To: *insert instructor name here*, Director of Engineering, Q-Connect Engineering

Transcription

1 AWARD OF CONTRACT From: TESLA To: *insert instructor name here*, Director of Engineering, Q-Connect Engineering Date: April 24, 2018 Dear *insert instructor name here*, This is to inform you that our team at TESLA has selected Q-Connect to be in charge of the airpropelled vehicle logistics plan. Your team will need to consider the vehicle s distance travelled and the accuracy, as well as the social, environmental, and economics of the design. We require a report clearly outlining the design process you intend to use and then our engineers will use your report to develop all the necessary technology for the project. Please ensure it is detailed and clearly communicated. Sincerely, Scott Compeau TESLA 1

2 ENGINEERING DESIGN PROCESS It is common with the engineering design process to complete many iterations until the final design is appropriate. Iterative design is based on the cyclic process of planning, prototyping, testing, analyzing and refining your project. Iterations can be made throughout the cycle or traditionally after testing has been done on the prototype. Based on the results of testing, iterations are made to improve product quality. Typically, designing a product is never completed in a single attempt. This process ultimately improves the quality of a design. Here are a few examples of a design process that might be useful. 2

3 SCENARIO Sustainable engineering is becoming increasingly important for global health and well-being. In particular, there is an international emphasis on the need for sustainable transportation (e.g. electric vehicles, Elon Musk s Hyperloop). Your team works for the Q-Connect Engineering Firm and has been awarded a contract by TESLA to develop a design and prototype for a vehicle propelled by air, possibly for future manufacturing as a sustainable method of transportation. Your task is simple but challenging: develop a small-scale prototype vehicle uses propulsion energy (i.e. balloon) that can travel at least 5 meters (measuring for distance) as well as stop at exactly 1 meter (measuring for accuracy). Your team will have four attempts to demonstrate this. Performance, economic, environmental and social aspects will all play a key role in your overall assessment. Your team could become a leader in sustainable vehicular engineering! Based on our initial proposal to TESLA, the maximum budget for this phase of the project is $500. The only material that you must use in your design is a balloon and a list of all other available materials to build your prototype is attached at the end of this package. There are two deliverables for this project: 1. Submit a proposal for your project, that will need to be approved by *insert teacher name here*, the Director of Engineering at Q-Connect. 2. Build/test your prototype, and reflect upon your design, to present to TESLA. As stated in the award of contract, a large emphasis is be placed on the distance travelled, vehicle accuracy, and the environmental, economic and social impacts of the design. POSSIBLE MATHEMATICS TO HELP ILLUSTRATE THIS SCENARIO Possible Diagram? Possible Equations? Relevant information? 3

4 DELIVERABLE #1 PROPOSAL STEP 1 - DEFINE THE PROBLEM: What problem are you hoping to solve? What are your main project constraints? STEP 2 IDENTIFY CONTRAINTS: What are the social considerations for this project? Keep in mind the purpose of the project as a learning tool for sustainable transportation and reducing greenhouse gas emissions. What are the environmental considerations for this project? What are you going to do to reduce the effects of negative social/ environmental impacts? 4

5 STEP 3 - BRAINSTORMING POSSIBLE: First, using some white boards or space around the room, participate in a brainstorming activity (refer to post-it notes or mind map strategies)! Once you have all of your ideas in front of you, think about how you can combine them to make a better design group and then sketch two ideas. Feel free to use extra sheets of paper. Idea 1: Idea 2: What materials will you be using for each idea? Make a rough list of materials below. Idea 1: Idea 2:

6 STEP 4 SECLECT A DESIGN: Using a Pros and Cons table (or other evaluation tools) think about your two designs. Make sure to consider the cost of the materials, social and environmental impacts of your materials and design, and the quality of the design. When you are finished, please circle which idea the team is selecting to move into phase two of the design. Idea 1 Idea 2 Cons Pros 6

7 STRUCTURAL MATERIAL COST AND SCORES Structural Materials Cost per unit Enviro & Social Score Explanation Cardboard $10/ strip 1 Recyclable Popsicle Sticks $20/ 5 sticks -1 Widely available, but leads to local deforestation for production Paper Cups $10/ cup 2 Made from recycled materials Straws $5 / 6 straws 0 Made locally and produces jobs around the community Wooden Dowels $15/ large; $5/small -2 Unethical treatment of workers Tissue Paper $1/ 5 sheets 0 Toxic dyes are used to colour the paper. Company has been actively working to reduce homelessness in the city Construction Paper $5/ sheet 1 The local art store provides the paper which stimulates the local economy Bottle Caps $15/cap 1 Reused product (i.e. Limited supply) Ping Pong Balls $10/ball -2 Harmful greenhouse gases released from production Styrofoam Balls $5/small; $10/big -1 Non-biodegradable Duct Tape $35/ 1 meter of tape -2 Production has a large carbon footprint. Cannot be produced locally Hot Glue $25/ stick of glue 0 Buy in bulk, large container has less impact on the environment Rubber Bands $10/ bundle 1 Sold locally by a small business owner Pipe Cleaners $1/ pipe cleaner -1 Hard to clean and gets dirty easily, frequently requires a lot of water to wash String $5/ meter 1 Biodegradable Aluminum Foil $20/meter 1 Aluminum is naturally occurring 7

8 COST ANALYSIS: This final component of your proposal and the considerations is the economics. Use the following table to calculate the total cost of your using the provided material information. When you have completed the proposal, it will need to be approved by *insert teacher name here*, the Director of Engineering at Q-Connect. A. Material B. Cost per Unit C. Environmental score per unit D. # Units Cost for all units (B x D) Environmental score for all units (C x D) Total : $ 8

9 DELIVERABLE #2 PROTOTYPE AND PRESENTATION Please use your proposal as a guide to build your prototype. Remember that you can iterate your design when needed (STEP 6), but to record the changes for the final report and presentation. STEP 5 - TESTING AND EVALUATING YOUR DESIGN 1 You have a device 2 Marginal Performance 3 Meets Expectations 4 - Exceeds Expectations 5 Outstanding Score Design proposal Mark out of 5 possible 1 for minimal description; 2 for adequate description; 3 for thorough but concise description /3 Simplicity & Efficiency of Design Many components irrelevant to design; difficult to set up; does not perform well Some components irrelevant to design; difficult to set up; does not perform well with multiple uses Coherent design; no irrelevant components; relatively easy to set up; performs well with multiple uses Excellent design; relevant and components; quick set up; performs well with multiple use Excellent design; relevant and efficient components; fast set up; performs well after multiple uses - no failure /5 Aesthetics & Impression Care has not been taken in design and fabrication of device; design is not well finished Some care has been taken in design and fabrication of device Care has been taken in design and fabrication of device; well finished Care has been taken in design and fabrication of device; well finished and interesting Extensive care has been taken in design and fabrication of device; well finished and eye-catching /5 Economic Score Total cost more than $600 Total cost between $500 and $600 Total cost between $400 and $500 Total cost between $300 and $400 Total cost less than $300 /5 Environmental Score Environmental score is equal to positive one Environmental score is equal to positive two Environmental score equal to positive three Environmental score is equal to positive four Environmental score is greater than or equal to positive five /5 Design Performance Erratic or minimally functional Device survives testing with some input, launches each time Device functions somewhat reliably with modest degree of accuracy Device functions reliably with relatively repeatable accuracy Device functions reliably with fully repeatable accuracy /5 Testing Deliverables Distance: Two Attempts Accuracy: Two Attempts 1 3 meters (1 point), 3 5 meters (2 points), 5+ meters (3 points) 30 cm of target (1 point), 20 cm of target (2 points), and 10 cm od target (3 points) /12 Total Score: /40 9

10 STEP 6 COMMUNICATE: Upon the completion of the testing and evaluation phase, each team must create and deliver a presentation to *insert instructor name here*, Director of Engineering, Q-Connect Engineering, as a practice run before meeting with TESLA. The following topics should be discussed: - How did you use the design process to develop a prototype? - How did the social, economic, and environmental factors influence your prototype? - How is your design going to influence the society we live in today? - What is unique about your design that you want TESLA to know? - What were the results from your testing and evaluation phase of the design cycle? - What would you change for next time about how you completed the challenge? The following guidelines can be used to help each team member receive feedback to prepare for the TESLA presentation. Please reflect on this feedback for improvement in communication. 10