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Engineering Design Process
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- Engineers use science, math and creativity to solve problems.
- Engineers use the "engineering design process," which is composed of 3 simple phases.
- First, define an engineering problem, then develop possible solutions, and finally optimize the design solution.
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Discussion Questions
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Before VideoWhat are some examples of problems with technology that you would like to have solved?ANSWER
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Answers will vary but might include my internet is slow, my phone doesn’t hold a charge for very long, or the microphone on my computer has static.
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Answers will vary but might include too much traffic on the freeway, too much time spent waiting for the bus, or too much air pollution from cars.
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Answers will vary but might include sports equipment is expensive, helmets hurt players’ heads, or running shoes wear out quickly.
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Answers will vary but might include shaking a phone to charge it when it is low on battery, using electric flying drones to transport people above traffic, or making helmets out of lightweight carbon fiber.
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Using online or print resources, interviewing experts, polling users, and testing products are ways to gather information about these problems.
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You can communicate ideas by drawing or sketching them, creating presentations, hosting meetings, developing websites, or writing articles and blog posts.
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After VideoWhat is the engineering design process?ANSWER
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The engineering design process is a series of steps that engineers use to help come up with a solution to an engineering problem.
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You must define the problem, including listing all of the criteria and constraints.
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You could brainstorm, research, test materials, sketch, diagram, develop a CAD (computer-aided design), or build a model or prototype.
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You can optimize a design solution by testing and analyzing results to come up with new ideas to improve the design that will better meet the criteria and constraints.
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Criteria and constraints are used to determine if the design solution is successful and to help decide between competing designs.
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Answers will vary but might include mechanical engineers working on engines to make them faster or more fuel efficient, electrical engineers working on how to connect all the motors to an energy source in a robot, or chemical engineers working on how to dissolve or recycle plastic waste.
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Vocabulary
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Engineering
DEFINE
The use of scientific, mathematic, and design principles to solve problems.
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Defining the problem
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The first step of the engineering design process, which defines the purpose, criteria, and constraints of an engineering solution.
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Design criteria
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The requirements for success of an engineering solution.
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Design constraints
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The limitations placed on an engineering solution.
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Research
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The gathering of information about ideas related to an engineering solution.
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Optimizing design solutions
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The continual process of testing and improving a design solution.
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Mechanical engineers
DEFINE
Engineers who solve design problems using their knowledge of math and physics to develop solutions such as the mechanical systems in robots, cars, and airplanes.
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Civil engineers
DEFINE
Engineers who solve design problems using their knowledge of the physical and natural environment to develop solutions such as constructing roads, airports, and bridges.
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Electrical engineers
DEFINE
Engineers who solve design problems using their knowledge of electricity and electric currents to develop solutions such as electrical circuits in robots, cars, and computers.
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Chemical engineers
DEFINE
Engineers who solve design problems using their knowledge of chemistry and chemical reactions to develop solutions such as new fuels, medicine, and new materials.
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Engineering
DEFINE
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Reading Material
Download as PDF Download PDF View as Separate PageWHAT IS THE ENGINEERING DESIGN PROCESS?The engineering design process is a series of steps used by engineers to guide the creative process of solving problems. The number of steps may vary as well as the order in which they are used. However, there are three main phases of the engineering design process: define the problem, develop ideas, and optimize the design solution.
To better understand the engineering design process…
WHAT IS THE ENGINEERING DESIGN PROCESS?. The engineering design process is a series of steps used by engineers to guide the creative process of solving problems. The number of steps may vary as well as the order in which they are used. However, there are three main phases of the engineering design process: define the problem, develop ideas, and optimize the design solution. To better understand the engineering design process…LET’S BREAK IT DOWN!
Engineering Design Process
The engineering design process is a series of steps that engineers follow to help guide the process of coming up with a solution to a problem. Many versions of the engineering design process can be found online. Some have only six steps while others might have up to 19 steps! However, all of these versions of the engineering design processes have three main phases in common.
The first phase is defining the problem. This is when engineers figure out the exact requirements for the problem they are trying to solve. During the second phase, engineers develop possible solutions. This phase may consist of brainstorming, sketching, modeling, testing of materials, interviewing experts, or doing anything that can help inspire ideas for a possible design solution. During the third phase, engineers optimize the design solution by testing and improving their design until it has met all the design requirements. Although there are three main phases, engineers will jump around and repeat steps of these phases as necessary. The process is considered iterative because steps are repeated and not necessarily used in a linear order.
Engineering Design Process The engineering design process is a series of steps that engineers follow to help guide the process of coming up with a solution to a problem. Many versions of the engineering design process can be found online. Some have only six steps while others might have up to 19 steps! However, all of these versions of the engineering design processes have three main phases in common. The first phase is defining the problem. This is when engineers figure out the exact requirements for the problem they are trying to solve. During the second phase, engineers develop possible solutions. This phase may consist of brainstorming, sketching, modeling, testing of materials, interviewing experts, or doing anything that can help inspire ideas for a possible design solution. During the third phase, engineers optimize the design solution by testing and improving their design until it has met all the design requirements. Although there are three main phases, engineers will jump around and repeat steps of these phases as necessary. The process is considered iterative because steps are repeated and not necessarily used in a linear order.Defining the Problem
In the first phase of the engineering design process, engineers are either given a problem to work on or they observe the natural and designed world around them to figure out a problem that needs to be solved. Engineers are often trying to improve problems in our society, such as how to reduce pollution or how to make a machine to help doctors perform surgery. However, some engineers are asked to solve problems like how to make a race car move faster! The field of engineering is very broad, and engineers try to solve many different types of problems.
When engineers begin the process of solving a problem, they need to clearly understand the criteria and constraints of the design solution. Criteria are the requirements needed to be met in order for the design idea to be considered a success. Constraints are the limitations that are placed on the design idea, such as how much it costs to build, the materials that can be used, or the time allowed to finish the project. The criteria and constraints are used to not only guide the engineering design process but also evaluate competing design ideas and overall success of the design solution.
Defining the Problem In the first phase of the engineering design process, engineers are either given a problem to work on or they observe the natural and designed world around them to figure out a problem that needs to be solved. Engineers are often trying to improve problems in our society, such as how to reduce pollution or how to make a machine to help doctors perform surgery. However, some engineers are asked to solve problems like how to make a race car move faster! The field of engineering is very broad, and engineers try to solve many different types of problems. When engineers begin the process of solving a problem, they need to clearly understand the criteria and constraints of the design solution. Criteria are the requirements needed to be met in order for the design idea to be considered a success. Constraints are the limitations that are placed on the design idea, such as how much it costs to build, the materials that can be used, or the time allowed to finish the project. The criteria and constraints are used to not only guide the engineering design process but also evaluate competing design ideas and overall success of the design solution.Brainstorming and Research
During the second phase of the engineering design process, engineers begin to develop ideas for possible design solutions. A significant amount of time is spent brainstorming. Brainstorming can happen both individually and collaboratively in a group. Brainstorming is an informal, creative process used to generate ideas. Engineers often sketch and label diagrams and take notes about ideas that could be used for the design solution. All ideas are documented, but none of them are judged during brainstorming. It is all about getting the ideas on paper!
Research is generally done after brainstorming to see if any of the ideas documented can be enhanced or have already been developed. Research is when engineers use online or print resources, test materials, and interview experts or users of a product to gain more information about the problem they are trying to solve. Engineers will often go back and forth between brainstorming and research.
Brainstorming and Research During the second phase of the engineering design process, engineers begin to develop ideas for possible design solutions. A significant amount of time is spent brainstorming. Brainstorming can happen both individually and collaboratively in a group. Brainstorming is an informal, creative process used to generate ideas. Engineers often sketch and label diagrams and take notes about ideas that could be used for the design solution. All ideas are documented, but none of them are judged during brainstorming. It is all about getting the ideas on paper! Research is generally done after brainstorming to see if any of the ideas documented can be enhanced or have already been developed. Research is when engineers use online or print resources, test materials, and interview experts or users of a product to gain more information about the problem they are trying to solve. Engineers will often go back and forth between brainstorming and research.Developing Possible Solutions
After engineers have brainstormed and researched, they begin to more fully develop one or more design solutions. Sometimes a model is drawn with labels explaining the inputs, outputs, and flow of energy within the system they are developing. Sometimes a three-dimensional computer-aided design (CAD) model is developed that shows how the parts of the system move and interact with one another. These models are used to choose the best idea, which usually leads to the building of a prototype.
Developing Possible Solutions After engineers have brainstormed and researched, they begin to more fully develop one or more design solutions. Sometimes a model is drawn with labels explaining the inputs, outputs, and flow of energy within the system they are developing. Sometimes a three-dimensional computer-aided design (CAD) model is developed that shows how the parts of the system move and interact with one another. These models are used to choose the best idea, which usually leads to the building of a prototype.Optimizing the Design Solution
A prototype is a first, or preliminary, model that is built to demonstrate and test the functionality of a design solution. Engineers will perform tests and collect data on how well the design solution meets the criteria and constraints. These data are analyzed and used to develop new ideas to help improve the design. This is the third phase of the engineering design process during which engineers will repeatedly test and improve their design solutions in order to optimize the test results.
Optimizing the Design Solution A prototype is a first, or preliminary, model that is built to demonstrate and test the functionality of a design solution. Engineers will perform tests and collect data on how well the design solution meets the criteria and constraints. These data are analyzed and used to develop new ideas to help improve the design. This is the third phase of the engineering design process during which engineers will repeatedly test and improve their design solutions in order to optimize the test results. -
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