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
/ 14
Design Problem Solving
Analysis Decision Making
– Picking the Best Among Alternatives
Need to Develop Alternatives Information Processing
– Blue Print to Part– Symbol Analyst
2
/ 14
Information
Received– Journals– TV– Colleagues
Processed – Analysis– Synthesis
Transmitted– Drawings– Documents– Presentations
3
/ 14
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
4
/ 14
3 Types of Design
Original– New Products– New Ideas (patents)
Adaptive– Known system to a changed
task– ABS, High Performance
Aircraft → Car
Variant – Vary size– Vary arrangement– Same task
• braking truck• braking car
Redesign– Adaptive – Variant – Bulk of Design Work
5
/ 14
3 Major Design Issues
Cost Quality Time
6
/ 14
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
7
/ 14
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 does
8
/ 14
Honda Personal Transporter
9
/ 14
SoloWheel Personal Transporter
10
/ 14
Segway Personal Transporter
11
/ 14
Segway Personal Transporter
12
/ 14
Segway Personal Transporter
13
/ 14
Broken Neck
14