Understanding Hydraulic Systems: Fluid Power Principles and Applications

Hydraulic Systems:
Using Fluid Power
to Make Work
Easier
Hydraulic Systems: Using Fluid Power to
Make Work Easier

LEARNING OBJECTIVES
At the end of the lesson, students should be able to:
• Define a hydraulic system.
• Identify the components of a simple hydraulic system.
• Explain Pascal's Principle.
• Describe how pressure is transmitted in fluids.
• Explain how hydraulic systems enhance simple and compound
machines.
• Identify real-life applications of hydraulic systems.
• Solve simple hydraulic force problems.
• Appreciate the importance of hydraulics in modern technology.

How Can These Things Lift another Thing?

Review:
What Are
Simple
Machines?

Review:
What Are
Compound
Machines?

What are Hydraulic
Systems?
A hydraulic system is a system that
uses an incompressible liquid to
transmit force from one point to
another.

Pascal’s
Principles discovered
that
Pressure
applied to a
confined fluid
is transmitted
equally in all
Blaise Pascal

Hydraulic
Formula
• Formula:
Where:
• F₁ = Input force
• A₁ = Small piston area
• F₂ = Output force
• A₂ = Large piston area

PROBLEM SOLVING
• A hydraulic jack has a small piston with an area of 5 cm². A
force of 60 N is applied to the small piston. The large piston
has an area of 40 cm². Find the output force.
Given

PROBLEM SOLVING
• A hydraulic press produces an output force of 900 N. The
large piston area is 30 cm², while the small piston area is 6
cm². Find the input force.
Given

PROBLEM SOLVING
• A hydraulic lift uses an input force of 100 N applied to a 4
cm² piston. The output force is 800 N. Find the area of the
large piston.
Given

PROBLEM SOLVING
• A hydraulic machine produces an output force of 1,200 N
using an input force of 150 N. The large piston has an area
of 24 cm². Find the area of the small piston.
Given

PROBLEM SOLVING
• A mechanic applies a force of 250 N to a small piston with
an area of 10 cm². The large piston has an area of 100 cm².
How much output force can the hydraulic lift produce?
Given

Understanding Hydraulic Systems: Fluid Power Principles and Applications