Designing a Product

Product design is usually a problem that requires a creativeDesign and/or manufacturing solution .

Design Process

1. A situation is posed or confronted that requires a practical solution.

2. Analyze the situation (discussion and clarification)

3. Write a brief (clear definition of the problem to be solved)

Design Process

4. Carry out research (patent review etc.)

5. Develop design specification (design limits)

6. Develop conceptual design solutions

7. Select a preferred solution

Design Process

8. Prepare working drawings and plan ahead

9. Construct a prototype

10. Test and evaluate design

Social Impact

Does the design help our lives?

Is it environmentally friendly?

Is society better off with the product?

Does it inspire others?

……..

Ethics in Design

Reconciling conflicting obligations e.g.,meeting client interest and public obligations.

Good judgment should be exercised.

Engineering Design

Is the process of converting an idea or market need into the detailed information from which a product, process or system can be made

Markets are Dynamic

Some characteristics of their changes:

• Increasingly complex products

Vast amounts of information from many different fields must be handled during the design process

• Large design teams

Seldom an individual can undertake the complete design process; large teams are often necessary, with potential communication problems

Markets are Dynamic

• Pressures from external influences

with advancing technology, user expectations are rising. Competition is intense and new products with improved value to customers are continually appearing.

Increasing concern with individual and environmental safety and product liability.

Conceptual Design Phase

Concepts with the potential of fulfilling the requirements listed in the target specification must be generated.

Overall functional and physical relationships must be considered and combined with preliminary embodiment features.

Open-Ended Problems• Do not have unique “correct” solutions, though some

solutions are clearly better than other.

• Problem statements are generally vague and considerable

clarification is needed before design work can commence.

• There is seldom sufficient information, additional info about

requirements and constraints should be gathered and put into

a clear DEFINITION OF THE PROBLEM

Open-Ended Problems• CRITERIA for use during EVALUATION should be

established; they are the basis for a DECISION.

• CREATION must be stimulated by IDEAS and supported

by KNOWLEDGE.

• FEEDBACK loops are essential.

Analytical Problems:

• Subject area well defined

• Problem precisely stated

• Sufficient information, often a model, is supplied

• “Correct solution” available

ProblemDefinition

Jan. 14/16

Preliminary Design

Jan. 21/23

PreferredSolution

Jan. 28/30

DetailedDesign

Feb. 4

DesignPresentation

April. 22

Group Report

April. 29

Get manySolutions

Report Due“Written

Specifications”For a selected

Design

Jan. 28

Must have aGantt Chart

1.Drawings2.Fabrication3.Prototyping

4.Testing1st Presentation

Feb. 11

UseSpring Break

for fixingproblems

Logistics 1

Logistics 2

Progress Report

Due on every Tuesday

-What was discussed?

-Action Items

2 Weeks 1 Week 2 Months 1 Week