Transcript Unit 3 Inventions and Innovations. ETP 2006 – Jeff Pegg This material is based upon work supported the National Science foundation under Grant No.

Unit 3
Inventions and Innovations.
ETP 2006 – Jeff Pegg
This material is based upon work supported the National Science foundation under Grant
No. 0402616. Any opinions, findings, and conclusions or recommendations expressed in
this material are those of the author(s) and do not necessarily reflect the view of the
National Science Foundation (NFS).
The Attributes of Design
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Is Purposeful.
Has Requirements.
Is Systematic.
Is Iterative.
Is Creative.
Has Multiple solutions.
Is Purposeful
• The Design process must have a purpose
or it is simply not technological design or
engineering design.
• The purpose is obvious, the designer is
trying to solve a problem, meet a need, or
develop a new product.
Requirements
• Requirements consist of two (2) parts.
• Part one (1) Over view.
– Gives the information on what the project
must do. Example: You must design a vehicle when rolled down a
ramp it will travel the greatest distance and in the straightest line.
Part two (2) Constraints or limitations.
Gives specific information about the
project. Example: You will be given a piece of wood ¾”X1-1/2”X6”
two (2) sets of wheels, weights and other materials that will be approved
by your instructor.
The design must be Systematic
• Use a deliberate approach.
• Design, Build, Test, Redesign, Rebuild,
and Retest until the project goal has been
reached.
• With the concept the mistakes of the
design will be eliminated.
The Design must be Iterative
• Is the design repetitive?
• Can the design be rebuilt easily?
• Why do Car makers use the basic car
design for 3-5 years?
1967 Chevy Pickup
1972 Chevy Pickup
Picsearch.com
Picsearch.com
Creativity
• Creativity must be used to solve problems.
• Using brainstorming and seeking other
areas of expertise are ways to be creative.
• Think outside the box or envelope.
• What do you think of when I say a trike?
Multiple solutions
• There is always more than one (1) way to
solve a problem.
• Creative solutions must be valued in
designing a solution to a problem.
• The first solution may not always be the
best.
• Lets travel by air?
www.bushwackerair.com
www.east-west-camera.com
www.airbrokersnet.com
Engineering Design
The process for designing solutions to technological or
engineering problems.
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9.
Identify the problem.
Define the problem (refine).
Gather information.
Develop alternative solutions.
Select and refine the best solution.
Express the design. (Sketch or Draw)
Build a prototype.
Evaluate, revise and refine solution.
Communicate the solution.
Troubleshooting and
Experimentation.
• Troubleshooting is needed to help get a
design to work satisfactory.
• When a model is built the flaws of the
design will be come obvious and the
designer will have to repair the defect.
• Experimentation is used to help in material
selection of the design or construction
methods by using different methods of
design.
Standards and Benchmarks.
• Standard 8: Students will develop and understanding of
the attributes of design.
– Design is a creative planning process that lead to useful
products and systems.
– There is no perfect design.
– Requirements for a design are made up of criteria and
constraints.
• Standard 9: Students will develop an understanding of
engineering design.
– Design involves a set of steps, which can perform in different
sequences and repeated as needed.
– Modeling, testing, evaluating, and modifying are used to
transform ideas into practical solutions.
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Source: Valley City State University (2006) Invention and Innovations.
Retrieved May 7 2006 from WWW.HTTP://WWW.VCSU.EDU