Dynamic characteristics and finite element analysis of a magnetic levitation system using a YBCO bulk superconductor

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    23 Citations (Scopus)

    Abstract

    We have been developing a magnetic levitating device with two-dimensional movement, namely a 'levitating X-Y transporter'. For the real design of a levitating X-Y transporter, it is necessary to clarify the levitation characteristics, such as the lift, the levitation height and the stability against mechanical disturbances. Furthermore various kinds of force may be applied to the levitating part and cause mechanical oscillation. Therefore the characteristics of oscillation are also important factors in the dynamic stability of such a levitation system. In this paper, we examine experimentally the lift and the restoring force and develop a new simulation code based on the three-dimensional hybrid finite and boundary element method to analyse the dynamic electromagnetic behaviour of the HTS bulk. We have investigated a suitable permanent-magnet arrangement to enhance the levitation characteristics through experiment and numerical simulation. We can then determine the suitable conditions for stable levitation from those results.

    Original languageEnglish
    JournalSuperconductor Science and Technology
    Volume17
    Issue number5
    DOIs
    Publication statusPublished - 2004 May

    Fingerprint

    Magnetic levitation
    levitation
    dynamic characteristics
    Superconducting materials
    Magnetic devices
    Finite element method
    Mechanical stability
    Boundary element method
    transporter
    Permanent magnets
    Computer simulation
    dynamic stability
    oscillations
    boundary element method
    permanent magnets
    Experiments
    finite element method
    disturbances
    simulation
    electromagnetism

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)
    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

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    abstract = "We have been developing a magnetic levitating device with two-dimensional movement, namely a 'levitating X-Y transporter'. For the real design of a levitating X-Y transporter, it is necessary to clarify the levitation characteristics, such as the lift, the levitation height and the stability against mechanical disturbances. Furthermore various kinds of force may be applied to the levitating part and cause mechanical oscillation. Therefore the characteristics of oscillation are also important factors in the dynamic stability of such a levitation system. In this paper, we examine experimentally the lift and the restoring force and develop a new simulation code based on the three-dimensional hybrid finite and boundary element method to analyse the dynamic electromagnetic behaviour of the HTS bulk. We have investigated a suitable permanent-magnet arrangement to enhance the levitation characteristics through experiment and numerical simulation. We can then determine the suitable conditions for stable levitation from those results.",
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