Hydraulic Fundamentals Part A (190105aA)
Objective #2
Using mathematical calculations, explain the
hydraulic principles of pressure, force, area, volume, flow rate, cycle times
and power.
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Know/Don’t know
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Notes
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Hydraulic principles
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Characteristics of fluids
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Pascal's Law
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Relationship of pressure, area and
force
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· Metric (SI) units for
force area and pressure
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· mass
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· force
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· area
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· pressure
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Hydraulic force generation
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Force multiplication using hydraulic
principles
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Reaction of pressure in series and
parallel circuits
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· Series hydraulic
circuits
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· Parallel hydraulic
circuits
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Measuring pressure
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· Head pressure
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· Atmospheric pressure
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· Pressure gauges
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· Scales of pressure
measurement
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· gauge pressure
measurement
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· absolute pressure
measurement
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· imperial units of
pressure
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· inches of mercury
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· Metric units of pressure
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· (bars, atmospheres)
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Relationship of flow rate, actuator
volume and actuator speed
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· Liquid flow
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· Measurement of liquid
movement
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· flow rate
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· velocity
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· Cycle time
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· Actuator speed
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Hydraulic power
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· Output power
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· imperial units
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· metric units
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· Input power
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