Magnetic stiffness of a coupled high-Tc superconducting levitation system

Toshihiko Sugiura, H. Ura, K. Kuroda

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

High-Tc superconducting levitation systems, such as flywheels and linear-drives, have very small damping, because of their no contact support. Thus, they can show complicated phenomena of dynamics due to nonlinearity in their magnetic force or torque. In mechanical design of such systems, it is important to evaluate their nonlinear dynamics, though it has not been well studied so far. As one modeling of such an application system, we consider a magnetically coupled system of several permanent magnets and high-Tc superconducting bulks. It is a multi-degree-of-freedom dynamical system showing complicated motion caused by nonlinear interaction between levitated magnets and superconducting bulks. This research deals with magnetic stiffness of a coupled superconducting levitation system. As a fundamental dynamical property of the system, we evaluate the stiffness by doing experiment and analysis, and examine nonlinear effect on this property.

Original languageEnglish
Pages (from-to)648-653
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct

Fingerprint

levitation
stiffness
Stiffness
flywheels
Flywheels
permanent magnets
dynamical systems
Permanent magnets
Magnets
torque
Dynamical systems
magnets
Torque
degrees of freedom
Damping
damping
nonlinearity
Experiments
interactions

Keywords

  • Magnetic stiffness
  • Nonlinear dynamics
  • Superconducting levitation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Magnetic stiffness of a coupled high-Tc superconducting levitation system. / Sugiura, Toshihiko; Ura, H.; Kuroda, K.

In: Physica C: Superconductivity and its Applications, Vol. 392-396, No. PART 1, 10.2003, p. 648-653.

Research output: Contribution to journalArticle

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