Combination resonance of a magnet over a high-Tc superconductor excited vertically

Toshihiko Sugiura, Masayuki Kondo

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

Abstract

This research deals with nonlinear dynamics of a permanent magnet freely levitated above a high-Tc superconductor(HTSC) excited in the vertical direction. Magnetic force and torque can be evaluated analytically by the advanced mirror image method as nonlinear functions of both displacement and roll angle of the magnet. Equations of 3 d.o.f. motion show that the magnet has two oscillation modes due to linear coupling of the horizontal and roll motions. The both modes can be excited by nonlinear coupling with vertical motion when the superconductor is exited vertically in the neighborhood of the sum of the natural frequency of each mode. Frequency response of this combination resonance was numerically simulated. This resonance was also observed in experiments.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Design Engineering Division (Publication) DE
EditorsH.R. Hamidzadeh, H. Rahnejat, A.C.J. Luo
Pages111-116
Number of pages6
Volume111
Publication statusPublished - 2001
Event2001 ASME International Mechanical Engineering Congress and Exposition - New York, NY, United States
Duration: 2001 Nov 112001 Nov 16

Other

Other2001 ASME International Mechanical Engineering Congress and Exposition
CountryUnited States
CityNew York, NY
Period01/11/1101/11/16

Fingerprint

Superconducting materials
Magnets
Permanent magnets
Frequency response
Natural frequencies
Mirrors
Torque
Experiments

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Sugiura, T., & Kondo, M. (2001). Combination resonance of a magnet over a high-Tc superconductor excited vertically. In H. R. Hamidzadeh, H. Rahnejat, & A. C. J. Luo (Eds.), American Society of Mechanical Engineers, Design Engineering Division (Publication) DE (Vol. 111, pp. 111-116)

Combination resonance of a magnet over a high-Tc superconductor excited vertically. / Sugiura, Toshihiko; Kondo, Masayuki.

American Society of Mechanical Engineers, Design Engineering Division (Publication) DE. ed. / H.R. Hamidzadeh; H. Rahnejat; A.C.J. Luo. Vol. 111 2001. p. 111-116.

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

Sugiura, T & Kondo, M 2001, Combination resonance of a magnet over a high-Tc superconductor excited vertically. in HR Hamidzadeh, H Rahnejat & ACJ Luo (eds), American Society of Mechanical Engineers, Design Engineering Division (Publication) DE. vol. 111, pp. 111-116, 2001 ASME International Mechanical Engineering Congress and Exposition, New York, NY, United States, 01/11/11.
Sugiura T, Kondo M. Combination resonance of a magnet over a high-Tc superconductor excited vertically. In Hamidzadeh HR, Rahnejat H, Luo ACJ, editors, American Society of Mechanical Engineers, Design Engineering Division (Publication) DE. Vol. 111. 2001. p. 111-116
Sugiura, Toshihiko ; Kondo, Masayuki. / Combination resonance of a magnet over a high-Tc superconductor excited vertically. American Society of Mechanical Engineers, Design Engineering Division (Publication) DE. editor / H.R. Hamidzadeh ; H. Rahnejat ; A.C.J. Luo. Vol. 111 2001. pp. 111-116
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