Design_2_Slide_Show_Fall_2016 upload.pptx - Design#2 ENGR 111 Fall 2016 Identfy the Need Overall Design Process Defne the Soluton Sta ke h er Wa nts

Design_2_Slide_Show_Fall_2016 upload.pptx - Design#2 ENGR...

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Design #2 ENGR 111 – Fall 2016
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Overall Design Process Engineering Spe cifcatons Stakeholder Wa nts Implement the Soluton Defne the Soluton Ideate Possible Solutons Understand the Need Identfy the Need
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Overall Design Process (Review) 1. Identfy the Need What do we need that we don’t have? 2. Understand the Need What does it need to do? How well does it need to do it? 3. Ideate Possible Solutons Of all the ways to do this, which one do we choose? 4. Defne a Soluton Does it meet specifcatons? 5. Implement the Soluton Put the soluton into acton
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WHAT versus HOW (Review) Engineering Spe cifcatons Stak eholder Wants Implement the Soluton Defne the Soluton Ideate Possible Solutons Understand the Need Identfy the Need HOW (More Concrete) WHAT (More Abstract)
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WHAT versus HOW Previously, we tried to convince you of the importance of thoroughly understanding the problem before you try to devise solutons This leads to a more efficient overall process This prevents solving the wrong problem This is often not as fun as brainstorming solutons, but it must be done Will make the soluton process more productve Understanding the need culminates in a set of Engineering Specifcatons Ultmately, a scorecard for our proposed solutons
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WHAT versus HOW We will spend today’s class on HOW Ideate Solutons Defne the Soluton We’ll learn techniques for generatng ideas We’ll learn techniques for evaluatng ideas
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Engineering Specifications (Review) We express our understanding of the need with a list of engineering specifcatons Each specifcaton consists of three parts 1. Metric 2. Number or range of numbers 3. Proper Units Examples: •. Maximum bending stress less than 32.0 ksi •. Vertcal acceleraton less than 6 g’s •. Operatng temperature between 1500 and 1750 degrees C
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Engineering Specifications – Metrics (Review) From The Mechanical Design Process by Ullman
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Engineering Specifications (Review) Also a good idea to take note of where the specifcaton came from Customer Governmental regulatons Website Conversaton with an expert Technical handbook
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Engineering Specifications (Review) The Engineering Specifcatons are used as a scorecard To judge possible solutons To determine whether the chosen soluton really meets the need If a soluton doesn’t meet all specifcatons, it is not a viable soluton
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Ideate Solutions In this step of the process, we want to generate as many possible viable solutons as possible At this point, it is assumed that you have been working on a partcular design process long enough to have the general requirements in mind Put the Engineering Specifcatons away for this process We don’t want to be critcal or judge these ideas These ideas are raw material to be worked with later
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Techniques to Generate Ideas Brainstorming 6-3-5 Patent Searches Studying similar problems/technologies Reference books or industry handbooks General web searches
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