Static and dynamic characteristics of superconducting magnetic bearings using MPMG Y-Ba-Cu-O

Hiromasa Fukuyama, Kazutoshi Seki, Hiroshi Takaichi, Masato Murakami

研究成果: Article

抄録

Measurements of the static forces were performed for various types of superconducting magnetic bearings at liquid nitrogen temperature. It was found that the stiffness of the superconducting bearing was rather small; however, both the electromagnetic forces and the stiffness could be increased by using a combination of a thrust and radial bearing. It was also found that the stiffness could be increased by using the attractive force due to flux pinning. Based on these measurements, a practical superconducting magnetic bearing was designed and constructed, where a 2.4 kg rotor could rotate at 33 000 rpm.

元の言語English
ページ(範囲)128-134
ページ数7
ジャーナルJSME International Journal, Series C: Dynamics, Control, Robotics, Design and Manufacturing
38
発行部数1
出版物ステータスPublished - 1995 3
外部発表Yes

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Magnetic bearings
Bearings (structural)
Stiffness
Flux pinning
Liquid nitrogen
Rotors
Temperature

ASJC Scopus subject areas

  • Engineering(all)

これを引用

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AB - Measurements of the static forces were performed for various types of superconducting magnetic bearings at liquid nitrogen temperature. It was found that the stiffness of the superconducting bearing was rather small; however, both the electromagnetic forces and the stiffness could be increased by using a combination of a thrust and radial bearing. It was also found that the stiffness could be increased by using the attractive force due to flux pinning. Based on these measurements, a practical superconducting magnetic bearing was designed and constructed, where a 2.4 kg rotor could rotate at 33 000 rpm.

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