简介：Theefficientandreliablehumancentereddesignofproductsandprocessesisamajorgoalinmanufacturingindustriesfornumeroushumanfactorsmustbetakenintoaccountduringtheentirelifecycleofproducts.Amulti-agentsintelligentdesignsystemispresentedformanufacturingprocesssimulationandproducts’ergonomicanalysis.Invirtualdesignenvironment,thevirtualhumanwithhigh-levelintelligenceperformstasks’operationautonomouslyandshowsoptimumpostureconfigurationwithergonomicassessmentresultsinrealtime.Thefunctionsarerealizedbyintelligentagentsarchitecturebasedonamodernapproachderivedfromfuzzymulti-objectsdecision-makingtheory.Acasestudyispresentedtodemonstratethefeasibilityofthesuggestedmethodology.

简介：Thispaperproposesanewcellintuitionsimulationmethodwhichisacombinationofintuitivesimulationcalculationmethodandtheoperationofbinaryimage,andapplieditintheinnovationofthegraphicdesignprocess.Firstofall,westudyhowtoexpressavarietyofgraphics,andestablishthedefinitionofcellintuitivemodel,workoutthecellintuitiveoperationprocessandmanynewcellularoperatorssuchasavarietyofmatrixblockscrossoveroperator,avarietyofmatrixblocksmutationoperator,matrixblocksreplaceoperator,matrixblockscompressionoperator,matrixblocksextensionoperator.Bychoosingtwoormorecellsandselectingtheartificialselectionorfitnessselection,wecansetupandvisualizethedesignandpickthebestdesignresults.Finally,validationismadeonthisalgorithmbyanexample,andainnovationgraphicisalsorepresented.

简介：Inrecentyears,accordingtotheneedofintelligentvideosurveillancesystemincreasingrapidlyinmetropolitancities,adesignbasedonS3C2440microprocessorandembeddedLinuxoperatingsystemisadoptedforreal-timevideotargettracking.However,itisverychallengingasembeddedsystemsusuallyaffordlimitedprocessingpowerandlimitedresources.Therefore,toaddressthisproblem,areal-timetrackingalgorithmusingmulti-featuresbasedoncompressivesensingisproposedandimplemented.Thealgorithmusesmultiplematrixastheprojectionmatrixofthecompressivesensingandthecompresseddateasthemultiplefeaturestoextractusefulinformationneededbytrackingprocess.FunctionsandlibrariesinOpenCVwhichweredevelopedbyIntelCorporationareutilizedforbuildingthetrackingalgorithms.Itistestedwithvariantvideosequencesandtheresultsshowthatthealgorithmachievesstabletrackingforthetargetmovedofthelightchanged.

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简介：ComputerArt(CA)isaveryimportantfieldincomputerapplications.Basedontheanalysisandsummarizationofthepaintingprocess,anewmethodofCAcreationusingthetechniquesofcom-putergraphicsandtheexpertsystemispresentedinthispaper.Thereductionofpatternmodel,simu-lationofspecialeffect,representationofaestheticsknowledgeandfuzzyjudgementofbeautyareinclud-edbythisnewmethod.

简介：Amethodologyisimplementedtofindtheoptimumreducedweightconfigurationdesignofanoperatingstructureofacivilaircraftverticaltailfin.FE(finiteelement)basedtopologyoptimizationisexecutedtofindtheoptimummaterialdistributionofinitialdesignspaceofribbymaximizingthestiffness.Loadspertinenttotheoperatingandgroundconditionsareestimatedandapplied,consideringtheorientationofstructuralassemblymembersandbuilt-insupportsofferedinthemainstructure.Manufacturingconstraintsareincorporatedintotheoptimizationlooptogeneratepragmaticandmanufacturabledesignconfiguration.ThetopologicallyoptimizedconfigurationisthenconvertedtoCADviabledesignthroughdatareductionandsmoothingbyconvertingtoISO-surfaces.Amethodologyisalsodevisedtomodifythetopologicaloptimizedvoidsandmateriallayoutpreciselywithsplinesandfilletstoconstructmanufacturablefeaturesandavoidstressconcentrations.Theresultingnoveldesignproposalisthenanalyzedandvalidatedagainststipulatedloads,constraintsandotherdesignneeds.Resultsvalidatethenewdesignproposalasmorereliable,havingreducedweightandenhancedstructuralperformance.

简介：Motioncontrolcanbeconsideredasthesynergisticcollaborationofmechanicalandelectricalengineering,computerscienceandinformationtechnologytoapplyacontrolledforcetoachieveusefulmotioninfluidorsoiledelectromechanicalsystems.Withthedevelopmentofcomputer,electronics,andautomaticcontroltheory,motioncontrolcomestoanewstage.Greatapplicationsarebasedonthecharacteristics,stemmingfromadvantagesofelectronicsandmoderncontroltechnologyachievements,havingaverygoodloadmatchingproperty.Currently,microprocessor-basedcontrollersareinvariablyusedinmostapplicationsofdriveelectronics.Theobjectofthisworkistodesignapositioncontrolmechanismsystem,whichcanbeusedintestsectionoflowspeedwindtunnel.Systemloadspecificationsandperformancerequirementsaregiven.Acomprehensivestudyofmathematicalmodelingofthemechanismcomponentsisgiven.Procedureforselectionofvariouscomponentswithoptimumparametersisdiscussed.Afterselectionandcalculationofsystemparameterstomeettheperformancerequirements,aPIDcontrolmethodisadopted.

简介：Introducingbasicdesignmethodologyfordevelopingbacksteppingnonlinearcontrollerforvibrationcontrolsystem.Withasimplifiedsecond-ordersystemmodelofnonlinearvibrationsystem(Duffing’sequation),where,theprocesshasillustratedthebacksteppingdesignstep-by-step.Backsteppingisanovelnonlineardesigntool,whichisbasedonconstructingtheLyapunovfunctionfortheclosed-loopsystemsandguaranteesthestabilityandtrackingperformancethroughenergydissipation.Ingeneral,thisnonlinearcontroldesignapproachgeneratesaggressivecontrolefforttoreducethetrackingerrorpresentedinthiscontrolsystemandsignificantlyimprovethesystembandwidth.Theeffectivenessofthedesignschemeisshownthroughthecomputersimulation.

简介：一条动态输出反馈控制器设计途径基于锥，互补linearisation过程被建议为线性时间不变(LTI)有致动器的系统浸透。首先，吸引力的领域的评价被给。然后，发现吸引力的领域的一个更大的评价的一个设计方法被介绍。在设计的过程，非凸的条件被获得，因此一个锥互补linearisation过程被利用解决非凸的可行性问题。二个例子被给说明设计方法的效率。

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简介：这篇论文考虑源于易于致动器浸透和L无穷骚乱的线性系统的一个家庭的一个交换系统的骚乱忍耐/拒绝的问题。为骚乱的L无穷标准上的线性反馈获得，一个给定的切换的计划和给定的界限的一个给定的集合，条件被建立，以线性或双线性的矩阵不平等，在哪个下面一套某个形式面对致动器浸透和L无穷骚乱为一个给定的交换线性系统是不变的，并且靠近环的系统拥有骚乱拒绝的某个水平能力。与这些条件，反馈获得和切换的计划的设计能是抑制了优化问题被提出并且解决。骚乱忍耐被最大的界限在从一个给定的集合开始的轨道为仍然保持围住的骚乱上测量。骚乱拒绝被系统产量的L无穷标准或由驾驶它的状态进或在起源的一位小邻居以内保留它的系统鈥檚能力测量。结果那，在家庭的所有系统是相同的，交换系统还原剂到在一条切换的反馈法律下面的一个单个系统。模拟结果比一条单个线性反馈法律能证明在一条切换的反馈法律下面的如此的一个单个系统能有更强壮的骚乱忍耐/拒绝能力。关键词致动器浸透-骚乱拒绝-骚乱忍耐-L无穷性能-集合不变性-交换系统梁璐在沈阳出生了，中国，在1980。他从沈阳大学，沈阳，中国，和Huaqiao大学在自动控制收到了他的学士和硕士学位，Quanzhou，中国分别地。他当前在自动化，上海JiaoTong大学，和部门的部门向他的博士学位正在工作电并且计算机工程，弗吉尼亚大学。林宗莉是在部门的一个教授电并且在弗吉尼亚大学的计算机工程。他从厦门大学在数学和计算机科学收到了他的学士学位，中国厦门在1983，他在从空格技术的中国学院的自动控制的M.E学位，中国北京在1989，并且他的博士学位在电并且从华盛顿的计算机工程州立大学，华盛顿普尔曼，在1994。他的当前的研�

简介：Inrecentyears,punchingtechnologyofourcountryisdevelopingfast.Theproportionofhandfeedingpunchingprocessinghasgraduallybeenreplacedbyautomaticfeedingandunloadingmechanism,duetothelowefficiency,poorsecurity.Inthispaper,wedesignanautomaticfeedingandunloadingsystemofthepunchingsheetsofmotor.Therotarymanipulatorconsistsofthetransmissiondevice,themechanicalarmdevice,thematerialsuctiondevice,therawmaterialautomaticliftingdeviceandsoon.Adoptingtherodlesscylinderasthemainactuator,thesystemrealizesthesebeatmovementsofcontinuousliftingup,centering,conveying,unloading.Accordingtotheworkingprincipleandmechanicalstructureofthecomponentsinthesystem,thefunctionandapplicationofeachcomponentinthewholefeeding-and-unloadingsystemareanalyzedinthispaper.

简介：Fuzzycontrolproblemsforsystemswithboundeduncertaindelayswerestudied.BasedonLyapunovstabilitytheoryandmatrixtheory,anonlinearstatefeedbackfuzzycontrollerwasdesignedbylinearmatrixinequalities(LMI)approach,andtheglobalexponentialstabilityoftheclosed-loopsystemwasstrictlyproved.Forafuzzycontrolsystemwithboundeduncertaindelays,undertheglobalexponentialstabilityconditionwhichisreducedtoplinearmatrixinequalities,thecontrollerguaranteesstabilityperformancesofstatevariables.Finally,thesimulationshowsthevalidityofthemethodinthispaper.

简介：Inordertoovercomemanyproblemsandshortcomingsofourthree-dimensionaldesigneducationinmechanicaldrawing,makethestudentsmasterthemoderndesignmethodandtechnologyeasily,modernmodelingmethodandshapingmethodareintroduced,andtheshapingdesigningmethodsofassembled-bodyareanalyzedincludingbasicrequirementsforshapingdesign,commonprinciplesofshapingandshapingdesignmethod.Itwillbehelpfultoimprovethespatialimaginationandmodellingabilityofstudent.

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简介：Theproblemoftransientstabilityforasinglemachineinfinitebussystemwithturbinemainsteamvalvecontrolisaddressedbymeansofanoveladaptivebacksteppingmethodinthispaper.Therecursivedesignprocedureoftheproposedcontrollerismuchsimplerthanthatoftheexistingcontrollerbasedonconventionaladaptivebacksteppingmethod.Inthesystem,thedampingcoefficientismeasuredinaccurately,andthereactanceoftransmissionlinealsocontainsafewuncertainties.Anonlinearrobustcontrollerandparameterupdatinglawsareobtainedsimultaneously.Thesystemdoesnotneedtobelinearized,andtheclosed-looperrorsystemisguaranteedtobeasymptoticallystable.Thedesignprocedureandsimulationresultsdemonstratetheeffectivenessoftheproposeddesign.

简介：AnewandintelligentdesignmethodforPIDcontrollerwithincompletederivationisproposedbasedontheantsystemalgorithm(ASA).ForagivencontrolsystemwiththiskindofPIDcontroller,agroupofoptimalPIDcontrollerparametersK*p,T*i,andT*dcanbeobtainedbytakingtheovershoot,settlingtime,andsteady-stateerrorofthesystem'sunitstepresponseastheperformanceindexesandbyuseofourimprovedantsystemalgorithm.K*p,T*i,andT*dcanbeusedinreal-timecontrol.ThiskindofcontrolleriscalledtheASA-PIDcontrollerwithincompletederivation.ToverifytheperformanceoftheASA-PIDcontroller,threedifferenttypicaltransferfunctionsweretested,andthreeexistingtypicaltuningmethodsofPIDcontrollerparameters,includingtheZiegler-Nicholsmethod(ZN),thegeneticalgorithm(GA),andthesimulatedannealing(SA),wereadoptedforcomparison.ThesimulationresultsshowedthattheASA-PIDcontrollercanbeusedtocontroldifferentobjectsandhasbetterperformancecomparedwiththeZN-PIDandGA-PIDcontrollers,andcomparableperformancecomparedwiththeSA-PIDcontroller.

简介：Researchsituationofeco-designisanalyzed,andthenthoughtsandmethodsofeco-designarediscused.Theeco-designincludespackagingmodularization,dematerialization,energy-savingandbio-simulation.

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简介：Thispaperaddressestherandomtime-delaysandpacketlossesissuesofnetworkedcontrolsystems(NCS)withintheframeworkofjumplinearsystemswithmode-dependenttime-delays.Anewdelay-dependentconditiononthestochasticstabilityisproposedbyanewstochasticLyapunov-Krasovskiifunctional.Theconditionisformulatedasasetofcoupledlinearmatrixinequalities(LMIs).Asanexampletoverifytheproposedmethod,aninverted-pendulumsystemwithnetworkisconsidered.Thesimulationresultsdemonstratetheeffectivenessofthemethod.