Engineering Design Process PDF

Engineering Design Process (EDP) Unit 1, Lesson 2 The Engineering Design Process What is the big idea? Engineering Design Process is a systematic, iterative problem solving method which produces solutions to meet human wants and desires What is the Scientific Method? The Scientifi...

Engineering Design Process (EDP) Unit 1, Lesson 2 The Engineering Design Process What is the big idea? Engineering Design Process is a systematic, iterative problem solving method which produces solutions to meet human wants and desires What is the Scientific Method? The Scientific Method is a LINEAR method for conducting an investigation that involves seeing and performing an experiment to test a hypothesis. What is Engineering Design? Engineering Design Process is a SYSTEMATIC, INTERATIVE problem-solving method that produces solutions to meet human needs and wants.  Engineering Design Process Communicate Define problem Results Refine the Design Brainstorm Test and Evaluate Generate ideas INTERATIVE Research Ideas and Model/Prototype Explore Possibilities Develop a Written Design Proposal Identify Criteria and Specify Constraints Consider Select Approach Alternative Solutions Steps of the Engineering Design Process 1. Defining a Problem By defining the problem, the designer clearly outlines what human need or want exists to solve the problem Often design problems are not clearly defined; designers may have to investigate to define the problem. For example, a company might call you in and ask you to solve the problem of the company losing money It would be up to you to determine why the company is losing money and exactly what the problem is you need to fix to help them stop losing money Steps of the Engineering Design Process 2. Brainstorming After defining the problem, designers begin to generate ideas without consideration of limitations to the design Brainstorming is a group problem-solving design process in which each person in the group presents his or her ideas in an open forum Brainstorming sessions can be individuals or in groups Steps of the Engineering Design Process 3. Generating Ideas This is a step where designers can let their imaginations run free with suggestions from the brainstorming session Steps of the Engineering Design Process 4. Research Ideas and Explore Possibilities After brainstorming, designers must conduct research to determine if a solution to the problem already exists, there is another solution/product that could be adapted to solve the problem or there may be mathematical or scientific information related to the problem that needs to be collected through research Designers begin to explore the possibilities generated during the brainstorming session and the research gathered Steps of the Engineering Design Process 5. Identifying Criteria and Specifying Constraints Identifying criteria and specifying constraints will provide the basis for what the design should be and what its limits are. Criteria are the guidelines for a design. Constraints involve the limitations on a design. The possibilities are measured up against the defined criteria and constraints. Steps of the Engineering Design Process 6. Consider Alternative Solutions Other solutions could work just as well as the one selected by the designer Other solutions might be simpler or less expensive and therefore more desirable Steps of the Engineering Design Process 7. Selecting an Approach Based on the analysis during the exploration of possibilities, the designer chooses the solution he/she feels best meets the criteria and constraints The selection of an approach is closely documented, in the event that the solution does not work and the designer needs to repeat steps of the design process Steps of the Engineering Design Process 8. Developing a Written Design Proposal A design proposal is a written plan that specifies what the design will look like and what resources are needed to develop it It can be communicated through sketches, drawings, models and written instructions Steps of the Engineering Design Process 9. Making a Model or Prototype Models allow designers to make a smaller version without having to invest time and money into making the larger item. Physical, mathematical and graphic models are utilized at this point in the design process A prototype is a model that performs exactly as the final solution would and is used for testing. A mock up is a model that physically looks like the final solution, but does not perform as the final solution Steps of the Engineering Design Process 10. Testing and Evaluating Models and/or prototypes are tested to evaluate how well the design meets the established criteria and to provide areas where refinement is needed Data is collected from testing to assist in the next step Steps of the Engineering Design Process 11. Refining and Create the Design Based on the evaluation and testing results, designers refine the design of the product Refinement and optimization can include function (making it better), economic (giving it market appeal), and ethical (making it safer) The product is then mass produced to be sold to the target market Designers and Engineers work together to design a cost effective and time efficient process for producing the product Steps of the Engineering Design Process 12. Communicating Results Designers need to communicate their results to perpetuate innovation and so others with similar problems can learn from their design process Communication of the design process can include design portfolios, journals, drawings, sketches or schematics