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29 Cards in this Set

  • Front
  • Back
What is Design?
creating new solutions to problems
What are the challenges of Design?
Creativity- new creation
Complexity- making decisions on variables/parameters
Choice- choices btw solutions
Compromise- balancing requirements
What are the design operations?
1. explore alternatives
2. formulate models
3. specify components
4. select material
What are the steps in product life cycle?
1. R&D
2. Market Study
3. Production
4. Intro
5. Growth
6. Maturity
7. Decline
What are static products?
- incremental change
- customer not eager to change
- fashion/styling plays little role
- stable no. of large producers
- high price competition
- little market research
- mature/stable technology
- industry restrict change
- process (not product) research
What are dynamic products?
- customer drives change
- many small producers
- new products with advancing technology
- high product differentiation
- low industry standardization
- product (not process) research
What are examples of static & dynamic products?
Static - automobiles and consumer products
Dynamic - telecommunication systems and softwares
What are the design requirements?
1. Physical
2. Aesthetic
3. Performance
4. Cost
5. Manufacturing technology
6. Environmental
Whare are the pitfalls of traditional design?
- design decisions affect life cycle cost
- process optimisation cannot be made up for careless design
- change after design stage is too expensive
Whare the phases of technology advancement?
1. Invention - idea conceived
2. Innovation - idea practiced/utilized
3. diffusion - innovation widespread initiation
Why is design important?
- major effect on COST
- QUALITY built into product
- determines cycle TIME
What is the aim of DFM?
- minimise COST
- minimise development cycle TIME
- increae QUALITY
Whare are the steps of conceptual design?
1. id customer needs
2. define problem
3. gather info
4. conceptualize
5. select concept
6. refine PDS
7. review design
Whare is embodiment design?
- product archictecture
- configuration design
- parametric design
What are the considerations for planning for manufacture?
- process sheet
- design tools
- production plant
- work schedule & inventory control
- quality assurance
- standard time/cost
- information flow
What are the considerations for planning for distribution?
- shipping
- shelf life
- warehouse arrangement
- market exercise
What is involved in detail design?
- add missing info
- prepare drawings
- prepare assembly instructions
- build/test prototypes
- review design
What are the considerations for planning for use?
- ease
- reliability
- safety
- convenience
- economy of operation
- duration of service
What are the consdierations for planning for retirement of product?
- end of life (reasons)
- environmental concerns
What is the morphology of design?
- conceptual design
- embodiment design
- detail design
- planning of manufacture
- planning for distribution
- planning for use
- planning for retirement of product
What are design review considerations?
What are the organisations for design?
What is project organization?
-focus on project goal
-short term
-'cutting edge'
-not as economical
-dynamic products
What is functional organization?
-commong background (expertise)
-economies of scale
-formal interaction btw units
-slow decsion making
-static products
What are the different ways to redesign?
Fixes- modifications
Updates- improvement
What is robustness?
consistency of component performance under variable conditions
What is the axiam design approach?
1. independence of functional requirements
2. minimum information content
What are the design corollaries?
1. decouple parts of solution
2. integrate functional requirements
3. minimuse number of functional requirements/constraints
4. standardize
5. use symmetry
6. material/energ conservation
7. continuum parts
What is robustness?
consistency of component performance under variable conditions