2. 3
Chapter
Engineering Design

3. Objectives Define engineering design.
Describe the steps of the engineering design process.
Explain how to define a problem and its constraints.
Identify various methods of ideation.
Summarize the processes of creating and testing design solutions.
Explain how to communicate the final design solution.
Describe the purpose of an engineering notebook.

4. Engineering Design Creative application of technology
Design systems, products, processes to solve problems or meet needs
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5. Teamwork Effective teams have varying skills, diverse backgrounds
Work together to solve problems
Respect, communicate, recognize, commit
Teamwork skills important to employers

6. Ethics Engineers must conduct selves in ethical way
Primary concerns are public safety, well-being
Truthfulness
Follow accepted standards
Work only in area of expertise

7. Engineering Design Process
Guides user from problem identification to design solution
Used by all engineers in some way
Reworking previous steps is common

8. Engineering Design Process
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9. Problem Definition Identify real problem Develop problem statement
Research
Develop problem statement
Define constraints
Create design brief
Includes constraints

10. Problem Definition
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11. Idea Generation Ideation Brainstorming
No wrong answers
Generate as many ideas as possible
More ideas increase likelihood of good solution
Brainstorming
Keep records, using sketches, words
Research

12. Solution Creation Evaluate designs Select, refine best solutions
Communicate solutions
Drawings
Computer-generated solutions

13. Evaluate Designs Rank criteria in order of importance
Give numeric value to criteria
Score designs based on meeting criteria

14. Communicate Solution Drawings Computer-generated solutions
Renderings, detail drawings, three-dimensional (3-D) models
Computer-generated solutions
Computer-aided design (CAD) software, computer numerical control (CNC) equipment
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15. Test/Analysis Engineers select best test to evaluate solution
Computer simulations
Prototypes
Rapid prototyping
Solutions can fail testing
Return to appropriate design process step, work through

16. Final Solution or Output
Mechanical drawings
Pictorial drawings
Orthographic drawings (multiview drawings)
Specifications sheets
On completion, sent to management, client for approval
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17. Design Improvement No perfect design Always room for improvement
Keep up with technology, marketplace demands
Use feedback to improve design

18. Reverse Engineering Examine existing products, processes
Disassemble for better understanding
Has ethical implications
Illegal to use patented ideas
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19. Engineering Notebooks
Written record of all information from project
Legal document
Fixed binding
Do not remove or add pages
Cross out blank space
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