Application of Lorentz force to a magnetic levitation system for a non-magnetic thin plate

Takahisa Ohji*, Takashi Shinkai, Kenji Amei, Masaaki Sakui

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

12 被引用数 (Scopus)

抄録

This paper proposes a new magnetic levitation system using both Lorentz force and Coulomb force for a non-magnetic thin plate. The eddy current induced in a conductive plate generates not only the repulsive force between an ac electromagnet and the plate but also the heat loss. To take a new levitation force different from that Coulomb force, electromagnets was arranged at just sides of the eddy current path. In this case, since the magnetic flux act as vector product to the eddy current, quasi-static Lorentz forces are generated to the plate effectively. First, for verifying the mechanism of the generation of quasi-static Lorentz forces, experimental equipment having three U-shape ac electromagnets was fabricated. As a result, new forces equivalent to the Lorentz forces, which was proportional to induced currents of additional electromagnets, was extracted. Further, the tendency of forces verified in that experiment was also verified by finite element analysis.

本文言語英語
ページ(範囲)40-43
ページ数4
ジャーナルJournal of Materials Processing Technology
181
1-3 SPEC. ISS.
DOI
出版ステータス出版済み - 2007/01/01

ASJC Scopus 主題領域

  • セラミックおよび複合材料
  • コンピュータ サイエンスの応用
  • 金属および合金
  • 産業および生産工学

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