Pd2Product Design & Development - 2
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Pd2Product Design & Development - 2

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Product Design & Development

Product Design & Development

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  • 30/8/08 Queen Rania Center for Entrepreneurship Made In Jordan Competition/summer training 08-09

Transcript

  • 1. Product Conceptual Design
  • 2. Concept Development
    • Concept = Idea
    • It ’ s hard to make a good product out of a poor concept.
    • First “ Understand the FUNCTION ” , then think of the FORM … Separation not always possible!
    • FUNCTION is a complex expression of CUSTOMER NEEDS
  • 3. Understanding the FUNCTION
    • The first step in product development is to investigate and understand its FUNCTION.
    • Quality-Function Deployment (QFD) is one method for understanding product function based on customer needs.
    • QFD will be studied later.
    • For now, assume that you have investigated the product function and that you understand it fully.
    • It is now required to find a product FORM.
  • 4. Concept Generation
    • Assumption: A function can be achieved by more than one way (concept)
    • Generate as many concepts as possible.
    • If U generate 1 concept, it is probably a poor one. If U generate many concepts, U may have a good one.
    • By focusing on ONE concept, U realize only that concept. By considering several concepts, U realize the problem!
    • Successful design is achievable only based on optimizing among possible design alternatives (solutions)
  • 5. Techniques for Concept Generation 1. Study product prototypes :
    • Designers before U have spent many years developing the existing designs; why repeat their effort? Just study and benefit from it.
    • “ Not-Invented-Here, ” NIH, Complex
    • Studying an existing product may require DECOMPOSING it into its primary components.
    • Decomposition would uncover design strategy, component functions and subfunctions.
  • 6.
    • In DECOMPOSING an existing product, examine component interfaces with each other and the interfacing of the product with other objects.
    • FUNCTION involves material, energy, and information transfer; It happens mainly at interfaces between product components and between product components and external objects.
    • Overall FUNCTION =  SUBFUNCTIONS
    • To understand a component function, try removing it from the assembly and examining the effect.
    • Example: Computer Components. Competitors cold war against decomposition.
  • 7. 2. BRAINSTORMING
    • A group of experts conducting a design session.
    • 1 head is good; 2 is better.
    • Two subgroups: Idea Generators and Idea Evaluators
    • Idea generators generate as many ideas as possible. No attempts to evaluate at this step.
    • Collect all ideas generated. Reject none.
    • Evaluators begin to judge ideas based on customer requirements.
    • The most promising (feasible) ideas pass into further treatment.
  • 8. Exercise
    • Generate at least 10 ways to keep a small stack of paper together.
  • 9. 3. Use Sources: Patents, Journals, Books, Catalogues
    • Sources = Economy of Thought.
    • Patents usually are tested solutions.
    • Journal articles are peer reviewed, innovative, and are based on a study of previous experience in the field.
    • Books provide basic and common solutions.
    • Let authorities influence you. They would inspire your creativity. Don ’ t let them bound it.
  • 10. 4. Use of Analogies
    • Consider the FUNCTION and Ask: What else provides this function? Learn from existing devices, objects, or phenomena.
    • Example 1: Sudden friction causes spark  friction lighters.
    • Example 2: Birds  Airplanes.
    • Example 3: Human Arm  Manipulators
  • 11. 5. The Method of Extremes
    • Better concepts may be generated from a given one.
    • Transform the features of a current concept to extremes.
    • Example 1: Lenses are used for eye glasses and for telescopes. Lenses of infinity focal length = plain window glass.
    • Example 2: A very rigid spring = solid. Extremely soft spring = no effect.
  • 12. 6. The Use of Inverses
    • Consider inverting the current concept. The concept remains the same, but performance may be much better.
    • Invert moving and fixed members. Example: Piston-Cylinder pair for a car washing station.
    • Invert male and female members. Example: Electric plugs for computers and some home appliances.
    • Invert straight and curved components. Example: Cam-shaft operation on ICE valves.
  • 13. 7. Ask Experts
    • If U have little experience in the domain, a quick and good method is to consult with experts.
  • 14. 8. The Morphology Method
    • Morphology = Study of product structure
    • Divide product function into subfunctions
    • Develop concepts for subfunctions
    • Combine concepts (develop interfaces)
    • Example: coffee grinder
  • 15. TRIZ: The Theory of Inventive Problem Solving
    • Systematic Innovation!
    • TRIZ will be introduced later.
  • 16. The Conservation Principle
    • Material and energy are conserved: Their transformation and transfer should be tracked.
    • Output = Input
    • Example: Input mechanical energy transformed into heat should be dissipated – How?
    • Example 2: A cooling fluid should be dispensed or circulated – How?
  • 17. Conclusions
    • Teamwork is a critical factor to concept development.
    • Generate as many concepts as possible to overcome your mental inertia.
    • A good concept is the key to building quality into the product.
    • Refer to sources and use the expertise of others... Try to not reinvent the wheel!
    • Genius is 1 percent inspiration and 99 percent perspiration … (Thomas Edison)