Effects of spin-up rate on internal resonance in a high-Tc superconducting bearing system

Tatsuya Suda, Tomohiko Tange, Toshihiko Sugiura, Masatsugu Yoshizawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This research investigates transient behaviors of a rotor passing through resonance in a high-Tc superconducting bearing system. Such a low-damping multi-degree-of-freedom system, subjected to nonlinear force, can show complex dynamical behaviors, in which energy transfer occurs between modes through nonlinear coupling. Our numerical and experimental results show that, in a system of a high-Tc superconducting bearing, internal resonance can occur even in transient cases where the rotor passes through resonance. Effects of the internal resonance and also effects of the spin-up rate on the transient dynamics of the rotor have been examined and clarified by changing the period of increasing voltage applied to a D.C. motor for rotating the rotor.

Original languageEnglish
Article number5109622
Pages (from-to)2099-2102
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume19
Issue number3
DOIs
Publication statusPublished - 2009 Jun

Fingerprint

Bearings (structural)
rotors
Rotors
DC motors
Degrees of freedom (mechanics)
Energy transfer
degrees of freedom
Damping
damping
direct current
energy transfer
Electric potential
electric potential

Keywords

  • Coupled vibration
  • Internal resonance
  • Nonlinear dynamics
  • Passing through resonance
  • Superconducting levitation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Effects of spin-up rate on internal resonance in a high-Tc superconducting bearing system. / Suda, Tatsuya; Tange, Tomohiko; Sugiura, Toshihiko; Yoshizawa, Masatsugu.

In: IEEE Transactions on Applied Superconductivity, Vol. 19, No. 3, 5109622, 06.2009, p. 2099-2102.

Research output: Contribution to journalArticle

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