Electrodynamic thrust bearings (EDTBs) can provide the rotor axial levitation solely relying on passive phenomena. Their implementation can be based either on an axial flux (AFEDTB) or on a radial flux configuration (RFEDTB). In the last twenty years, two main AFEDTBs topologies have been studied. Recently, these two topologies were generalised, thus enlarging the AFEDTB implementations. By contrast, as regards RFEDTBs, only one topology has been proposed so far. Although theoretical and experimental data exist for both implementations, the latter have never been compared. In this context, this paper introduces a set of new topologies generalising the existing RFEDTB structure. In addition, an AFEDTB and a RFEDTB topologies are optimised through a genetic algorithm and then compared. Although the two selected topologies can exert a motor torque, this paper only focuses on the bearing function, providing us an upper bound to the bearing performance of such kind of passive electrodynamic thrust self-bearing motors.
Optimisation and Comparison of Axial Flux and Radial Flux Electrodynamic Thrust Bearings
2018-01-01
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Electrodynamic , thrust , bearing , axial flux , radial flux , optimisation , comparison
DDC: | 629 |
Comparison of Radial Flux PMSM and Axial Flux PMSM for Hybrid Electric Tracked Vehicles
Springer Verlag | 2021
|Dynamic modelling of passive electrodynamic self-bearing axial-flux permanent magnet machines
BASE | 2017
|Model based design of a rotor supported by radial electrodynamic bearings
Tema Archiv | 2012
|