06-10-2017, 04:55 PM
Please give synopsis on em braking system
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synopsis on electromagnetic brake
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Please give synopsis on em braking system
19-10-2017, 09:06 AM
Electromagnetic brakes (also called electromechanical brakes or EM brakes) slow or stop the movement using the electromagnetic force to apply mechanical resistance (friction). The original name was "electromechanical brakes" but over the years the name changed to "electromagnetic brakes", in reference to its method of actuation. Since it became popular in the mid-20th century, especially on trains and trams, the variety of applications and brake designs has increased dramatically, but the basic operation remains the same.
Both electromagnetic brakes and eddy current use electromagnetic force, but electromagnetic brakes are ultimately dependent on friction and the Foucault brakes use magnetic force directly. In locomotives, a mechanical link transmits the torque to an electromagnetic braking component. Trams and trains use electromagnetic rail brakes where the braking element is pressed by magnetic force to the rail. They are distinguished from the brakes of mechanical tracks, where the braking element is mechanically pressed into the rail.
Electric motors in industrial and robotic applications also employ electromagnetic brakes. Recent design innovations have led to the application of electromagnetic brakes to aircraft applications. In this application, a combination engine / generator is first used as a motor to rotate the tires to the speed before landing, thus reducing tire wear and then as a generator to provide regenerative braking.
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