Abstract
Energy distributing systems need to be equipped with adequate energy storage devices. Electric accumulators and flywheels currently belong to the most frequently used ones. For proper operation of flywheels, the minimum energy losses in the support elements are essential. Contactless high temperature superconducting bearings based on magnetic levitation offer efficient technological solution. This paper deals with modeling of high-speed vertical flywheels mounted in superconducting bearings and investigation of their behavior. Computational simulations are focused on determination of amplitude of flywheel vibrations and magnitude of bearing forces transmitted between the rotating and stationary parts. Three operation regimes were investigated. The results of simulations show that magnitude of the magnetic moment of the permanent magnets attached to the flywheel journals (the movable part of the superconducting bearings) have a significant effect on their technological parameters. The performed study is based on computational simulations utilizing the experimentally verified theories from the field of mechanics and electromagnetics.
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Acknowledgement
The research work was funded by project of the Czech Academy of Sciences Strategy AV21 (section Efficient Energy Transformation and Storage), the institutional research project RVO: 61388998 and by the Czech Science Foundation (project No. 21-11089S). The support is highly acknowledged.
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Zapoměl, J., Koláček, J., Kozánek, J., Košina, J. (2023). Analysis of Levitated Flywheels Mounted in Superconducting Bearings. In: Okada, M. (eds) Advances in Mechanism and Machine Science. IFToMM WC 2023. Mechanisms and Machine Science, vol 147. Springer, Cham. https://doi.org/10.1007/978-3-031-45705-0_83
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DOI: https://doi.org/10.1007/978-3-031-45705-0_83
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