Designing a Product Product design is usually a problem that requires a creative Design 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

Problem Definition Jan. 14/16 Preliminary Design Jan. 21/23 Preferred Solution Jan. 28/30 Detailed Design Feb. 4 Design Presentation April. 22 Group Report April. 29 Get many Solutions Report Due “Written Specifications” For a selected Design Jan. 28 Must have a Gantt Chart 1.Drawings 2.Fabrication 3.Prototyping 4.Testing 1 st Presentation Feb. 11 Use Spring Break for fixing problems Logistics 1 Logistics 2 Progress Report Due on every Tuesday -What was discussed? -Action Items 2 Weeks 1 Week 2 Months 1 Week