Vibration Optimized Magnetic Rotor Suspension with Individual Permanent Magnets

Kurzfassung

In this paper, an investigation of a vibration-optimized arrangement of individual permanent magnets for radialmagnetic suspension of a machine rotor is presented. In contrast to previous work. the investigationconsiders spacing constraints between individual magnets that may appear in a 3D printed machine design. It is shownby means of a finite element (FE) simulation that the magnitude of the suspension force fluctuates depending on the rotorrotation angle and may hence cause vibrations during machine operation. It is investigated how these magnitudefluctuations depend on the concrete configuration of the individual magnets and which configurations lead to a minimumof fluctuations and hence a minimum of suspension related machine vibrations.