Simultaneous Suppression of Translational and Tilt Vibrations in a Superconducting Magnetic Levitation System by a Gyroscopic Damper

Kentaro Fujita, Toshihiko Sugiura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this paper, suppression effect of a gyroscopic damper on vibrations of a body levitated by magnetic force acting from superconductors is investigated by numerical calculations. Because of the low damping property of the superconducting magnetic levitation system, simultaneous suppression of multi-degree-of-freedom vibration due to the coupled translational and tilting motions of the levitating body and suppression of nonlinear vibration are important development issues. A gyroscopic damper has been considered as a passive vibration suppression method that takes advantage of the control-free features of superconducting magnetic levitation systems, and if the design parameters are optimized, it may be possible to simultaneously suppress not only tilt vibration but also translational vibration. In this paper, the governing equations are first derived from the analytical model, and then numerical calculations are performed. As a result, the simultaneous suppression effect of the gyroscopic damper on the translational and tilt vibrations of the levitating body was numerically confirmed. Furthermore, the suppression effect of the gyroscopic damper on the nonlinear vibration of the levitating body was also confirmed numerically.

Original languageEnglish
Article number3601904
JournalIEEE Transactions on Applied Superconductivity
Volume32
Issue number4
DOIs
Publication statusPublished - 2022 Jun 1

Keywords

  • Amplitude reduction
  • gyroscopic damper
  • multi-degree-of-freedom vibration
  • nonlinear resonance
  • superconducting magnetic levitation

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Simultaneous Suppression of Translational and Tilt Vibrations in a Superconducting Magnetic Levitation System by a Gyroscopic Damper'. Together they form a unique fingerprint.

Cite this