Reducing resonant vibration of a rotor by tuning the gap between a superconducting bulk and a permanent magnet

Y. Yubisui, R. Amano, Toshihiko Sugiura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This study investigated passing through a critical speed of a rotor supported by a superconductor with an electromagnet. Here we adopted the idea that the gap between the superconductor and the rotor can be tuned variably by using electromagnetic force of the electromagnet so that the natural frequency or the stiffness can be changed. By using this method, it can be expected that resonant vibration be reduced. We developed an analytical model and then carried out numerical simulation. Numerical results show that considerable reduction of the resonant amplitude can be achieved by proper tuning of switching the electromagnet.

Original languageEnglish
Title of host publicationPhysics Procedia
PublisherElsevier
Pages253-256
Number of pages4
Volume45
DOIs
Publication statusPublished - 2013
Event25th International Symposium on Superconductivity, ISS 2012 - Tokyo, Japan
Duration: 2012 Dec 32012 Dec 5

Other

Other25th International Symposium on Superconductivity, ISS 2012
CountryJapan
CityTokyo
Period12/12/312/12/5

Fingerprint

resonant vibration
electromagnets
permanent magnets
rotors
tuning
critical velocity
resonant frequencies
stiffness
electromagnetism
simulation

Keywords

  • Electromagnets
  • High-Tc superconductors
  • Nonlinear dynamical systems
  • Rotors
  • Vibrations

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Reducing resonant vibration of a rotor by tuning the gap between a superconducting bulk and a permanent magnet. / Yubisui, Y.; Amano, R.; Sugiura, Toshihiko.

Physics Procedia. Vol. 45 Elsevier, 2013. p. 253-256.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yubisui, Y, Amano, R & Sugiura, T 2013, Reducing resonant vibration of a rotor by tuning the gap between a superconducting bulk and a permanent magnet. in Physics Procedia. vol. 45, Elsevier, pp. 253-256, 25th International Symposium on Superconductivity, ISS 2012, Tokyo, Japan, 12/12/3. https://doi.org/10.1016/j.phpro.2013.05.015
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AB - This study investigated passing through a critical speed of a rotor supported by a superconductor with an electromagnet. Here we adopted the idea that the gap between the superconductor and the rotor can be tuned variably by using electromagnetic force of the electromagnet so that the natural frequency or the stiffness can be changed. By using this method, it can be expected that resonant vibration be reduced. We developed an analytical model and then carried out numerical simulation. Numerical results show that considerable reduction of the resonant amplitude can be achieved by proper tuning of switching the electromagnet.

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