L7-design_process - VM250 Design and Manufacturing I...

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Engineering Design Process VM250 Design and Manufacturing I
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2 Outline What? Why? How? Summary
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3 Outline What? Why? How? Summary
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4 What? Engineering Design Process of devising a system, component or process to meet desired needs (Wikipedia) Needs Solution
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5 What? Needs Solution A Solution B Solution C Design process knowledge Domain knowledge
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6 What? Divergent-Convergent (aka football) model
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7 Outline What? Why? How? Summary
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8 Why?
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9 Why?
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10 Why?
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11 Why?
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12 Why?
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13 Outline What? Why? How? Summary
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14 How?
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15 How: Design Thinking http://mitworld.mit.edu/video/357 Technologically feasible Commercially viable Human centered Inspiration Iteration Storytelling
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16 How: Total Design Approach Not just technical design, involves people, organization and technology From market research to marketing, the entire product development cycle.
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17 Design Core Market / user needs and demands Product design specification Conceptual design Detail design Manufacture Marketing
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18
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19 Market/User Needs To figure out the true market/user need, you need to Acquire sufficient information about your product area; Analyze the collected information, e.g. competition analysis. Establish the market/user need situation in considerable depth. Make a “brief” at this stage. For example, “build a house” is not good enough (no details). You don’t know what is the requirement of this house. You should make a more complete statement like “build a house which houses 5 people, with what facility, with…”. We need a document which describes the true needs in details. It is necessary and important for formulating the PDS.
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20 Types of Collection Legislation- patents, trade marks, registered designs and copyright It is essential to have a knowledge of the legislation that are likely to affect the product area, e.g. noise level…Consider it at the international, national and local level. Patent searches should be carried out to discover: Any patents exist in your product area. Any patents exist in analogous product areas. Are you likely to infringe on them when you come to design?
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21 Information Collection Reports, proceedings and reference books Manufacturers of competitive and analogous products Official and private representative bodies Trade associations, consumer associations Statistical data Market data publications Market survey
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22 Information Analysis Parametric analysis Needs analysis Matrix analysis
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23 Needs Analysis
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24 Product Design Specifications (PDS) Control document that drives the design process PDS is NOT product specifications but DESIGN specifications. It defines the boundary of the design activities.
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25 PDS Contents The PDS must be comprehensive and unambiguous: 1. Performance (e.g. speed, load,…) Attainable economic 2. Environment (e.g. temperature, humidity, noise…) 3. Life in service 4. Maintenance 5. Target product cost Target product cost should be established from the beginning and checked against existing or like products. (A budget is important.) 6. Competition Patent, literature, market search
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This note was uploaded on 07/31/2011 for the course ME 250 taught by Professor Limian during the Spring '11 term at Shanghai Jiao Tong University.

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L7-design_process - VM250 Design and Manufacturing I...

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