THE DYNAMIC STABILITY OF A ROTOR PASSIVE MAGNETIC BEARING WITH AN HALBACH-ARRAY

Abstract

This paper describes the finite element method investigation of the permanent magnetic bearing (PMB) and spin tests of the PMB rotor suspension system. In order to increase the radial stiffness of the PMB, the Halbach-array configuration of the permanent magnets was used. The magnetic flux density of the PMB was investigated due to air gap. The test rig with the passive magnetic suspension is provided by one radial PMB on one end of the rotor. The rotor spin tests are performed for different desired unbalance, and rotor vibrations were presented.