渦電流を利用した受動型磁気軸受に発生するブレーキトルクの抑制 Suppression of Braking Torque Produced by a Passive Magnetic Bearing Using Eddy Current

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In this paper, characteristics of restoring force and braking torque for a passive magnetic bearing which has a rotation ring and a the permanent magnets were studied. The restoring force increases with the rotation speed and the ring displacement. On the other hand, the braking torque is saturated with respect to the rotation speed and is constant regardless of the ring displacement. In order to improve the characteristics of the magnetic bearing, we proposed auxiliary magnet for changing distributions of the magnetic flux and the current density on the ring. As a result, the braking torque is decreased by 27% and the restoring force is increased by 30%.

収録刊行物

  • 電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society  

    電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society 128(6), 379-385, 2008-06-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021129911
  • NII書誌ID(NCID)
    AN10136312
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854205
  • NDL 記事登録ID
    9531840
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-793
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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