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					1.   Explain that requirements of a design, such as criteria,
     constraints, and efficiency, sometimes compete with each
     other. (ITEA, STL 8-K)
2.   Identify criteria and constraints and determine how these will
     affect the design process. (ITEA, STL 11-N)
3.   Develop and produce a product or system using a design
     process. (ITEA, STL 11-Q)
4.   Select and use appropriate tools based on the properties of
     materials.
5.   Explain why technological problems must be researched
     before they can be solved.
6.   Describe the core technologies (mechanical, structural,
     electrical, electronic, thermal, fluid, optical, bio, and material)
     as they are applied in the designed world.
7.   Analyze the functioning of the core technologies in the
     designed world In terms of common components, basic
     system design, safety, simple controls and system
     performance evaluation
• Engineering, the systematic
  application of mathematical, scientific,
  and technical principles, produces
  tangible end products that meet our
  needs and desires.
• To familiarize students with the
  engineering resources (core
  technologies), the building blocks of
  the designed world.
• Identify and describe the core
  technologies (mechanical, structural,
  electrical, electronic, thermal, fluid,
  optical, bio, and material) as they are
  applied in the designed world.
  A technology system is a group of resources
                                Core Technologies:
(subsystems) working together to solve problems
                                Mechanical
        and extend human capabilities.
                               Structural
                               Electrical
                               Electronic
                               Thermal
                               Fluid
                               Optical
                               Bio-Tech
                               Material
• Analyze a technology system, focus
  on its function and application.
• Identify the problem that the
  technology system solves.
• List the resources (core technologies)
  you recognize in the technology
  system.
• Analyze this technology system, focus on its
  function and application.
• What problem does this technology system
  solve?
• List the core technologies you recognize in
  the technology system.
• Analyze this technology system, focus on
  its function and application.
• Identify the problem that this technology
  system solves?
• List the core technologies you recognize
  in the technology system.
• Analyze this technology system, focus on
  its function and application.
• Identify the problem that this technology
  system solves.
• List the core technologies you recognize
  in the technology system.
• There are several    Core         Mechanical
  engineering          Technologies
  resources (core      Structural   Electrical
  technologies) that
  are the “building    Electronic   Thermal
  blocks” of all
  technology           Fluid        Optical
  systems.
                       Bio-Tech     Material
  Mechanical Technology –
• The technology of putting together
  mechanical parts to produce, control, and
  transmit motion.

        •Example applications: gear
        systems in a car transmission,
        brakes on a bicycle, agitator in a
        washing machine, latch on a
        door.
  Structural Technology –
• The technology of putting mechanical parts
  and materials together to create supports,
  containers, shelters, connectors, and
  functional shapes.

 •Example applications: legs on a chair, city
 water tower, swimming pool, roadways,
 bridges, storm sewer, airplane wing,
 satellite antenna disc.
  Electrical Technology –
• The technology of producing, storing,
  controlling, transmitting and getting work
  from electrical energy.


   •Example applications: power plant generator,
   flashlight, electric motor in a can opener,
   doorbell, electric heater, hair dryer.
  Electronic Technology –
• The technology of using small amounts of electricity
  for controlling; detecting; and information collecting,
  storing, retrieving, processing and communicating.


    •Example applications: thermostat for
    controlling temperature, a metal detector, video
    tape recorder, computer, pocket calculator,
    telephone, radio, television.
  Fluid Technology –
• The technology of using fluid, either gaseous
  (pneumatics) or liquid (hydraulic) to apply force
  or to transport.



    •Example applications: air brakes on a
    truck, tires on a car, airfoils on an airplane,
    warm-air heating ducts, hydraulic jack,
    plumbing in a school.
  Optical Technology –
• The technology of producing light; using light for
  information collecting, storing, retrieving,
  processing and communicating; and using light to
  do work.


    •Example applications: lightbulb, light-
    emitting diode, lenses to magnify or
    reduce, laser speed detector, laser
    compact disk, fiber-optic telephone
    communication, laser cutting tools, laser
    surgical instruments.
  Thermal Technology –
• The technology of producing, storing, controlling,
  transmitting and getting work from heat energy.



    •Example applications: furnace, hot
    water heater, toaster, insulation, heat
    exchanger, refrigerator, jet engine, hot
    air balloon.
  Biotechnology –
• The technology of using, adapting, and altering
  organisms and biological processes for a desired
  outcome.

   •Example applications: “stain-
   eating” enzymes in detergent,
   bacteria “leaching” metals from
   ore, altering plant genes to
   produce better crops.
  Materials Technology –
• The technology of producing, altering, and
  combining materials.



     Example applications: producing
     paper from wood, producing
     aluminum from ore, drilling holes in
     wood, annealing to soften metal,
     laminating wood.
Elements of the engineering-design process can be
used in short term problem-solving activities:


a) learn and practice
systematic problem solving,
b) develop and apply their
creativity and ingenuity
c) make concrete applications
of mathematics and science
skills and concepts.
Challenge Problem
Design and construct a crane that will lift the greatest weight.

Rules
1. The crane boom must attach to the tower provided.
2. A one-half inch (½”) hole will be used to mount the boom to
   the tower.
3. You may not touch the tower or the boom during testing.
4. Counterweights are allowed, but they may not be adjusted
   during testing.
5. The boom must hold a weight fourteen inches (14”) from the
   tower center.
6. The maximum length of the boom is twenty inches (20”).
7. A mechanism must be provided for lifting the weight.
                 Crane Strain

 Problem Statement:

     Design and construct a crane that
     will lift the greatest weight.

 Constraints and Desired Results:
1.   The crane boom must attach to the tower
     provided.
2.   A one-half inch (½”) hole will be used to mount
     the boom to the tower.
3.   You may not touch the tower or the boom during
     testing.
4.   Counterweights are allowed, but they may not be
     adjusted during testing.
5.   The boom must hold a weight fourteen inches
     (14”) from the tower center.
6.   The maximum length of the boom is twenty
     inches (20”).
7.   A mechanism must be provided for lifting the
     weight.
Research Using MDSolids




        When the program opens
           – select Trusses
MDSolids
Select New Truss




                   Increase the
                    number of
                     spaces-
                    Select OK
MDSolids




   Create the
   members
MDSolids



      Add Supports –
     One needs to be a
        fixed point
           MDSolids




Add a Load-watch
  the direction
 MDSolids




 Press
Compute
     Research Ideas:




Explore Possibilities:

 1
 2


 3




Selecting an Approach:

     Number ___ is the best because…
  Design Proposal:

Step 1 is to ……..
Step 2 is to ……..
Step 3 is to ………

  Attach full size drawing

Testing and Evaluating:

The results of testing were………


Refining the Design:

If I were to do this again, I would improve
the following………
1. Follow all directions the first time they are
   given.
2. Be courteous in language and actions.
3. Be on time and prepared to participate.
4. Respect other people and their property.
5. Eye protection must be worn while
   students are processing materials.
6. Running and playing is not allowed in the
    Technology Lab.
7. Throwing any object in the Technology Lab
    is not allowed.
8. Students will only be able to use tools and
    machines while the Technology Teacher is
    in the Lab.
9. Students should wear clothing that protects
    their arms, legs, and feet from injury.
10. Keep the floor and working surfaces clean
    and dry at all times.
11. Hair that presents a safety hazard
    must be tied back.
12. Respect all tools and machines.
13. When in doubt, ask your Teacher.
14. Report any incident to the
    Teacher.

•   Avoid the 250 word essay – follow
    the safety rules.

				
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