Abstract
Analytical and experimental study of rotational accuracy of superconducting magnetic bearings depending on the arrangements of permanent magnets is presented in this paper. With the aim of improving the rotational accuracy, the axial bearing magnet ring was divided into two rings in the radial direction and the radial bearing magnet sleeve was divided into three stacked rings in the axial direction. As a result, the magnetic flux density could be increased at the superconductor ring position, the static stiffness and the load capacity were increased, and hysteresis became large. Concerning the dynamic characteristics, the rotational accuracy of the shaft was improved remarkably and the shaft weighing 2.4 kg could rotate within 15μm peak to peak at 12 000 rpm.
| Original language | English |
|---|---|
| Pages (from-to) | 270-275 |
| Number of pages | 6 |
| Journal | Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C |
| Volume | 62 |
| Issue number | 593 |
| Publication status | Published - 1996 Jan |
| Externally published | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Rotational accuracy of superconducting magnetic bearings. / Fukuyama, Hiromasa; Seki, Kazutoshi; Takizawa, Takeshi; Endou, Shigeru; Murakami, Masato; Takaichi, Hiroshi.
In: Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 62, No. 593, 01.1996, p. 270-275.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Rotational accuracy of superconducting magnetic bearings
AU - Fukuyama, Hiromasa
AU - Seki, Kazutoshi
AU - Takizawa, Takeshi
AU - Endou, Shigeru
AU - Murakami, Masato
AU - Takaichi, Hiroshi
PY - 1996/1
Y1 - 1996/1
N2 - Analytical and experimental study of rotational accuracy of superconducting magnetic bearings depending on the arrangements of permanent magnets is presented in this paper. With the aim of improving the rotational accuracy, the axial bearing magnet ring was divided into two rings in the radial direction and the radial bearing magnet sleeve was divided into three stacked rings in the axial direction. As a result, the magnetic flux density could be increased at the superconductor ring position, the static stiffness and the load capacity were increased, and hysteresis became large. Concerning the dynamic characteristics, the rotational accuracy of the shaft was improved remarkably and the shaft weighing 2.4 kg could rotate within 15μm peak to peak at 12 000 rpm.
AB - Analytical and experimental study of rotational accuracy of superconducting magnetic bearings depending on the arrangements of permanent magnets is presented in this paper. With the aim of improving the rotational accuracy, the axial bearing magnet ring was divided into two rings in the radial direction and the radial bearing magnet sleeve was divided into three stacked rings in the axial direction. As a result, the magnetic flux density could be increased at the superconductor ring position, the static stiffness and the load capacity were increased, and hysteresis became large. Concerning the dynamic characteristics, the rotational accuracy of the shaft was improved remarkably and the shaft weighing 2.4 kg could rotate within 15μm peak to peak at 12 000 rpm.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029762523&partnerID=8YFLogxK
M3 - Article
VL - 62
SP - 270
EP - 275
JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
SN - 0387-5024
IS - 593
ER -