ENGR 1402 Chapter 2

1
ENGR 1402 Chapter 2

• Engineering Design

2
Engineering Design

• Systematic process by which solutions to the
  needs of humankind are obtained
• Often completed through teamwork
• Involved in the process of complex problem
  solution with teams of professionals

3
Design Process

• Identification of Need
• Problem Definition
• Search
• Constraints
• Criteria
• Alternative Solutions
• Analysis
• Decision
• Specification
• Communication

4
Design Process

• Iterative
• Result should solve the problem in the optimum
  manner

Design is both an art and a science!!!
5
Design Tools

• Mathematics
• Science
• Computers
• Library
• Internet
• Personal Contacts

6
Blooms Taxonomy

• Describes 6 levels of cognitive ability
• 4 levels involve convergent thought
• 2 levels (most complex) involve divergent thought
  see pages 85 86 of text
• Knowledge
• Comprehension
• Application
• Analysis
• Synthesis
• Evaluation

7
Search SourcesALWAYS Record Locations!!!!

• Existing Solutions
• Internet
• Library
• Government Documents
• Personal Contacts

• Professional organizations
• Trade Journals
• Vendor Catalogs
• Experts

8
Common Design Criteria(How One Idea is Judged
Against Another)

• Cost
• Reliability
• Weight
• Ease of Operation Maintenance
• Feasibility
• Acceptance

• Appearance
• Compatibility
• Safety
• Noise Levels
• Effectiveness
• Durability

9
Alternative Solutions

• Use of check-off lists beneficial to help direct
  thinking
• Brainstorming sessions dont worry about
  feasibility or practicality
• Get started then narrow down

10
Decision

• May involve payoff function
• Want to optimize the design
• Usually involves trade-offs
• Decision matrix weighted criteria values
  objectively evaluate alternatives