By: Emma Milburn & Samantha McMahon
Hydraulics
Hydraulics
 Hydraulics is the liquid version of pneumatics. In fluid
power, hydraulics is used for the generation, control &
transmission of power by the use of pressurized
liquids. This covers concepts such as pipe flow, dam
design, fluidics, and fluid control circuitry, pumps,
turbines, hydropower, computational fluid dynamics,
flow measurement, river channel behavior, and
erosion.
What are 4 hydraulic devices?
 Backhoes
 Bulldozers
 Car Crushers
 Jaws of Life
How do hydraulic systems work?
 The hydraulic system is quite simple. Force that is
applied to one point is transmitted to another point
using an incompressible fluid. The force is almost
always multiplied in the process. The brakes in your
car are a good example of a piston-driven hydraulic
system.
Pneumatics
Pneumatics
 Pneumatics is the use of pressurized gases to produce
mechanical motions. Pneumatic systems are used in
industry & factories extensively.
What are 4 pneumatic devices?
 Air Compressors
 Paint Spray Equipment
 Sanders
 Buffers
How do pneumatic systems work?
 Pneumatic systems are similar to hydraulic systems,
with the same idea. But hydraulic systems use
incompressible fluid, while pneumatic systems use
compressible air. Filtered air is pulled through system
by a vacuum pump. Evacuated air passes through the
instrument case which causes gyro to spin. Spinning
gyros provide 'rigidity in space' for instrument
references. Air exhausts through the Gyro pressure
gauge exhaust port.
What are the major differences
between hydraulics and
pneumatics?
 Hydraulic systems use incompressible fluid, while
pneumatic systems use compressible air.
Particle
Theory
U.M.A.S.H
 U – Unique
 M – Movement
 A – Attraction
 S – Small
 H - Heat
Unique
 All particles are unique.
Movement
 All particles move. The faster the particles move, the
more heat they produce. The slower the particles
move, the more cold they produce.
Attraction
 All particles attract each other, some more than others.
Small
 All particles are small.
Heat
 When particles move together fast they make heat.
Particle Theory
 All matter is made up of invisible, tiny particles.
 Particles have spaces in between them.
 Particles are moving all the time.
 Particles move faster when they are heated.
 Particles attract each other
Bibliography
 http://www.instruction.greenriver.edu/aviation/downl
oads/AVIA112_files/Pneumatics.pdf
 http://answers.yahoo.com/question/index?qid=20070
428043812AACPWaG
 http://en.wikipedia.org/wiki/Hydraulics