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Article type: Research Article
Authors: Rodriguez, Elkina | Sotelo, Guilherme G.b; * | de Oliveira, Janaína G.c; d | Santiago, Juan ded | Rossander, Morgand | Stephan, Richard M.a
Affiliations: [a] Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil | [b] Universidade Federal Fluminense, Niterói, RJ, Brazil | [c] Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil | [d] Uppsala University, Ångströmlaboratoriet Box 534, Uppsala, Sweden
Correspondence: [*] Corresponding author: Guilherme G. Sotelo, Rua Passo da Pátria, 156, Bl. E, room 431, CEP.:24.210-240, Niterói, Rio de Janeiro, Brazil. Tel.: +55 21 2629 5358; E-mail:[email protected]
Abstract: This paper presents simulations and experimental results for two types of Passive Permanent Magnet Bearings. The bearing system under investigation consists of two permanent magnet rings opposing to each other in two different configurations. The influence of parameters, such as thickness and radius of permanent magnets, in the force is presented through FEM calculations. Two setups of passive magnetic bearings have been built. Static measurements of radial and axial forces are reported and results compared with simulations. Also, dynamic tests show the behavior of the bearing and the magnitudes of force in the foothold. The results are presented to show trends in the parameters, so the conclusions are applicable for other sizes and applications. As an example, the application as a top bearing for a 12 kW vertical axis wind turbine is considered.
Keywords: Permanent magnetic bearing, finite element method, vertical axis bearing
DOI: 10.3233/JAE-150162
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 51, no. 2, pp. 131-149, 2016
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