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