scholarly journals Dynamic Magnetic Force Analysis in High-Tc Superconducting Levitation.

1994 ◽  
Vol 60 (570) ◽  
pp. 490-497 ◽  
Author(s):  
Mitsuru Uesaka ◽  
Yoshikatsu Yoshida ◽  
Kenzo Miya
Keyword(s):  
Magnetic Force ◽  
Force Analysis ◽  
High Tc ◽  
Superconducting Levitation

scholarly journals Vibration reduction using autoparametric resonance in a high-Tc superconducting levitation system

2014 ◽  
Vol 507 (3) ◽  
pp. 032045
Author(s):  
Hiroshi Yamasaki ◽  
Toyoki Takazakura ◽  
Ryunosuke Sakaguchi ◽  
Toshihiko Sugiura
Keyword(s):  
Vibration Reduction ◽  
High Tc ◽  
Autoparametric Resonance ◽  
Levitation System ◽  
Superconducting Levitation

Combination Resonance of a Magnet Over a High-TC Superconductor Excited Vertically

2001 ◽  
Author(s):  
Toshihiko Sugiura ◽  
Masayuki Kondo
Keyword(s):  
Magnetic Force ◽  
Vertical Direction ◽  
Vertical Motion ◽  
Mirror Image ◽  
Image Method ◽  
Combination Resonance ◽  
Nonlinear Functions ◽  
High Tc ◽  
High Tc Superconductor ◽  
Oscillation Modes

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.

Vibration control of the high-TC superconducting levitation synchronous motor

2010 ◽  
Vol 33 (1-2) ◽  
pp. 495-502
Author(s):  
Iwanori Murakami ◽  
Akinori Yoshizawa ◽  
Yuusuke Kobayashi ◽  
Yoshinori Ando ◽  
Kou Yamada ◽  
...  
Keyword(s):  
Vibration Control ◽  
Synchronous Motor ◽  
High Tc ◽  
Superconducting Levitation
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