Abstract
Characteristics of high-Tc superconducting levitation systems are no contact support and stable levitation without control. They can be applied to supporting mechanisms in machines, such as linear-drives and magnetically levitated trains. But small damping due to noncontact support and nonlinearity in the magnetic force can easily cause complicated phenomena of nonlinear dynamics. This research deals with nonlinear oscillation of a rigid bar supported at its both ends by electro-magnetic forces between superconductors and permanent magnets as a simple modeling of the above application. Deriving the equation of motion, we discussed an effect of nonlinearity in the magnetic force on dynamics of the levitated body: occurrence of combination resonance in the asymmetrical system. Numerical analyses and experiments were also carried out, and their results confirmed the above theoretical prediction.
| Original language | English |
|---|---|
| Pages (from-to) | 783-788 |
| Number of pages | 6 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 426-431 |
| Issue number | I |
| DOIs | |
| Publication status | Published - 2005 Oct 1 |
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Keywords
- Forced vibration
- Nonlinear dynamics
- Superconducting levitation
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Nonlinear oscillation of a rigid body over high-Tc superconductors supported by electro-magnetic forces. / Sugiura, Toshihiko; Ogawa, S.; Ura, H.
In: Physica C: Superconductivity and its Applications, Vol. 426-431, No. I, 01.10.2005, p. 783-788.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nonlinear oscillation of a rigid body over high-Tc superconductors supported by electro-magnetic forces
AU - Sugiura, Toshihiko
AU - Ogawa, S.
AU - Ura, H.
PY - 2005/10/1
Y1 - 2005/10/1
N2 - Characteristics of high-Tc superconducting levitation systems are no contact support and stable levitation without control. They can be applied to supporting mechanisms in machines, such as linear-drives and magnetically levitated trains. But small damping due to noncontact support and nonlinearity in the magnetic force can easily cause complicated phenomena of nonlinear dynamics. This research deals with nonlinear oscillation of a rigid bar supported at its both ends by electro-magnetic forces between superconductors and permanent magnets as a simple modeling of the above application. Deriving the equation of motion, we discussed an effect of nonlinearity in the magnetic force on dynamics of the levitated body: occurrence of combination resonance in the asymmetrical system. Numerical analyses and experiments were also carried out, and their results confirmed the above theoretical prediction.
AB - Characteristics of high-Tc superconducting levitation systems are no contact support and stable levitation without control. They can be applied to supporting mechanisms in machines, such as linear-drives and magnetically levitated trains. But small damping due to noncontact support and nonlinearity in the magnetic force can easily cause complicated phenomena of nonlinear dynamics. This research deals with nonlinear oscillation of a rigid bar supported at its both ends by electro-magnetic forces between superconductors and permanent magnets as a simple modeling of the above application. Deriving the equation of motion, we discussed an effect of nonlinearity in the magnetic force on dynamics of the levitated body: occurrence of combination resonance in the asymmetrical system. Numerical analyses and experiments were also carried out, and their results confirmed the above theoretical prediction.
KW - Forced vibration
KW - Nonlinear dynamics
KW - Superconducting levitation
UR - http://www.scopus.com/inward/record.url?scp=25444466912&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=25444466912&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2005.01.050
DO - 10.1016/j.physc.2005.01.050
M3 - Article
AN - SCOPUS:25444466912
VL - 426-431
SP - 783
EP - 788
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - I
ER -