Optimized multi-layer radial permanent magnet bearing with an eddy current damping systems

Abstract This research work proposes the conventional and novel eddy current damping systems (CECDS & NECDS) for an optimized multi-layer radial permanent magnet bearing, which is axially magnetized. Firstly, design optimization of a bearing are carried out by adopting general procedure maximum force stiffness selecting stator outer diameter, air gap, length as parameters. The concerning structure also calculated using semi-analytical equations, results validated with three-dimensional (3D) finite element analysis results. Then, both forces coefficients 3D electromagnetic transient in ANSYS. proposed dampers provide adequate to structure, conductor plate thickness significantly affects characteristics. NECDS could be used replace type it eliminates effect reduced gap on performance bearing.