Nonlinear resonances of three modes in a high-Tc superconducting magnetic levitation system

Masahiko Sasaki, Ryunosuke Sakaguchi, Toshihiko Sugiura

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In a high-Tc superconducting magnetic levitation system, an object can levitate without control and contact. So it is expected to be applied to magnetically levitated transportation. To use it safely, lightening the levitated object is necessary. But this reduces the bending stiffness of the object. Besides, the system has nonlinearity. Therefore nonlinear elastic vibration can occur. This study focused on how plural nonlinear elastic vibrations of the 1st, 2nd and 3rd modes simultaneously occur. Our numerical calculation and experiment found out that the three modes simultaneously resonate when the amplitude of the 2nd mode is large enough whereas only the 2nd mode resonates when it is small.

Original languageEnglish
Pages (from-to)265-269
Number of pages5
JournalPhysica C: Superconductivity and its applications
Publication statusPublished - 2013 Jul 26


  • Bifurcation
  • Magnetic levitation
  • Nonlinear equation
  • Superconductor
  • Vibration

ASJC Scopus subject areas

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


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