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简介：Withtherapiddevelopmentofdeepsubmicron(DSM)VLSIcircuitdesigns,manyissuessuchastimeclosureandpowerconsumptionaremakingthephysicaldesignsmoreandmorechallenging.InthisreviewpaperweprovidereaderswithsomerecentprogressoftheVLSIphysicaldesigns.Therecentdevelopmentsoffloorplanningandplacement,interconnecteffects,modelinganddelay,bufferinsertionandwiresizing,circuitorderreduction,powergridanalysis,parasiticextraction,andclocksignaldistributionarebrieflyreviewed.

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简介：Inordertoachieveintegrationofelectrmotionandmanualoperationformanualforklift,thispaperdesignsanimprovedmanualforklift.Weselecttheappropriatemotoraccordingtoparametersoforiginalmanualforklift,whichwasanalyzedbySolidWorks.Wemakethedetaileddesignofthespeedreduceraccordingtotheselectedmotor’sratedspeedandotherparameters,anddesignthereductionspeedratio,reductionspeedform,sizeofgeardrive,meshingparameters,forceanalysisofgearandstrengthcheck.Inthispaper,weelectrifythetraditionalmanualforklifteventually.

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简介：ＡＣＯＮＦＩＧＵＲＡＴＩＯＮＳＹＳＴＥＭＦＯＲＦＡＳＴＥＮＥＲＤＥＳＩＧＮ（ＡＮＡＰＰＲＯＡＣＨＴＯＷＡＲＤＳＣＯＭＰＵＴＥＲＡＩＤＥＤＣＯＮＣＥＰＴＵＡＬＤＥＳＩＧＮ）ＧｕａｎｇＺｈｏｎｇ；ＭｉｋｅＤｏｏｎｅｒＡＣＯＮＦＩＧＵＲＡＴＩＯＮＳＹＳＴＥ...

简介：ThedesignofnewSatelliteLaunchVehicle(SLV)isofinterest,especiallywhenacombinationofSolidandLiquidPropulsionisincluded.ProposedisaconceptualdesignandoptimizationtechniqueformultistageLowEarthOrbit(LEO)boundSLVcomprisingofsolidandliquidstageswiththeuseofGeneticAlgorithm(GA)asglobaloptimizer.ConvergenceofGAisimprovedbyintroducinginitialpopulationbasedontheDesignofExperiments(DOE)Technique.LatinHypercubeSampling(LHS)-DOEisusedforitsgoodspacefillingproperties.LHSisastratifiedrandomprocedurethatprovidesanefficientwayofsamplingvariablesfromtheirmultivariatedistributions.InSLVdesignminimumGrossLiftoffWeight(GLOW)conceptistraditionallybeingsought.SincethedevelopmentcoststendtovaryasafunctionofGLOW,thisminimumGLOWisconsideredasaminimumdevelopmentcostconcept.Thedesignapproachismeaningfultoinitialdesignsizingpurposeforitscomputationalefficiencygivesaquickinsightintothevehicleperformancepriortodetaileddesign.

简介：ＡＣＡＤＳＹＳＴＥＭＦＯＲＣＡＲＰＥＴＤＥＳＩＧＮＭａＹｕｈａｉ；ＷａｎｇＹａｎ；ＳｈｉＷａｎｃｈｕｎＡＣＡＤＳＹＳＴＥＭＦＯＲＣＡＲＰＥＴＤＥＳＩＧＮ￥ＭａＹｕｈａｉ；ＷａｎｇＹａｎ；ＳｈｉＷａｎｃｈｕｎＡｂｓｔｒａｃｔＴｈｉｓｐａｐｅｒｐｒｅｓｅ...

简介：Oneoftheopenissuesinprincipleschemedesignofmechanicalsystemsisprinciplerepresentation,whichnotonlyoutliesthephysicalprinciples,butalsofacilitatesthedesignsynthesis.Anenergy-basedapproachtorepresentprincipleschemedesignisproposed.Firstly,anenergyinteractionmodelofmechanicalsystemsisestablishedandanintermediatemodelisderived,inwhichprincipleschemedesignistransformedintosolvingtheenergyfunctionsofsystem.Thentheenergyfunctionsaremodeledwiththelanguageofbondgraphs,andprinciplerepresentationforcomponenytsispresented.Finally,characteristicsofthedevelopedrepresentationapproachareanalyzedandadesignexampleofgatedrivesystemisgiventodemonstratethisapproach.

简介：AnelectromagnetdesignsystemisdevelopedusingVisualC++languageandOpenGLtechnologytovisualizeparametric3Dmodel.Thesystemconsistsofprimarydesign,optimizationdesign,dynamicandstaticcharacteristics,andvisualsimulation.Allempiricalparametersandcurvesusedindesignprocessarestoredindatabase.Throughhuman-computerinteractions,anelectromagneticsystemcanbedesignedconvenientlywiththeresultsandcharacteristicscurvesdisplayedingraphicmodel.Usingthissystemcangreatlyshortentheprocessofproductdesign,andtheresultssatisfytechnicalrequirements.

简介：１ＩｎｔｒｏｄｕｃｔｉｏｎＮＣｌａｙｏｕｔｄｅｓｉｇｎｄｅａｌｓｍａｉｎｌｙｗｉｔｈｔｈｅｍｏｖｅｍｅｎｔｓｔｒｕｃｔｕｒｅａｎｄｔｈｅ３－ｄｉｍｅｎｔｉｏｎａｌｓｐａｔｉａｌａｒｒａｎｇｅｍｅｎｔｏｆｍｏｄｕｌｅｓｉｎＮＣｓｙｓｔｅｍｓ．Ｈｕ［１］...

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简介：Thispaperaimstodesignpunchingdieofthestatorandrotor.Byanalyzingandcomparing,wedeterminethebetterprocessingprogram.Notonlytoensuretheprecisionanddimensionalrequirements,butalsotoimproveefficiency.Throughdetailedanalysisoftheprocess,thispaperdeterminesthestructureoftwocompositemolds.Thedimensionsofitsconvexandconcavedieedgesizeandotherpartsarecalculatedandchecked.Finallythispapercompletesthedesignoftwomolds.

简介：InordertolightentheburdenofhealthcareworkersandhelppeoplewithLowerlimbinsufficiencytodorehabilitationtraining,thispaperdesignsamodelnamedexoskeletonsrehabilitationrobottosimulatethehumangait,includingexoskeletonsandscooterstructure,anddesignsthedrivermodule.Finally,thispaperusesWorkbenchsoftwaretodothestressandstrainanalysis,whichvalidatesthereliabilityofthewholedesign.

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简介：Wehavedevelopedafuzzyneuralexpertsystemthathastheprecisionandlearningabilityofaneuralnetwork.Knowledgeisacquiredfromdomainexpertsasfuzzyrulesandmembershipfunctions.Then,theyareconvertedintoaneuralnetworkwhichimplementsfuzzyinferencewithoutrulematching.Theneuralnetworkisappliedtoproblem-solvingandlearnsfromthedataobtainedduringoperationtoenhancetheaccuracy.Thelearningabilityoftheneuralnetworkmakesiteasytomodifythemembershipfunctionsdefinedbydomainexperts.Also,bymodifyingtheweightsofneuralnetworksadaptively,theproblemofbeliefpropagationinconventionalexpertsystemscanbesolvedeasily.Convertingtheneuralnetworkbackintofuzzyrulesandmembershipfunctionshelpsexplaintheinnerrepresentationandoperationoftheneuralnetwork.

简介：Inthispaper,itintroducedthemechanicalstructuredesignofthemultifunctionalwalkingrehabilitationrobot.WeusedtheSolidWorkstodesignandassembletherehabilitationrobot,andoptimizedtherehabilitationrobotbasedonergonomics.Theresultshowsthatthemultifunctionalwalkingrehabilitationrobothasthecharacteristicsofcompletefunctions,convenientoperation,compactstructureandsoon.Itcanmeettherequirementsofmedicalcareequipment,andeffectivelycompletethenursingworkofpatients.

简介：Duringtheevolvementofarchitecture,theresearchonarchitecturalformandstructureaswellasdifferentwaystoexpressandrealizearchitecturalthoughtsisconstantlythefocusofmanyarchitects,Thispaperillustratesthemutualinfluenceofthewaysofexpressionanddesignofarchitecturetopeople'sunderstandingofthemeaningofarchitecturethroughoutthehistoryoftheireffortsandexploration.thepaperalsodiscussestheextensiveusageofvirtual-realithapproachthroughcomputertechnology,Itpointsoutthatthetraditionalarchitecturalstandpointwillundergobreakthroughbytheemergenceofnewexpressionanddesignmethod.Inthisway,people'sunderstandingofarchitecturewillbemoreprofoundandlasting.

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