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APPLICATION OF PASCAL'S PRINCIPLE IN THE AUTO BRAKING SYSTEM

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haziq ilham

on 16 December 2014

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Transcript of APPLICATION OF PASCAL'S PRINCIPLE IN THE AUTO BRAKING SYSTEM

WHAT IS PASCAL'S PRINCIPLE?
Pascal’s principle, is also known as  Pascal’s law
it states when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container.


Pascal’s Principle in Mathematic Expression

There are several application of Pascal’s principle in Automotive which are:
Hydraulic Lift,
Hydraulic Jack
Hydraulic Brake.

Pascal’s Principle in the Auto braking system, Hydraulic Brake.
hydraulic brake function by a small force acting at the pedal can transmit a large. Force to all wheels simultaneously to stop the car.
When brake pedal in pressed, the force is transmitted to the brake shoes through a liquid (link).
Pascal’s Principle in the Auto braking system, Hydraulic Brake.
APPLICATION OF PASCAL'S PRINCIPLE IN THE AUTO BRAKING SYSTEM:HYDRAULIC BRAKE
MOHD FAIZ BIN NAZARI
ZULFAHMI BIN OMAR
MUHAMMAD HAZIQ ILHAM BIN ROSLAN
The formulas that relate to this are shown below:
P1 = P2 (since the pressures are equal throughout).
Since pressure equals force per unit area, then it follows that
F1/A1 = F2/A
Brake systems use hydraulic fluid in a closed system to transmit motion. The hydraulic brake system is governed by physical laws that makes it efficient at transmitting both motion and force. Blaise Pascal discovered the scientific laws governing the behavior of liquids under pressure.

Calculation for Pascal's Principle in the Hydraulic Brake
The Conservation of Energy
Kinetic Energy = 1/2 ×mv ×vv 2
The Brake Pads
F friction = F clamp ×μbp
BRAKE FLUID
Requirements of a fluid used in automotive brake applications must include the following:
remain viscous.
have a high boiling point.
act as lubricant for moving parts

types:
polyglycol
silicon

Another important distinction to make is that liquids cannot be compressed, whereas, air is compressible. A hydraulic system must be free of air in order to function properly. Pedal travel will increase as air in the system is compressed.
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