Vibration control for a high-Tc superconducting non-linear levitation system

K. Nagaya, M. Tsukagoshi, Y. Kosugi, M. Murakami

研究成果: Article査読

15 被引用数 (Scopus)

抄録

In the present paper the modelling and control of a high-Tc superconducting levitation system are discussed. First, the analytical expressions for obtaining the non-linear levitation force, given by the present author, are clarified; and then a vibration control method is presented in which feedback currents involving frequency weights are used. In the method, the square of the displacement in the frequency domain is taken as a cost function. Optimal coefficients of the transfer function of the controller are obtained by minimizing the cost function. Hence, the spillover instability due to the non-linear vibrations will be reduced. Numerical calculations have been carried out for some typical problems. To validate the present method, experimental tests have also been carried out.

本文言語English
ページ(範囲)299-311
ページ数13
ジャーナルJournal of Sound and Vibration
208
2
DOI
出版ステータスPublished - 1997 11 27
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 音響学および超音波学
  • 機械工学

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