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Title: Viability of a Frictionless Bearing with Permanent Magnets and HTS Bulks
Authors: Arsénio, António
Carvalho, Martim
Cardeira, Carlos
Branco, Paulo
Rui, Melício
Keywords: Frictionless rotating bearing
levitation and guidance forces
zero field cooling
permanent magnets
HTS bulks
Issue Date: Sep-2016
Abstract: This paper studies the technical viability of a frictionless rotating bearing model comprising one inner rotor part with discontinuous rings with permanent magnets and one outer stator part with discontinuous rings with high temperature superconducting bulks, distributed on a geometric arrangement that guarantees enhanced levitating and guidance forces using the zero field cooling technique. Extensive Finite Element model simulations were carried out to estimate levitation and guidance forces depending on the air gap dimensions. Eccentricity and axial displacement of the rotor are estimated depending on the external radial and axial forces applied to the rotor. Finally, the proposed design of a viable and feasible frictionless bearing prototype is foreseen.
Type: lecture
Appears in Collections:FIS - Comunicações - Em Congressos Científicos Internacionais

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