Parametrically excited horizontal and rolling motion of a levitated body above a high-Tc superconductor

Toshihiko Sugiura; Takaaki Aoyagi; Hiroki Ura; Masatsugu Yoshizawa

doi:10.1109/TASC.2003.813057

Parametrically excited horizontal and rolling motion of a levitated body above a high-T_c superconductor

Toshihiko Sugiura, Takaaki Aoyagi, Hiroki Ura, Masatsugu Yoshizawa

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

21 Citations (Scopus)

Abstract

This research deals with a kind of parametric excitation of a permanent magnet freely levitated above a high-T_c superconductor excited in the vertical direction. We find the magnet has two vibration modes of linearly coupled horizontal translation and roll motion. These two modes are coupled nonlinearly with the vertical motion by the magnetic force and torque. Through nonlinear analysis and numerical simulation, this research discusses parametric resonance of each mode caused by vertical excitation at the frequency in the neighborhood of twice the natural frequency of that mode. Analytical and numerical results show qualitative agreement with experimental ones.

Original language	English
Pages (from-to)	2247-2250
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	13
Issue number	2 II
DOIs	https://doi.org/10.1109/TASC.2003.813057
Publication status	Published - 2003 Jun
Event	2002 Applied Superconductivity Conference - Houston, TX, United States Duration: 2002 Aug 4 → 2002 Aug 9

ASJC Scopus subject areas

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

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10.1109/TASC.2003.813057

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title = "Parametrically excited horizontal and rolling motion of a levitated body above a high-Tc superconductor",

abstract = "This research deals with a kind of parametric excitation of a permanent magnet freely levitated above a high-Tc superconductor excited in the vertical direction. We find the magnet has two vibration modes of linearly coupled horizontal translation and roll motion. These two modes are coupled nonlinearly with the vertical motion by the magnetic force and torque. Through nonlinear analysis and numerical simulation, this research discusses parametric resonance of each mode caused by vertical excitation at the frequency in the neighborhood of twice the natural frequency of that mode. Analytical and numerical results show qualitative agreement with experimental ones.",

author = "Toshihiko Sugiura and Takaaki Aoyagi and Hiroki Ura and Masatsugu Yoshizawa",

year = "2003",

month = jun,

doi = "10.1109/TASC.2003.813057",

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journal = "IEEE Transactions on Applied Superconductivity",

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note = "2002 Applied Superconductivity Conference ; Conference date: 04-08-2002 Through 09-08-2002",

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T1 - Parametrically excited horizontal and rolling motion of a levitated body above a high-Tc superconductor

AU - Sugiura, Toshihiko

AU - Aoyagi, Takaaki

AU - Ura, Hiroki

AU - Yoshizawa, Masatsugu

PY - 2003/6

Y1 - 2003/6

N2 - This research deals with a kind of parametric excitation of a permanent magnet freely levitated above a high-Tc superconductor excited in the vertical direction. We find the magnet has two vibration modes of linearly coupled horizontal translation and roll motion. These two modes are coupled nonlinearly with the vertical motion by the magnetic force and torque. Through nonlinear analysis and numerical simulation, this research discusses parametric resonance of each mode caused by vertical excitation at the frequency in the neighborhood of twice the natural frequency of that mode. Analytical and numerical results show qualitative agreement with experimental ones.

AB - This research deals with a kind of parametric excitation of a permanent magnet freely levitated above a high-Tc superconductor excited in the vertical direction. We find the magnet has two vibration modes of linearly coupled horizontal translation and roll motion. These two modes are coupled nonlinearly with the vertical motion by the magnetic force and torque. Through nonlinear analysis and numerical simulation, this research discusses parametric resonance of each mode caused by vertical excitation at the frequency in the neighborhood of twice the natural frequency of that mode. Analytical and numerical results show qualitative agreement with experimental ones.

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EP - 2250

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2 II

T2 - 2002 Applied Superconductivity Conference

Y2 - 4 August 2002 through 9 August 2002

ER -

Parametrically excited horizontal and rolling motion of a levitated body above a high-T_c superconductor

Abstract

ASJC Scopus subject areas

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