1 / 21

Fluid Technology

Fluid Technology. Fluid Technology. The technology of using fluid, either gaseous (pneumatics) or liquid (hydraulic), to apply force or to transport. Example of a simple form of a fluid technology system: Bicycle pump. All fluid systems have two things in common.

kezia
Télécharger la présentation

Fluid Technology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fluid Technology

  2. Fluid Technology • The technology of using fluid, either gaseous (pneumatics) or liquid (hydraulic), to apply force or to transport. • Example of a simple form of a fluid technology system: • Bicycle pump.

  3. All fluid systems have two things in common. • Each system contains a fluid, either liquid or gas, that moves through a system. • A pressure difference in the system creates force, which causes fluids to move or perform some special function like pushing a piston or opening or closing a valve.

  4. States of matter • Solids- Atoms tightly bound together , • have a definite shape and volume. • Liquids- atoms touch but have the ability to move • has volume but no defined shape • Gas- very low density • have no defined volume or shape

  5. Pneumatic Drive Systems • Advantage • Uses inexpensive compressed air to operate • Good for clamping work pieces

  6. Pneumatic Drive Systems • Disadvantage • Speed and position not easily controlled

  7. Hydraulic Drive Systems Advantage • Compact • Allows for high levels of force and power, combined with accurate control • Converts forces from a liquid into rotational or linear forces

  8. Hydraulic Drive Systems • Disadvantage • Messy. Fluid may contaminate parts, mess up other handling machines, and may not take a finish. • Not environmentally friendly – fluid can be toxic. • May require costly clean up and disposal.

  9. Aerodynamics • The study of the flow of fluid around solid objects of various shapes

  10. 4 basic principles of AerodynamicsA. LiftB. ThrustC. WeightD. Drag

  11. Newton’s Second Law F = ma F = force m = mass a = acceleration For a fast car, you need: -Big force -Light car Speed = Distance / Time

  12. Newton’s Third Law "For every action, there is an equal and opposite reaction.” Drag Thrust

  13. CO2 Car Project Write the following in your journal

  14. Problem • You need to design the fastest car possible

  15. Material • One block of wood • Two eye hooks • Wheels & Axels

  16. Constraints • 1.) Car must have a CO2 chamber that is 1.5” deep and set ½” below top of block • 2.) Car cannot be shorter in length than 5” • 3.) Axles cannot be more than ¼” high • 4.) Car must employ aerodynamic principles

  17. Hint #1 • The #1 most important factor in the speed of you dragster car is… • Mass • Cars with less mass go much faster!

  18. Hint #2 • Thanks to our friend gravity, everything has friction. • Since we can’t eliminate friction, how can we reduce it?

  19. Reducing Friction • Make sure the axle & tires are free to rotate. • Make sure the wheels are not rubbing on the car body. • Be sure to install your eye-hooks properly. • Poorly aligned eye-hooks are often the cause of a slow car.

  20. Grading • Your car will be graded on the following rubric • Meets constraints _____ / 10 • Evidence of planning _____ / 10 • Time Trials _____ / 10 • Alignment _____ / 10 • Reflection questions _____ / 10

More Related