ENGINEERING DESIGN PROCESS

Engineering Design Process We will use the Engineering Design Process to complete all of our Physics Labs this year.

BIOLOGYGUY © Many of you have the latest android or iphone. Or perhaps you have the latest games console. All of these amazing and awe inspiring inventions started out on a piece of paper. The person that created them followed a series of procedures that we call the DESIGN PROCESS. Dude that is not the Iphone! I know it is one of those retro flip phones!

Engineers, scientists and inventors follow the design process, when they create a solution to a problem. The design process is outlined below: BIOLOGYGUY © BIOLOGYGUY ©

1. QUESTION BIOLOGYGUY © The first step of the design process is to identify the problem. Really question the problem that you are addressing. This is a good time to question the design constraints and criteria. DESIGN CRITERIA AND CONSTRAINTS: Who is it for? (Client) What budget do you have? How long do you have to make it? What materials can you use? What scientific principles need to be applied?

If a scientist or engineer knows the design tasks criteria and constraints, there is an increased likelihood that the design solution will be successful. Imagine if a scientist was engineering a hover board. If they were un aware of the design constraints and criteria, they might make it out of the wrong materials; making it too expensive. Or they might not give it enough power, meaning it will not be able to lift the rider. BIOLOGYGUY © CRITERIA Must lift someone that is over 200lb Must cost less than $300 to produce Must be made from light weight materials; plastic, wood, aluminum This hover board does not even hover!

BIOLOGYGUY © 2.RESEARCH / BRAINSTORM Every idea starts on a piece of paper. You need to write down and draw every idea that you have that relates to the design problem. You also need to research, to see what design solutions are already out there. You do not want to design something that has already been created. No idea is too silly

3&4. DEVELOP POSSIBLE SOLUTIONS / PLAN BIOLOGYGUY © 3&4. DEVELOP POSSIBLE SOLUTIONS / PLAN 3. Once you think that you have a reasonably good design solution, you need to draw preliminary ideas. 4. As a team, select the best idea board thrust

5. DRAW YOUR DESIGN TO SCALE BIOLOGYGUY © Your drawing always has to be drawn on graph paper to scale. Design and define your scale. Create a legend (scale) at the bottom of your drawing. Once you have built the model you can test it to see if it works

6. TEST AND RECORD YOUR DATA Once you have built the model you can test it to see if it works. Create your data tables to record your data

7. WRITE YOUR SUMMARY Explain your results from Step #6. Did your idea work? Why or Why Not? If your idea was successful, what made it successful? What can you do differently? **Always glue a picture of your final design in this step.

8. REDESIGN It is still missing something BIOLOGYGUY © Once you have tested your prototype model take a good look at it. Question whether it meets the design criteria and design constraints. If there is any doubt, you need to see how you can improve your model. You might have to repeat steps 1-4 in order to improve your model Do not be afraid to start again from scratch. Scientists and engineers often ditch their original plans and start over again. It is ok. It is still missing something I think I am going to start over!

ASSESSMENT Engineers plan to develop a new drill for use on oil rigs. What should the engineers do first in order to develop the new drill? conduct research on features for the new drill build a prototype of the new drill determine the materials needed to build the new drill design a computer model of the new drill

Marshmallow Challenge You will see the importance of having a systematic method for solving a problem as you complete this challenge.