实验设计

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1、DesignofExperiments(DOE)Thesubjectmattercontainedhereiniscoveredbyacopyrightownedby:FORDMOTORCOMPANYCORPORATEQUALITYDEVELOPMENTCENTERDEARBORN,MICopyright©2001FordMotorCompanyThisdocumentcontainsinformationthatmaybeproprietary.Thecontentsofthisdocumentmaynotb

2、eduplicatedbyanymeanswithoutthewrittenpermissionofFordMotorCompany.AllrightsreservedTableofContentsIntroduction3Agenda3PurposeoftheCourse5Goal5Objectives5DesignofExperiments(DOE)History7DOEandtheSTAEngineer7DefinitionofDOE7UsesofDOE9Planning10StepsforExperim

3、entalDesign10DOEPlanAnalysis13CommonFailures13InfluencesonControlFactors13EvaluationProcedures15StepsoftheDOE17ChecklistforDOE19QuestionstoAsktheSupplieraboutthePlan21Addingup(Pool)StandardDeviations22StepsforSimpleAnalysis24FactorialExperiments25BasicConcep

4、t25InteractionEffects29FractionalFactorials30UseoftheResults32APracticalAidforExperimenters33SignificanceofFactorEffects35Activity:TypicalThree-factortwo-levelexperiment36FractionalFactorialDesign37DOEMethods39ClassicalVersusTaguchiMethods39Taguchi’sLossFunc

5、tion41Optimalcostofquality42TaguchiMethod44TaguchiCake-BakingExample45TipsfromTaguchi47Signal-to-NoiseRatio49ControllingNoise51InnerandOuterArrays52SignaltoNoiseforMaximumorMinimum54ConfirmingtheExperiment56EvolutionaryOperation(EvOp)58ANOVAMethods60Assumpti

6、onsforApplyingANOVA60AnalysisofVariance62CalculationsforANOVATable64CaseStudies69CaseStudy1—TheMismatchedMuffler70CaseStudy271Summary74AdditionalResources76SubjectMatterExpert(SME)76AdditionalTraining76References76ReviewofAnswerstoPre-TestandPost-Test77Intro

7、ductionWelcometotheDesignofExperiments(DOE)course,partoftheCorporateQualityDevelopmentCentercurriculum.ThisisoneofthecoursesintheQualityToolsmodule,whichisdesignedtoprovideSTAEngineerswithpracticalknowledgeofthetoolsrequiredtosuccessfullyaccomplishtheirjobs.

8、AgendaIntroductionDesignofExperiment(DOE)HistoryPlanningDOEPlanAnalysisFactorialExperimentsDOEMethodsCaseStudiesSummaryAdditionalResourcesPurposeoftheCourseThiscoursepresentsstatisticalconceptsn