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Safety Brake using Eddy Current

Author(s):

Hemant Patel , Theem College of Engineering; AMIT NAITHANI, Theem College of Engineering; Saurabh Yadav, Theem College of Engineering; Sujit Gupta, Theem College of Engineering

Keywords:

Permanent magnet, Faradays law, Lorentz force, Magnetic field, Eddy current

Abstract

Road and rail vehicles and aircraft rely mainly or solely on friction brakes. These brakes pose several problems, especially in hybrid vehicles: significant wear, fading, complex and slow actuation, lack of fail-safe features, increased fuel consumption due to power assistance, and requirement for anti-lock controls. To solve these problems, a contactless magnetic brake has been proposed. This concept includes a novel flux-shunting structure to control the excitation flux generated by permanent magnets. This brake is wear-free, less-sensitive to temperature than friction brakes, has fast and simple actuation, and has a reduced sensitivity to wheel-lock.A simple theory is proposed using Faraday's law and the Lorentz force. With this theory, magnetic braking on Aluminum disc, rotating through a magnetic field is explained.In this work an attempt is made to show that the braking of an electric drives in industries and automobiles using permanent magnets which produce energy while braking and it is a similar one to that of the existing electric regenerative braking. Also to show permanent magnetic system is a better one than existing electromagnetic brake, eddy current brake and electric brakes, etc.

Other Details

Paper ID: IJSRDV4I20886
Published in: Volume : 4, Issue : 2
Publication Date: 01/05/2016
Page(s): 931-933

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