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SEMINAR REPORT ON
ELECTROMAGNETIC BRAKE
Deepak Kumar+91-8950783197
Electromagnetic Braking
What Is brake? Need for alternative What is electromagnetic brake Advantages Disadvantages Applications conclusion
CONTENTS
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
Brake
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
Need for Alternative
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)
Electromagnetic Braking
No friction Low maintenance requirement Less noise Simple in design High degree of safety
Advantages
Failure to act as a holding device Usage of electric power for braking
Less effective under very low velocities
Disadvantages
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
Applications
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.
Conclusion