3. What Is brake?
Needfor alternative
What is electromagnetic brake
Advatages
Disadvantages
Applications
conclusion
4. A brake is a mechanical device which retards
motion.
Brakes use friction between two surfaces to
convert the kinetic energy of the moving
object into heat.
Types of Frictional brakes-Disc, Drum
5.
6. All conventional systems of braking in road
vehicles uses development of contact friction
for retardation
These systems are prone to the wear and tear
on usage
Conventional braking systems produces
continuous power dissipation as heat and
may fail if the temperature rises too high
Friction based braking methods are also not
efficient under wet conditions
7. Disc is rotated in magnetic field
eddy currents will be produced in disc
eddy currents induced in disc will produce a
torque (motor principle)
produced torque in disc opposes actual
rotation of disc (Lenz law)
8.
9. No friction
Low maintenance requirement
Less noise
Simple in design
High degree of safety
10. Failure to act as a holding device
Usage of electric power for
braking
Less effective under very low
velocities
11. Already in use under some railway system
Can be used for any road vehicles
Equally applicable to heavy and light vehicles
Can be used as additional retarder for
aircrafts
12. Electromagnetic Braking is superior to
conventional frictional braking as there is no
friction and heat in electromagnetic braking.
So the conventional disc and drum brakes can
be replaced with electromagnetic brakes.
