This document presents an electromagnetic braking system as an alternative to conventional friction-based braking systems. It describes how electromagnetic brakes work by creating a magnetic field within a rotating metal disc that induces eddy currents, generating a torque that opposes the disc's rotation. The key advantages are that electromagnetic brakes do not involve friction or wear, require low maintenance, are quieter and simpler than friction brakes. Potential applications include railway systems, vehicles, aircraft and industrial equipment. The conclusion is that electromagnetic braking is superior to friction braking due to the lack of heat and friction.

1. ELECTROMAGNETIC
BRAKING SYSTEM
SUBMITTED BY
Avinash Patel(K10504)
Sunil Kumar (K11255)
Ravi Prakash (K10567 )
Vikash kumar (K11092)
B.TECH(M.E)-Final Year
GUIDED BY
Mr. Bhupendra Gahlot
(Assistant prof. M.E Dept.)
Career point university
Kota (Rajasthan)

2. BRAKE
• 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.

3. Disc Brakes

4. Need for Alternative
• 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

5. INTRODUCTION
 A brake is a mechanical device which retards
motion.
 Electromagnetic brakes operate electrically, but
transmit torque mechanically.
 This is why they used to be referred to as
electro-mechanical brakes.
Electromagnetic brakes are used as supplementary
retardation equipment in addition to the regular Friction
brakes.

6. Working Principle
The working principle of the electro
magnetic brake is based on the
creation of magnetic field with in a
metal disc rotating between two
electro magnets, which sets up a
force opposing the rotation of the
disc.

7. Electromagnetic Braking
• 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. Stator And Rotor

11. Typical Electromagnetic
Brake

12. ADVANTAGES
Electromagnetic brakes can develop a negative power which represents
nearly twice the maximum power output of a typical engine.
Electromagnetic brakes work in a relatively cool condition and satisfy
all the energy requirements of braking at high speeds, completely
without the use of friction.

13. ADVANTAGES
• No friction
• Low maintenance requirement
• Less noise
• Simple in design
• High degree of safety

14. DISADVANTAGES
• Failure to act as a holding device
• Usage of electric power for braking
• Less effective under very low velocities

15. APPLICATIONS
 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
 Used in crane control system.
 Used in winch controlling.
 Used in lift controlling.
 Used in automatic purpose.

16. CONCLUSION
• 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.