1. Product Analysis & Design Analysis Use knowledge to determine a state Leads to single answer Design Multiple answers possible Process includes: Creativity Evaluation Decision – choices Reproduction – recreating existing designs

2. Analysis & Design Analysis: Given: Beam dimensions, allowable stress Determine: the maximum allowable load Design: Given: Load to be carried, allowable stress Determine: Best possible shape Reproduction Copy the beam from last year’s design

3. Analysis or Design? Find the best route between home and the airport. Find the cutting pattern that wastes the least material in building a product. Find a way to prevent customers from burning their hands on a paper cup full of hot coffee. Find a way to stack cans so the smallest box can be used for shipping Find a way to mount a cellular phone in a car for hands-free operation. Find a way to use GPS to automatically pilot a car.

4. Good Design Works all the time Meets technical requirements Meets cost constraints Requires little or no maintenance Is safe Creates no ethical dilemma

5. Bad Design vs. Good Design Listens to new ideas Has all the answers Considers a variety of solutions before picking a design approach. Tunnel vision – pursues the first idea that comes to mind. Project not complete at the first sign of success Ships product without thorough testing. Never content to design solely by trial and error Thinks trial and error is engineering design Says: I need to understand why this works. Lets consider other ideas. Says: Why won’t this work? Betty did it this way! Good enough!

6. Design Failure - TMI As Designed:Better Design:

7. Reverse Engineering Start with an engineered product Analyze the design Function Materials Dimensions Features Determine the original design problem Decide if it can be improved