A study of the design for touch free linear eddy current brake

This paper describes the performances of eddy current brake according to th e design parameters. The characteristics are analyzed by using 2-dimensiona l Finite Element Method (2-D FEM) in order to predict the effect of the des ign parameters. The magnet stack width is determined from equivalent stack width that is calculated by solution of the field with scalar potential. Th e validity of available calculation program with FEM is achieved by compari ng with experimental value. From the results, the optimized magnet configur ation of the eddy current braking system is designed to obtain not only the maximum braking force but also the minimum attraction force.