lecture 02 design problem solving...
TRANSCRIPT
Design and Problem SolvingME – 2110
Creative Decisions and Design
Thomas R. Kurfess, Ph.D., P.E.HUSCO/Ramirez Distinguished Chair in Fluid Power and Motion Control
Woodruff School of Mechanical EngineeringGeorgia Institute of Technology
Atlanta, Georgia USA
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Design & Problem Solving
Analysis Decision Making
– Picking the Best Among Alternatives Need to Develop Alternatives Information Processing
– Art to Part– Symbol Analyst
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Information
Received– Cloud / web– Media (Podcast / Blog / TV / Journals)– Colleagues (Face-2-Face / Social Media)
Processed – Analysis– Synthesis
Transmitted– Models (Drawings)– Documents– Presentations
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Phases of Design
Customer– Understand the Design Process
Specification Development– Specification of Information
Conceptual Design– Specification of a Principle– Functional Decomposition– Generate Concepts– Concept Evaluation– Concept Selection– Preliminary Design/Embodiment
Detail Design Specification of Production
– Process Planning
Manufacture
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3 Types of Design
1. Original– New Products– New Ideas (patents)
2. Adaptive– Known system to a changed task– ABS, High Performance Aircraft → Car
3. Variant – Vary size– Vary arrangement– Same task (braking truck / braking car)
Redesign – Adaptive/Variant (Bulk of Design Work)
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3 Major Design Issues
Cost Quality Time
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Design Techniques for all Levels of Design Systems
Plants (Factories) Equipment (Machining Centers) Individual Machines (Lathe …) Assembly (Spindle Motor) Component (Bearing in Motor) Feature (Ball Track in Bearing)
– Something that is fabricated
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Energy Material & Information (EMI)
A design converts Energy Material & Information Main function
– Basis for customer requirement– Essential problem– Crux of problem
Need to understand the problem statement Example
– Design Bolted Joint vs. fasten 2 pieces of metal Function
– What you want to do - changes (manipulates) EMI Behavior
– What it does8
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Honda Personal Transporter
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SoloWheel Personal Transporter
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Segway Personal Transporter – A Cool Device?
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Segway Personal Transporter – Unstable Response
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Segway Personal Transporter - Instability
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Broken Neck
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