Dynamical analysis of a flywheel-superconducting bearing with a moving magnet support

A lateral stiffness improvement approach based on a moving magnet support is developed to reduce the vibration of a flywheel rotor-high temperature superconductor (HTS) bearing. A flywheel rotor levitated with an HTS bearing is modelled and then analysed with a moving stator magnet placed above the...

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Published in:Superconductor science & technology 2003-11, Vol.16 (11), p.1268-1272, Article 1268
Main Authors: Sivrioglu, Selim, Nonami, Kenzo
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Language:English
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creator Sivrioglu, Selim
Nonami, Kenzo
description A lateral stiffness improvement approach based on a moving magnet support is developed to reduce the vibration of a flywheel rotor-high temperature superconductor (HTS) bearing. A flywheel rotor levitated with an HTS bearing is modelled and then analysed with a moving stator magnet placed above the rotor. A dynamic support principle is introduced based on moving the stator magnet in anti-phase with the rotor displacement for small variations. A complete dynamical equation of the flywheel rotor is derived including gyroscopic and imbalance effects. The simulation results showed that the dynamic support of the flywheel rotor with additional stator magnet movements decreases the vibration of the flywheel rotor considerably.
doi_str_mv 10.1088/0953-2048/16/11/003
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title Dynamical analysis of a flywheel-superconducting bearing with a moving magnet support
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