Slide 1 - Mass TEC by panniuniu

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									                                         6. Transportation Technologies
Broad Concept: Transportation technologies are systems and devices that move goods and people from one place to
                               another across or through land, air, water, or space.
6.1 Identify and compare examples of transportation systems and devices that operate on each of the following: land,
                                               air, water and space.




                                                                                                                   1
6.3 Identify and describe three
subsystems of a transportation
     vehicle or device, i.e.,
     structural, propulsion,
guidance, control, suspension,
          and support.

                                  2
           Term 1Structural



Structural- is a framework or the
physical frame (skeleton) and or
      a covering (shell or
exoskeleton) of a transportation
              device

                Structural      3
Structural Lexus Car Assembly
             Video




            Structural          4
Structural




             5
   NASCAR Race Car

http://auto.howstuffworks.com/nas
              car.htm



                                    6
                     Boat Structural Member




  6.3 Identify and describe three subsystems of a transportation
vehicle or device, i.e., structural, propulsion, guidance, suspension,
                          control, and support.                          7
             Term 2

   Control- the system that
   maintains and or makes
changes in speed and direction
    of a vehicle possible


              Control            8
                       Control Video




6.3 Identify and describe three subsystems of a transportation vehicle or device, i.e.,
       structural, propulsion, guidance, suspension, control, and support.
                                       Control                                            9
           Term 3

Propulsion- uses energy to
produce power for motion



           Propulsion        10
http://auto.howstuffworks.com/engine1.
                  htm

http://www.keveney.com/Engines.html

http://www.gm.com/experience/educati
        on/5-8/games/ice/ice.jsp



                Propulsion           11
     NASCAR Online Video

     Science of Speed Power

http://www.nsf.gov/news/special_re
        ports/sos/power.jsp


               Propulsion        12
     NASCAR Engine 850 HP

        Car Engine 150 hp
(A car engine is about ½ to 1/3 the
physical size of a NASCAR engine)

Person .4Hp or 4/10th HP or 2/5ths
               HP
               Propulsion         13
             Term 4

Guidance- the system receiving
information needed to operate
          the vehicle



             Guidance        14
             Term 5

Suspension- a vehicular system
 that produces proper support
  for the weight of the vehicle
           and cargo


                              15
16
              Term 6


 Support systems – provide life,
legal, operational, maintenance,
 and economic support for safe
     and efficient operation
    (pathways, maintenance
 cost in money to purchase and
            maintain)
              Support          17
Draw one of the transportation
    devices and note the
subsystems on the assignment
           sheet
  (Answer question 1 and 2)


                             18
            Question 3
   What is a common name for
     each of the subsystems,
structural, propulsion, guidance,
    suspension, and control.
 (Example- what is the name of
  the propulsion system?) Note
   the name in the box below.
                                19
   Identify support systems on your definition sheet


                   Pathways

            Training/Licenses

   Cost (in money) to purchase

Cost (in money) to maintain and timeframe

      Other support resources                          20
6.4 Identify and explain lift,
 drag, friction, thrust, and
   gravity in a vehicle or
 device, e.g., cars, boats,
     airplanes, rockets.
  Central Concept: Transportation technologies are systems and devices
 that move goods and people from one place to another across or through
                       land, air, water, or space.

                                                                          21
                                     Term 7 Thrust


         Thrust- To push or
          drive quickly and
               forcibly
                                             Notes
Thrust is noted on a drawing of a transportation device in the direction of travel or in
                        relation to the propulsion sub system
6.4 Identify and explain lift, drag, friction, thrust, and gravity in a vehicle or device, e.g.,
                               cars, boats, airplanes, rockets.




                                                                                              22
Thrust Video




               23
What subsystem is responsible
for converting/creating thrust?
  Note it on your term paper



                              24
Note on your drawing the
 direction the propulsion
subsystem is thrusting the
          vehicle


                             25
                                             Term 8


     Friction- the force that brings
     moving objects to rest, friction
     occurs when objects come in
        contact with each other
                                           Notes
                         Friction occurs when objects touch other
                    The more surface area and pressure the more friction
                         Friction stops objects from sliding around

6.4 Identify and explain lift, drag, friction, thrust, and gravity in a vehicle or device, e.g., cars,
                                     boats, airplanes, rockets.


                                               Friction                                          26
Friction Video




     Friction    27
Friction Video 2




      Friction     28
Friction Video 3




      Friction     29
The Science of Speed: Friction &
     Heat (NASCAR video)

http://www.nsf.gov/news/special
   _reports/sos/frictionheat.jsp


               Friction        30
What subsystem utilizes
       friction?



                          31
 Note on your drawing where
friction occurs on your vehicle




                                  32
 If friction increased what other
force would need to increase to
 maintain the speed / velocity?



                                33
                                          Term 9

   Drag- the resistance of an
object to the flow of a fluid, such
          as air or water
                                       Notes
                          Drag is a form of fluid Friction
 Drag is noted on drawings of transportation devices where the fluid (air or water) is
              pushed away or cut through by the transportation device

6.4 Identify and explain lift, drag, friction, thrust, and gravity in a vehicle or device, e.g.,
                               cars, boats, airplanes, rockets.




                                                                                              34
Golf ball drag or lack there of




                                  35
Low drag vehicle




                   36
The Science of Speed: Drag &
  Drafting (NASCAR Video)

http://www.nsf.gov/news/special
       _reports/sos/drag.jsp


                               37
Write drag on your drawing and
 make a arrow showing how
  drag applies force to your
            device


                             38
   Can any subsystems be
changed or modified to increase
       or reduce drag?



                              39
  If drag increases what other
force would need to increase to
   maintain speed / velocity?



                              40
                                           Term 10

   Gravity is a force that pulls
  objects towards the center of
            the earth.
                                           Notes
Gravity is noted on a drawing of a transportation device in relation to the center of the earth

6.4 Identify and explain lift, drag, friction, thrust, and gravity in a vehicle or device, e.g., cars,
                                     boats, airplanes, rockets.




                                                                                                 41
Note on your drawing gravity
  and make a arrow in the
 direction gravity is applying
     force to your device


                                 42
   Can any subsystems be
changed to increase or reduce
     gravity? Yes No



                                43
If there is more gravitational or
   less gravitational force how
         would it impact?


        Structural

                                    44
If there is more gravitational or
   less gravitational force how
         would it impact?

        Thrust
   Control, to activate
      Propulsion
                                    45
If there is more gravitational or
   less gravitational force how
         would it impact?


    Control Friction
                                    46
If there is more gravitational or
   less gravitational force how
         would it impact?



      Suspension
                                    47
If there is more gravitational or
   less gravitational force how
         would it impact?


         Support

                                    48
If there is more gravitational or
   less gravitational force how
         would it impact?



            Drag
                                    49
                                         Term 11

  Lift is an upward force
used to over come gravity

                                            Notes
Lift is noted on the drawing of a transportation device in an upward direction if there are
                     lifting forces causing the device to be pushed up

6.4 Identify and explain lift, drag, friction, thrust, and gravity in a vehicle or device, e.g.,
                              cars, boats, airplanes, rockets.




                                                                                             50
Airplane lift video




                      51
http://www.pbs.org/wgbh/nova/
       wright/airborne.html

            Works 3-11-2010




                              52
      Lift Drag Thrust Gravity in a
                Airplane




6.4 Identify and explain lift, drag, friction, thrust, and gravity in a vehicle or
                device, e.g., cars, boats, airplanes, rockets.

                                                                                     53
 Note on the drawing lift with a
arrow if the device is impacted
by lift forces, if there are not any
significant lift forces write no lift


                                    54
  If thrust was increased or
decreased how would it impact
              lift



                            55
  If friction was increased or
decreased how would it impact
                lift



                             56
   If drag was increased or
decreased how would it impact
              lift



                            57
  If gravity was increased or
decreased how would it impact
               lift



                            58
Compare and Contrast.




                        59
View slide show of shuttle
    prep/on desktop



                             60
Slides not using 2006-2007




                             61
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64
 Pictures of airplanes and parts for
                control
http://wings.avkids.com/Book/Vehic
           les/gallery.html



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