Hydraulics
- Created by: Jasmin
- Created on: 29-04-13 21:09
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- Hydraulics
- Liquids are virtually incompressible
- Volume does not change when under pressure
- Pressure in liquids are transmitted equally in all directions
- Pressure is force per unit area
- Pressure (N/m2) = Force (N) / Area (m2)
- Hydraulic systems
- Force multipliers
- Use small force to produce bigger force
- Larger area, larger force = force = pressure x area
- Force applied to system - effort
- Force exerted by system - load
- Example: Hydraulic car jacks
- Used to lift a car
- Handle pressed down, oil forced out of narrow cyclinder into wider cylinder
- Pressure of oil forces piston in wider cylinder outwards
- Piston forces pivoted lever to raise car
- Pressure of oil forces piston in wider cylinder outwards
- Handle pressed down, oil forced out of narrow cyclinder into wider cylinder
- Used to lift a car
- Force multipliers
- Liquids are virtually incompressible
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