Engineering Design. Product Design Process The four C’s of Design Creativity: Requires the...
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Transcript of Engineering Design. Product Design Process The four C’s of Design Creativity: Requires the...
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Engineering Design
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Product Design Process
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The four C’s of DesignCreativity:Requires the creation of something that has not existed beforeor not existed in the designers mind before
Complexity:Requires decisions on many variables and parameters
Choice:Requires making choices between many possible solutions atall levels, from basic concepts to smallest detail
Compromise:Requires balancing multiple and sometimes conflicting requirements
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Static vs. Dynamic Products
Static:Changes in design concept take place over a long periodof time; rather incremental changes occur at the subsystemand component levelsAutomobiles, Refrigerators, Dishwashers
Dynamic:Change the basic design concept fairly frequently as the underlying technology changesComputers, Telecommunications, Software
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The design Process
Evaluate
OutcomeDesignProcess
GeneralInformation
SpecificInformation
NO YES
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Scientific vs. Design Method
ExistingKnowledge
ScientificCuriosity
Hypothesis
LogicalAnalysis
Proof
State of theArt
Identificationof need
Conceptualization
FeasibilityAnalysis
Production
Scientific Method Design Method
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Problem Solving Methodology
Definition of the Problem
Gathering of Information
Generation of Alternative Solutions
Evaluation of Alternatives
Communication of the Results
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Considerations of good Design
Design Requirements
Life Cycle Issues
Regulatory and Social Issues
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I. Conceptual Design
Define Problem:
Problem StatementBenchmarkingQuality Function Deployment (QFD)Product Design Specification (PDS)
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I. Conceptual Design
Gather Information:
InternetPatentsTradeLiterature
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I. Conceptual Design
Concept Generation:
BrainstormingFunctionalDecompositionMorphological Chart
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I. Conceptual Design
Evaluation of Concepts:
Pugh Concept SelectionDecision Matrix
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II. Embodiment Design
Product Architecture:
Arrangement of Physical Elements tocarry out Function
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II. Embodiment Design
Configuration Design:
Preliminary Selection of Parts and MaterialsModeling and Sizing of Parts
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II. Embodiment Design
Parametric Design:
Robust DesignTolerancesFinal DimensionsDesign for Manufacturability (DFM)
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III. Detail Desigm
Detail Design:
Detailed DrawingsDetailed Specification
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IV. Planning for Manufacture
Designing Specific Tools and FixturesSpecifying the Production Plant and Production LinesPlanning the Work Schedule and Inventory ControlPlanning the Quality Assurance SystemEstablishing the Standard Time and Labor CostsEstablishing the System Information Flow
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V. Planning for Distribution
Shipping PackageDocumentationShelf LifeWarehouses
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VI. Planning for Use
MaintenanceReliabilityProduct SafetyConvenience in Use (Human Factors)Aesthetic AppealEconomy of OperationDuration of Service
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VII. Planning for Retirement
Useful LifeDeteriorationTechnical ObsolescenceFashion or Taste
Environmental IssuesIndustrial Ecology Green Design
RFIPower Consumption
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Marketing
Marketing Creates and Manages the company’s Relationship with its Customers
Marketing Translates Customer Needs into ProductRequirements
Marketing Defines Support Services
Marketing Studies How Customers Make BuyingDecisions
Marketing and Sales are Different
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Marketing
Early Adopters
Mainstream Adopters
Laggards
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Market Research
Define the Market SegmentIdentify the Early AdoptersIdentify Competitive ProductsEstablish the Market Size ($)Determine the Breadth of Product LineDetermine the Product Price / Volume RelationshipEstablish the Customer Needs and Wants