A new type of active-maglev system using YBCO bulk and multiple electromagnets

Ryota Kamoshida, Hiroshi Ueda, Atsushi Ishiyama

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    We have been developing a new type of active-maglev system that is a transporter in the vertical direction, consisting of high-temperature bulk superconductors and multiple electromagnets piled up on the vertical axis. In a previous paper, using an active-maglev system composed of a disk-shaped YBCO bulk and five electromagnets, we have demonstrated continuous levitation and verified that its levitation height, as well as stability, can be remarkably improved by adjusting the operating current of the electromagnets individually. Electromagnetic behavior within the bulk has been also investigated numerically by a newly developed computer program based on the finite-element method adopting the Bean model. Agreement of levitation force and height between experiments and numerical analyses was good. The levitation force properties strongly depend on the field-cooling condition and the distribution and magnitude of the external magnetic field generated by the electromagnets. We clarify electromagnetic phenomena within the bulk superconductor by the computer program developed to improve the levitation properties for applications of continuous levitation to real maglev systems.

    Original languageEnglish
    Pages (from-to)2157-2160
    Number of pages4
    JournalIEEE Transactions on Applied Superconductivity
    Volume13
    Issue number2 II
    DOIs
    Publication statusPublished - 2003 Jun

    Fingerprint

    Electromagnets
    electromagnets
    levitation
    Superconducting materials
    Computer program listings
    electromagnetism
    computer programs
    transporter
    Magnetic fields
    Cooling
    Finite element method
    finite element method
    adjusting
    cooling
    Experiments
    magnetic fields
    Temperature

    Keywords

    • Active magnetic levitation
    • Bulk superconductor
    • FEM

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Physics and Astronomy (miscellaneous)

    Cite this

    A new type of active-maglev system using YBCO bulk and multiple electromagnets. / Kamoshida, Ryota; Ueda, Hiroshi; Ishiyama, Atsushi.

    In: IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2 II, 06.2003, p. 2157-2160.

    Research output: Contribution to journalArticle

    @article{49ac07f0dcec414bb702e0cf850a75c1,
    title = "A new type of active-maglev system using YBCO bulk and multiple electromagnets",
    abstract = "We have been developing a new type of active-maglev system that is a transporter in the vertical direction, consisting of high-temperature bulk superconductors and multiple electromagnets piled up on the vertical axis. In a previous paper, using an active-maglev system composed of a disk-shaped YBCO bulk and five electromagnets, we have demonstrated continuous levitation and verified that its levitation height, as well as stability, can be remarkably improved by adjusting the operating current of the electromagnets individually. Electromagnetic behavior within the bulk has been also investigated numerically by a newly developed computer program based on the finite-element method adopting the Bean model. Agreement of levitation force and height between experiments and numerical analyses was good. The levitation force properties strongly depend on the field-cooling condition and the distribution and magnitude of the external magnetic field generated by the electromagnets. We clarify electromagnetic phenomena within the bulk superconductor by the computer program developed to improve the levitation properties for applications of continuous levitation to real maglev systems.",
    keywords = "Active magnetic levitation, Bulk superconductor, FEM",
    author = "Ryota Kamoshida and Hiroshi Ueda and Atsushi Ishiyama",
    year = "2003",
    month = "6",
    doi = "10.1109/TASC.2003.813023",
    language = "English",
    volume = "13",
    pages = "2157--2160",
    journal = "IEEE Transactions on Applied Superconductivity",
    issn = "1051-8223",
    publisher = "Institute of Electrical and Electronics Engineers Inc.",
    number = "2 II",

    }

    TY - JOUR

    T1 - A new type of active-maglev system using YBCO bulk and multiple electromagnets

    AU - Kamoshida, Ryota

    AU - Ueda, Hiroshi

    AU - Ishiyama, Atsushi

    PY - 2003/6

    Y1 - 2003/6

    N2 - We have been developing a new type of active-maglev system that is a transporter in the vertical direction, consisting of high-temperature bulk superconductors and multiple electromagnets piled up on the vertical axis. In a previous paper, using an active-maglev system composed of a disk-shaped YBCO bulk and five electromagnets, we have demonstrated continuous levitation and verified that its levitation height, as well as stability, can be remarkably improved by adjusting the operating current of the electromagnets individually. Electromagnetic behavior within the bulk has been also investigated numerically by a newly developed computer program based on the finite-element method adopting the Bean model. Agreement of levitation force and height between experiments and numerical analyses was good. The levitation force properties strongly depend on the field-cooling condition and the distribution and magnitude of the external magnetic field generated by the electromagnets. We clarify electromagnetic phenomena within the bulk superconductor by the computer program developed to improve the levitation properties for applications of continuous levitation to real maglev systems.

    AB - We have been developing a new type of active-maglev system that is a transporter in the vertical direction, consisting of high-temperature bulk superconductors and multiple electromagnets piled up on the vertical axis. In a previous paper, using an active-maglev system composed of a disk-shaped YBCO bulk and five electromagnets, we have demonstrated continuous levitation and verified that its levitation height, as well as stability, can be remarkably improved by adjusting the operating current of the electromagnets individually. Electromagnetic behavior within the bulk has been also investigated numerically by a newly developed computer program based on the finite-element method adopting the Bean model. Agreement of levitation force and height between experiments and numerical analyses was good. The levitation force properties strongly depend on the field-cooling condition and the distribution and magnitude of the external magnetic field generated by the electromagnets. We clarify electromagnetic phenomena within the bulk superconductor by the computer program developed to improve the levitation properties for applications of continuous levitation to real maglev systems.

    KW - Active magnetic levitation

    KW - Bulk superconductor

    KW - FEM

    UR - http://www.scopus.com/inward/record.url?scp=0042473257&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0042473257&partnerID=8YFLogxK

    U2 - 10.1109/TASC.2003.813023

    DO - 10.1109/TASC.2003.813023

    M3 - Article

    VL - 13

    SP - 2157

    EP - 2160

    JO - IEEE Transactions on Applied Superconductivity

    JF - IEEE Transactions on Applied Superconductivity

    SN - 1051-8223

    IS - 2 II

    ER -