There are various definition by various parties by various time and by various place (uh-oh..how much various duh?!)
- moved or operated or effected by liquid (water or oil); "hydraulic erosion"; "hydraulic brakes"
- of or relating to the study of hydraulics; "hydraulic engineer" (by:wordnetweb.princeton.edu/perl/webwn)
- Hydraulics is a topic in applied science and engineering dealing with the mechanical properties of liquids. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the engineering uses of fluid properties. ...(by:en.wikipedia.org/wiki/Hydraulic)
- Pertaining to water; Related to hydraulics (by: en.wiktionary.org/wiki/hydraulic)
- hydraulics - fluid mechanics: study of the mechanics of fluids (by:wordnetweb.princeton.edu/perl/webwn)
Ok..that is some definition can be found if you asked Uncle Google
Ok..as simple conclusion:
Hydraulic is the forces and motion generation, using the hydraulic fluids which the fluid act as a representative for the medium of power transmission
Hydraulic will 100% related with fluid ( the fluid terms here including water and oil, except air, because air is belong to pneumatic system)
Application of hydraulics:
Well..beyond the Industrial Era, which more factory has been developed rapidly through the years, the hydraulic system are also has been developed years by years..to improve it efficiency and reliability...
Since we are in modern era (an era where you can just Around The World in 80 Hours)...basic distinction of modern automation hydraulic technology is made between:
- stationary hydraulic
- mobile hydraulic
Mobile hydraulic systems move on wheels or tracks, for example, unlike stationary stationary hydraulic systems which remain firmly fixed in one position. A characteristic feature of mobile hydraulics is that the valves are frequently manually operated. In the case of stationary hydraulics however mainly solenoid valves is used......
"Sir..I,m puzzle...what is the mean of manually operated and those solenoid valve and bla bla..."
"Simple son, mobile hydraulic...errr..look out through the window....near that clothing warehouse..no!..don't look at those hot chick model..look at the moving forklift...can you see how its working?..it can lift up those goods by using its pair "fork" rite?..."
"Andd????.."
"The mechanism to lift there is using hydraulic system..consist of one cylinder..to control the movement of the cylinder..look at the driver's hand while he is lifting the goods..can you see he's triggering forward and backward a few knob?"
"Uh oh..yes..yes..I can see it Sir!"
"Well..that is what valves are frequently manually operated mean...the trigger somehow is connected to directional valve which control the movement and direction of the hydraulic cylinder...and why it's called as mobile hydraulic?"
"Because its mounted to the moving object...fuhh..now only I can see all those stars gone above my head!"
(story of the day 1)
The following application areas are important for stationary hydraulics:
- Production and assembly machines of all types
- Transfer lines
- Lifting and conveying devices
- Presses
- Injection moulding machines
- Rolling Lines
- Lifts
Typical application fields for mobile hydraulics:
- Construction machinery
- Tippers, excavators, elevating platform
- Lifting and conveying devices
- Agricultural machinery
- Transportation
Some best-value-added using hydraulic systems are:
- Transmission of large forces using small components
- Precise positioning
- Start-up under heavy load
- Even movements independent of load
- Smooth operational and reversal
- Good control and regulation
- Favorable heat dissipation
- Standardize around the world
- Pollution of the environment by waste oil
- Dirt sensitive
- Danger resulting from excessive pressures
- Temperature dependence
- Unfavorable efficiency factor
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