Radial-axial passive magnetic bearing system — Numerical simulation aided design solutions

This paper presents a technical solution for bearings that combines axial sustentation and radial coupling, for the transmission of rotary motion, which is using permanents only assembled in a unique system. The ensemble is equipped to measure forces, torques, and displacements, and it may be equipped with different inertial masses. Mathematical modeling and numerical simulation are used in the design phase of the prototype with the aim to determine the forces that occur and the coupling torque, the deformations and stress related to total static loads and the first two eigenmodes for the main mechanical parts, which unveil fine details concerning the stability of the bearing system.