The influence of slit construction on the eddy current braking torque considered by 3D FEM analysis

In the past, most analysis of eddy-current brakes published used 2D FEM analysis or analytic method. However, analytic computation or 2D FEM analysis of the braking force is impossible without major simplification of the phenomena. Especially complex geometry such as slit of disc cannot be fully considered by 2D FEM analysis. In this paper, the influence of slit construction upon the performance of eddy-current brake is considered by 3D FEM.