1. 2
Engineering Design

2. Objectives for Today (9/16)
Define engineering design
Describe the steps of the engineering design process.
Highlight the engineering design process in the Marshmallow Design Challenge
Explain how to define a problem and its constraints.
Summarize the processes of creating and testing design solutions.
Explain how to communicate the final design solution.
Describe the purpose of an engineering notebook.

3. Engineering Design
Creative application of technology to design systems, products, or processes to solve problems or meet needs
yuyangc/Shutterstock.com

4. Engineers as Problem Solvers
Engineers use the engineering design process to solve problems/challenges
Take into account design parameters
Specifications: design requirements
Constraints: design limitations
Balance for optimization: best solution to the given problem/challenge given your specifications and constraints
Make trade-offs: losing or sacrificing one quality of your design in order to gain a different quality

5. Engineering Design Process
Series of systematic steps that helps guide engineers from problem identification to reporting design solution
No one set process, but all engineers use some sort of design process
Going back to previous steps in process is common

6. Common Engineering Design Process
Goodheart-Willcox Publisher

8. Step 1: Problem Definition
A process used by engineers to:
discuss and develop a clear statement about a given problem or challenge (problem statement)
define the constraints and requirements of the problem/challenge
This process involves:
Identifying a real problem from everyday life or being presented with a design challenge
Researching this problem to learn more
Developing a problem statement

9. Design Brief Guides the design process
Design brief includes constraints and criteria such as size, cost, safety, materials, and quality
Goodheart-Willcox Publisher

10. Step 2: Idea Generation Ideation
Brainstorming as many ideas or solutions as possible, without evaluating these ideas.
No wrong answers
More ideas lead to likelihood of good solutions
Goodheart-Willcox Publisher

11. Step 3: Solution Creation
Evaluate designs
Choose solutions
Communicate solutions
Can base drawings on rough sketches created when brainstorming
Renderings can be hand-drawn or computer-generated images
Detail drawings show size and shape and include specific dimensions
Best solutions must be selected and refined

12. Step 4: Testing/Analysis
Carefully sorting through options and analyzing strengths and weaknesses of each design
Testing your solutions and determining which design solution(s) are optimal

13. Step 5: Final Solution or Output
Mechanical drawings
Pictorial drawings
Orthographic drawings (multiview drawings)
Specifications sheets

14. Step 6: Design Improvement
No design is perfect and all designs can be improved in some way
Always room for improvement
Redesign product to be cheaper, safer, more effective

15. Engineering Notebooks
Used to record thoughts, ideas, sketches, calculations, and designs
Legal documents
Fixed binding
Never remove pages
Cross out blank space