Design, Fabrication and Parametric Analysis of Electromagnetic Braking System

The aim of this practical study was testing as well as analysis of parametric dependency on braking torque. The experimentation was done by fabrication of eddy current braking system in optimized way in terms of size of braking system, weight of material used for fabrication, shape of the complete braking system for appropriate application and overall cost. The methodology used was practical study of variation of electrical as well as mechanical parameters on braking without losses, wear & tear in addition to noise due to the friction The eddy current barking is caused by the influences of magnetic flux on non-magnetic materials which have certain conductivity and are in motion. In this study magnetic flux is produced by the electromagnets which are interfaced to the rotating discs via air gap. The rotating discs are mounted on a shaft, which is driven through a prime mover or any other rotating device, the braking of which needs to be done. The complete assembly is mounted on a mild steel frame in order to increase the stability as well as to reduce the system vibrations. After energization of electromagnets, the production of eddy currents on the disc elements was realized, wherein the flux produced by eddy currents interacts with the stators flux which causes braking of the rotating element. The variations in the braking torque due to change of various electrical and mechanical parameter has been practically studied through lab experimentation. The results of this investigation prove that the electromagnetic braking is more appropriate as compared to mechanical braking. The probable applications of the result of the study are in electrical vehicles in automotive sector, braking of electrical motors in manufacturing sectors.