Lect 23P. 1

1
The Design Process

• Lecture 23

2
The Design Process

• Overview of the process
• Design versus other aspects of engineering
• Steps in the design process
• Communication skills

References BTG, Chapter 14 Section
1.2.2, Tools and Tactics of Design, Dominick,
et al, Wiley, 2001
3
The Design Process

• Design is the most creative part of the total
  engineering process.
• Engineers will typically engage in a variety of
  activities in their careers.

• They may include
• Research
• Development
• Testing
• Manufacturing
• Technical Service
• Construction
• Sales
• Management
• Design

4
Engineering Design

• Engineering design
• sometimes is the creation of an original product
• typically is the refinement or modification of an
  existing product

REF Technical Graphics,p664
5
The Design Process

• Starts with recognition of the need for the
  product.
• Both design and redesign require knowledge of the
  intended use of the product, plus information on
  the
• Market
• Technical data
• Materials and production
• For any product design you are part of a team !

6
The steps in the design process.

• Determine the need
• Starts with recognition of a need
• Sketching of the solution (product) is very
  useful during this step.
• Establish Known Information
• Includes gathering information on aspects of the
  products such as possible materials, market
  analysis, ability to manufacture, cost to
  manufacture, etc.

7
The steps (continued)

• Stimulate Design Concepts
• Consider the various aspects in the manufacture
  of the product such as material, shape, etc.
• Investigate Design Concepts with Analytical Tools
• Use modern methods and tools to analyze design
  alternatives.

8
The steps (continued)

• Gather all information and review
• Gather together all information and design
  alternatives and review so that decisions can be
  made.
• Test the design that appears best.
• Accept, Modify, or Reject
• Optimize the design by iteration

9
Design in the today environment

• Engineering design has undergone significant
  change when compared to 20 years ago.
• Teamwork is paramount in the modern workplace.
• Computer applications for analysis of a design
  are essential.
• Other major concerns in the modern design process
  
• Safety and environmental protection
• Product reliability
• Engineering Ethics

10
Technical communications

• As engineers work as a part of a team,
  communication skills are very important
• In the engineering field, one is rarely judged on
  the quality of ones technical work alone. The
  ability to communicate your ideas and what you
  have done is crucial.
• Good communication skills (both oral and written)
  take practice
• This include skills such as writing, sketching,
  using CAD tools, etc.
• Giving presentations