introduction to doe(诺基亚公司 doe 设计实验 培训 教材)

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1、DesignofExperimentsIntroductionandOverviewVersion1.1.0WeWillNowBeginToFinalizeOurIdentificationOfCriticalXVariablesAndToBeginOurInvestigationsOfTheNatureOf“F,”TheTransferFunctionInTheEquationAbove.TheFocusoftheImprovePhaseY=f(X)AtthispointintheSixSigmaprocess,weshouldhave:Anunderstand

2、ingofthemagnitudeandscopeoftheproblem,includingdefectsperunit(DPU)andCostofPoorQuality(COPQ)Concretegoalsandobjectives,includingprojectedDPUreductionsandcostsavings.AYvariablewithareliablemeasurementsystemAcapabilityanalysisofYwithanunderstandingofthenatureofprocessdeficiencies—istherea

3、problemwithmean,variance,distributionshape,orsomecombinationofthethree?AshortlistofpotentialXvariablesobtainedthroughanalysisofprocessdemographics,multi-varianalysis,andothergraphicalandstatisticaltechniques2ExperimentsAn“experiment”is...Anytestinginwhichtheinputsareeithercontrolledordi

4、rectlymanipulatedaccordingtoaplanA“designedexperiment”...Addsstructuretotheplanandaspecificmethodologytotheanalysisoftheresults3ExperimentationStrategyDefinetheproblem.Establishtheexperimentalobjective.Selecttheoutput(response)variables.Selecttheinput(independent)variables.Choosetheleve

5、lsfortheinputvariables.Selecttheexperimentaldesign.Executetheexperimentandcollectdata.Analyzethedata.Drawstatisticalconclusions.Replicateorvalidatetheexperimentalresults.Drawpracticalsolutions.Implementthesolutions.4Aswemovedownthislist,theexperimentsgeneratemoreandmorepowerfuldata.Usua

6、lly,thiscomesatthepriceoflargerexperimentaldesigns,moresamples,orincreasedcomplexity.Wemustdetermine,asapartofourplanningactivities,thequalityofinformationweneedtoimproveourprocessorproduct.HierarchyofExperimentationOnefactoratatimeScreeningdesigns(Fractional-Factorials)Characterization

7、designs(Full-Factorials)Optimizationdesigns(responsesurfacemethods)5Device:TheCatapultBallType“Wiffle”“Solid”PinPositionNumberofRubberBands(1or2)CupPositionHookPositionStopPosition3451234123456StartAngle612ProcessDesignProblemHowtoLaunchaBallaSpecificDistance6Definetheproblem—S