1 2 The Design Process and The Engineers

1. 2 The Design Process and The Engineer’s Notebook

Words of the Day o o o Target Consumer – A group, in which a product is designed for. Design Process – A systematic problem-solving strategy. Engineers Notebook – A notebook used to record the evolution of a product. o It is sometimes used to prove who developed the idea with patent law suits.

Design Process 1. 2. 3. 4. Define the Problem clearly Collect Data (Identify criteria and constraints. ) Brainstorm (What’s already out there? ) Develop a design proposal (Includes sketches, materials, time frame, cost estimation, etc. ) 5. Make a prototype or implement solution 6. Test /Evaluate (Problem solved? ) 7. Modify/Refine

Rules for Brainstorming • o o No criticism allowed!! Work for idea quantity, develop as many as possible. Everyone contributes.

What are some team-working skills? - Dependable (Will you do your portion and correctly? ) - Collaboration (Work well with others? Control freak? ) - Task allocation (Do you evenly distribute the work? ) - Conflict resolution (Will you talk/listen to work it out? ) - Communication (Do you listen/speak effectively? )

Design Activity: Objective: In a team of two, design something that will hold a wooden triangle (point down), for 10 sec. You can’t hold it with your hand. Materials: 2 Sheets of printer paper 2 Rubber bands 1 strip of tape a foot long (12 inches) Ruler 1 wooden triangle 1 table - 2 nd step: Brainstorm, quantity…. not quality! - You must find 4 WORKABLE SOLUTIONS!! - Each person is responsible for two ideas, draw the sketches on your notes.

Aptera • • • The Aptera, the three-wheeled energy efficient car. Available in either an all-electric or a hybrid model. You get a top speed of 95 MPH - seats 2 comfortably A solar panel on roof powers climate control system. The hybrid model - 230 mpg - $29, 900 http: //www. youtube. com/watch? v=Qw. Hm 6 aef. GLQ

Design Criteria Designing normally requires consideration for: o Function (what’s its purpose, what does the design require) o Cost (should I reconsider the materials to reduce cost) o Aesthetics (appearance, does it look nice) o Material (what will it be made of, what’s appropriate) o Shape (does it have to be a certain height or size)

How do engineers communicate with each other? The Engineers Notebook: • Written ideas/Research • Sketches (preferably annotated) • Changes made along the way with dates • Calculations/Measurements