engineering design
DESCRIPTION
Engineering Design. Utilizing the Engineering Design Process. A Review…. Engineers Follow A Process. The Engineering Design Process is a step-by-step problem-solving strategy, with criteria and constraints, used to develop many possible solutions and then choose the best one. - PowerPoint PPT PresentationTRANSCRIPT
Engineering Design
Utilizing the Engineering Design Process
Engineers Follow A ProcessThe Engineering Design Process is a
step-by-step problem-solving strategy, with criteria and constraints, used to develop many possible solutions and
then choose the best one.
A Review…
The Engineering Design Process
Step 1- ASK
What is the problem?What exactly are you being
asked to do?
Step 1- ASK
What are the requirements?
What MUST your solution do?(Be a certain size? Hold a certain
amount of weight?)
Step 1- ASKWhat are the constraints?
A constraint is a limit to the design process. It may be things
such as appearance, funding, space, material, and/or human
capabilities.
Step 2- IMAGINEBrainstorm Ideas
Brainstorming is a method of shared problem solving in which
all members of the group spontaneously generate ideas in
an unrestricted discussion
Step 2- IMAGINEChoose the Best IdeaDiscuss your ideas. Determine if they meet the requirements and constraints. Then use a matrix to
compare each idea and decide which one is the best.
Option-List the things that are good about this design.
List the things that are not so good about this design.
Design Comparison Chart
Step 3- PLANDraw Your Design
Create a detailed drawing that clearly shows what your solution will
look like. This should include the exact criteria for your design.
Criteria is the desired specifications(elements or features)
of a product or system.
Step 3- PLAN
Gather Your MaterialsMake sure you have everything
you will need to create your design.
Step 4- CREATE
Follow Your PlanUse your drawings and materials to actually build, create, prepare,
etc. your design.
Step 4- CREATETest It Out
Try it and analyze the outcome.Analyze means to examine
carefully and in detail so as to identify causes, key factors,
possible results, etc.
Step 5- IMPROVEDoes it meet the requirements?
If not, begin the process again to find a solution to this problem. If
so, begin the process again to make it better.
Step 5- IMPROVEDoes it meet the
constraints?If not, begin the process again to find a solution to this problem. If
so, begin the process again to make it better.
Are You Ready to Apply This to A Real Life Situation?
PICTURE THIS…
You go out for a nice helicopter ride…
What do you do?
A Helicopter Can Land Safely if the Engine
Shuts Down while in Flight.
How?
AutorotationThe state of flight
where the main rotor system Is being turned by the
force of the relative wind rather than engine power
Aerodynamicsthe study of forces and the resulting motion of objects
through the air
4 Forces Of Flight
Lift the force that directly opposes the weight of an airplane and holds the airplane in the air
Weight
the force generated by the gravitational attraction of the earth on the aircraft; lift must be equal to weight in order to sustain flight.
Thrust a force applied to a body to propel it in a desired direction; the force which moves and aircraft through the air
DragResistance of the air (technically a fluid) against the forward movement of an airplane
Your Design Challenge…
Build A Better
Bunny Copter