《生产质量控制》课程教学课件（PPT讲稿）CH7 Concept Generation

Concept GenerationChapter 7

Concept Generation Chapter 7

Concept Development ProcessMissionDevelopmentEstablishGenerateIdentifySelectTestSetPlanStatementPlanFinalCustomerTargetProductProductProductDownstreamNeedsConceptsConcept(s)DevelopmentSpecificationsConcept(s)SpecificationsPerformEconomicAnalysisBenchmark CompetitiveProductsBuild and Test Modelsand Prototypes

Concept Development Process Perform Economic Analysis Benchmark Competitive Products Build and Test Models and Prototypes Identify Customer Needs Establish Target Specifications Generate Product Concepts Select Product Concept(s) Set Final Specifications Plan Downstream Development Mission Statement Test Product Concept(s) Development Plan

Definition of a Concept: Approximate description of technologyworking principles, and form of product. Describes how product will satisfycustomerneeds

Definition of a Concept • Approximate description of technology, working principles, and form of product • Describes how product will satisfy customer needs

Concept Generation ProcessClarifytheProblemSearchSearchExternallyInternallyExploreSystematicallyReflect ontheSolutions andthe Process

Concept Generation Process

Concept Generation ExamplePowerNailerSENCO

Concept Generation Example: Power Nailer

Problem Decomposition:Function DiagramNPUTOUTPUTEnergy (?)Energy (?)Hand-heldMaterial (nails)+Material (diven nail)nailerSignal (tool"trip")-Signal (?)StoreorConvertacceptenergytoEnergyextenaltranskationalenergyenergyApplyIsolateStoreDriventranskationalNailsnailnailsnailenergy to nail"Trip"ofSenseTriggertriptooltool

Problem Decomposition: Function Diagram

External Search:Hints for Finding Related SolutionsLeadUsers-benefitfromimprovement-innovationsourceBenchmarkingcompetitiveproductsExperts- technicalexperts-experienced customersPatents-searchrelatedinventionsLiterature- technicaljournals-tradeliterature

External Search: Hints for Finding Related Solutions • Lead Users – benefit from improvement – innovation source • Benchmarking – competitive products • Experts – technical experts – experienced customers • Patents – search related inventions • Literature – technical journals – trade literature

Internal Search:Hints for Generating Many Concepts Suspend judgmentGenerate a lot of ideasInfeasible ideas are welcomeUse graphical and physical mediaMake analogiesWish and wonderUse related stimuliUse unrelated stimuliSet quantitative goalsUse the gallery methodTrade ideas in a group

Internal Search: Hints for Generating Many Concepts • Suspend judgment • Generate a lot of ideas • Infeasible ideas are welcome • Use graphical and physical media • Make analogies • Wish and wonder • Use related stimuli • Use unrelated stimuli • Set quantitative goals • Use the gallery method • Trade ideas in a group

Systematic Exploration:Concept Combination TableConvertElectricalEnergytoApplyAccumulateTranslationalTranslationalEnergyEnergyEnergy to Nailrotarymotorw/springsingle impacttransmissionmultiple impactslinearmotormoving masssolenoidpush nailrail gun

Systematic Exploration: Concept Combination Table

VegetablePeelerExerciseVoice of the CustomerKeyCustomerNeeds"Carrots and potatoes are very different."1.The peeler peels a variety of produce."I cut myself with this one."2. The peeler can be usedambidextrously."l just leave the skin on."3.Thepeelercreatesminimalwaste"l'm left-handed. I use a knife."4. The peeler saves time"This one is fast, but it takes a lot off."5. The peeler is durable."How do you peel a squash?"6.Thepeeleriseasytoclean"Here's a rusty one."7. Thepeeleris safeto use and store."This looked OK in the store."8. The peeler is comfortable to use.9. The peeler stays sharp or can beeasily sharpened

Vegetable Peeler Exercise Voice of the Customer • "Carrots and potatoes are very different." • "I cut myself with this one." • "I just leave the skin on." • "I'm left-handed. I use a knife." • "This one is fast, but it takes a lot off." • "How do you peel a squash?" • "Here's a rusty one." • "This looked OK in the store." Key Customer Needs 1. The peeler peels a variety of produce. 2. The peeler can be used ambidextrously. 3. The peeler creates minimal waste. 4. The peeler saves time. 5. The peeler is durable. 6. The peeler is easy to clean. 7. The peeler is safe to use and store. 8. The peeler is comfortable to use. 9. The peeler stays sharp or can be easily sharpened