Power Of Hydraulic Dec, 2013 - Linnaeus University Javad Mohammadi Majd Javad Mohammadi Majd

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Presentation transcript:

Power Of Hydraulic Dec, Linnaeus University Javad Mohammadi Majd Javad Mohammadi Majd

ANSWER: A hydraulic system is a means of using a pressurised fluid to transmit power between the place where the power is generated and the point where it is used. ANSWER: A hydraulic system is a means of using a pressurised fluid to transmit power between the place where the power is generated and the point where it is used. QUESTION: What is a hydraulic system ? QUESTION: What is a hydraulic system ?

REQUIREMENT FOR POWER

GAS TURBINE INTERNAL COMBUSTION ENGINE INTERNAL COMBUSTION ENGINE ELECTRIC MOTOR SOURCES OF POWER

? ? SOURCE OF POWER SOURCE OF POWER CONNECTING THE SOURCE OF POWER

DIRECT DRIVE

MECHANICAL POWER TRANSMISSION

HYDRAULIC POWER TRANSMISSION

STOP START SPEED DIRECTION POSITION ACCELERATION CONTROL HYDRAULIC POWER TRANSMISSION

HYDRAULIC LIFT

time Distance HYDRAULIC LIFT

time Acceleration Distance HYDRAULIC LIFT

time Acceleration Velocity Distance HYDRAULIC LIFT

time Acceleration Deceleration Velocity Distance HYDRAULIC LIFT

time Position Acceleration Deceleration Velocity Distance HYDRAULIC LIFT

NON-HYDRAULIC EXCAVATOR

HYDRAULIC EXCAVATOR

HYDRAULIC OPERATION

HYDRAULIC PRINCIPLES

TRANSMITTING MOVEMENT

PUMP ACTUATOR CREATING PRESSURE

PUMP ACTUATOR CREATING PRESSURE

W PUMP ACTUATOR CREATING PRESSURE

W P PUMP ACTUATOR CREATING PRESSURE

AREA PRESSURE FORCE PRESSURE = FORCE ÷ AREA FORCE = PRESSURE x AREA PRESSURE DEFINED

HIGH PRESSURE HIGH PRESSURE 1 kg LOW PRESSURE LOW PRESSURE 1 kg HIGH PRESSURE HIGH PRESSURE 1 kg PRESSURE DEFINED

P F A PUMP ACTUATOR 1000 kg 10 cm 2 LIFTING A LOAD P = F A F A F A F A = = 100 kg/cm 2 P = F A

100 kg/cm 2 PUMP ACTUATOR 10 cm 2 ? ? 1000 kg LIFTING A LOAD

PUMP ACTUATOR 10 cm kg 100 kg/cm 2 LIFTING A LOAD

A PUMP ACTUATOR 1000 kg 100 cm 2 P = F F A A 10 cm 2 10 kg/cm 2 LIFTING A LOAD P = F F A A = = = 10 kg/cm 2

A F = P x A = 10 x 10 = 100 kg PUMP ACTUATOR 1000 kg 100 cm 2 10 cm 2 10 kg/cm kg FORCE MULTIPLICATION

A PUMP ACTUATOR 1000 kg 100 cm 2 10 cm 2 10 kg/cm kg FORCE MULTIPLICATION = P = F F A A F F A A

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

PUMP ACTUATOR HYDRAULIC MACHINE

( 1 N = 0.1 kg approx) 1 metre 1 metre 2 1 newton per square metre = 1 pascal (Pa) 1 kilo pascal = Pa 1 mega pascal = Pa 1 bar = Pa 1 bar = 1 kg / cm 2 (approx) 1 newton per square metre = 1 pascal (Pa) 1 kilo pascal = Pa 1 mega pascal = Pa 1 bar = Pa 1 bar = 1 kg / cm 2 (approx) 1 newton UNITS OF PRESSURE

PRESSURE (Pa) = FORCE (N) AREA (m 2 ) PRESSURE (bar) = FORCE (N) x 10 AREA (mm 2 ) PRESSURE (bar) = FORCE (N) AREA (cm 2 ) x 10 PRESSURE CALCULATION

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