Ｙ系高温超電導体を用いた磁気軸受の構造と周波数応答関数

• 樋笠 博正

  四国総合研究所

• 高畑 良一

  光洋精工

• 今泉 寛

  セイコーエプソン

• 宮 健三

  東京大学

書誌事項

タイトル別名

• Frequency responce function of magnetic bearings using high temperature superconductor.
• Yケイ コウオン チョウデンドウタイ オ モチイタ ジキ ジクウケ ノ コウゾ

抄録

High-temperature superconductor Y Ba₂Cu₃O_7-x with strong pinning force has allowed the realization of stable magnetic suspension with no control. Two type superconducting magnetic bearings (SMB) using YBCO and permanent magnet were assembled. There were a radial type and an axial type. Dynamic stiffness of each SMB, while being cooled down under a magnetic field by liquid nitrogen, was measured both in radial and axial directions. As a result, it was found that the spring constants of these SMBs were almost as large as a practically desirable value but their damping coefficients were lower than the practical level. These findings are useful as one of the data bases for development of an optimum SMB design to support the weight of rotors in an axial direction.

収録刊行物

• 電気学会論文誌Ｄ（産業応用部門誌）

  電気学会論文誌Ｄ（産業応用部門誌） 115 (10), 1276-1283, 1995

  一般社団法人 電気学会

キーワード

• 超電導
• 磁気軸受
• 永久磁石
• 動剛性
• 靜剛性
• 周波数

詳細情報

• CRID: 1390001204655668736
• NII論文ID: 10001688850
• NII論文ID: 10004163814
• NII書誌ID: AN10012320
• DOI: 10.1541/ieejias.115.1276
• ISSN: 13488163
• ISSN: 09136339
• NDL書誌ID: 3625407
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3625407
• Web Site: http://www.jstage.jst.go.jp/article/ieejias1987/115/10/115_10_1276/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可