudynanometre-scalematerialsusingcomputation-simulations.Carbonnanotubesandbulkmetallicglassesarenewmaterialsdiscoveredrecently.Wehavetounderstandthepropertiesofmaterialsinordertousetheminvariousproducts.Ourstudiesrevealessentialdeformationpropertiesofthesenewmaterials.Basedonourstudies,theymaybeutilizedinvariousfields.MasaomiNishimuraAssociate Professor2009, Ph. D., Kobe University, Graduate School of Science and Technology. Field of study: Molecular Dynamics simulation, Solid Mechanics.We can discuss deformation mechanisms in nanometre-scale materials by computer experiment. This figure shows torsional or bending deformation analysis of a defective carbon nanotube.Solid mechanics on nanometre-scale materials using atomic simulationsComputation-simulations reveal complex changes of atomic structure in materials. This figure shows distributions of atomic strain under the indentation simulation on bulk metallic glasses.Graduatesareworkinginbroadfieldssuchasautoandelectronicsindustries.Inthislaboratory,studentsacquirethecomputation-simulationskillandtheknowledgeinsolidmaterials,whichwillbeveryusefulinyourfuturejobs.NishimuraLabIn the FutureMechanical Systems EngineeringAfter Graduation(a) Depth = 2nm(b) Depth = 4nm(c) Depth = 5nm50nmAtomic strain, γ 0.0 0.510nm14.413.415.4Atomic shear stress [GPa]0-5050Atomic bending stress [GPa]Lattice defectThereisanincreasingdemandforautonomousrobotsworkingindailyindoorandoutdoorenvironmentsanddisaster-affectedenvironments.Becausetheseenvironmentsarenotstructuredforautomatedmachines,robotsshouldbeabletoanalyzetheenvironmentsandplantheirmotionsaccordinglytoconductvarioususefulworks.Thusweareconductingfundamentalandempiricalresearchestodevelophigh-levelautonomoussystems.Recently,variousrobotsareseeinthemedia,buttheserobotsoftodayarestillfarfromachievinghuman-likeintelligence.We,roboticsresearchers,mustsolvealotofproblemsinordertocreaterobotsthatfunctioninourdailylives.Therefore,wearedevelopingintelligentsystemswhicheveryrobotinthefuturewillbeequippedwith.KimitoshiYamazakiAssociateProfessorHe recievedPh.D. degrees from Univ. of Tsukuba. Until 2012, he was joined at Univ. of Tokyo, Japan. His current research interests are in intelligent robots, robot vision, and motion planning.Robots with Intelligence!Toward beneficial autonomous systemsWevaluereal-worldrobotics.Throughexperimentsusingrealrobots,youwillfindvaluableresultsandwillgainvaluableexperiences.Youmayworkasengineersofproductdevelopmentforpublicconsumersorresearchersatuniversities.YamazakiLabIn the FutureMechanical Systems EngineeringAfter GraduationLeftfigure:anexperimentthatthedual-armrobotmanipulatesapieceofclothing.Rightfigure:researchcolleaguesandourwheeledmobilerobot.Wehavelife-sizeddual-armedrobots,smallhumanoidrobots,andwheeledmobilerobotsasresearchplatform.Exampleofsensorinformationprocessing.Theleftimageistheinputimageandtherightimageistheresultofsegmentation.Theareaiscolor-codedforeachobject.Suchadivisionfunctionisautomaticallylearnedbyamechanismofaconvolutionautoencoder,andbycombiningthiswithhumanknowledge,anobjectrecognizercanbequicklyconstructed.56