Hybrid superconducting magnetic suspensions

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.511400· OSTI ID:287696

Tixador, P; Hiebel, P; Brunet, Y ^[1]; Chaud, X; Gautier-Picard, P ^[2]

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1. CNRS-CRTBT/LEG, Grenoble (France)
2. CNRS-EPM-Matformag, Grenoble (France)

Superconductors, especially high T{sub c} ones, are the most attractive materials to design stable and fully passive magnetic suspensions which have to control five degrees of freedom. The hybrid superconducting magnetic suspensions present high performances and a simple cooling mode. They consist of a permanent magnet bearing, stabilized by a suitable magnet-superconductor structure. Several designs are given and compared in terms of forces and stiffnesses. The design of the magnet bearing plays an important part. The superconducting magnetic bearing participates less in levitation but must provide a high stabilizing stiffness. This is achieved by the magnet configuration, a good material in term of critical current density and field cooling. A hybrid superconducting suspension for a flywheel is presented. This system consists of a magnet thrust bearing stabilized by superconductors interacting with an alternating polarity magnet structure. First tests and results are reported. Superconducting materials are magnetically melt-textured YBaCuO.

• OSTI ID: 287696
• Report Number(s): CONF-950691--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 4Pt1 Vol. 32; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
66 PHYSICS
BARIUM OXIDES
COPPER OXIDES
DESIGN
FLYWHEELS
HIGH-TC SUPERCONDUCTORS
HYBRID SYSTEMS
LEVITATION
MAGNETIC BEARINGS
SUPERCONDUCTING DEVICES
YTTRIUM OXIDES