Theoretical and experimental study on the magnetomechanical behavior of superconducting helical coils for a fusion reactor

Tohru Takaghi, Kenzo Miya, Hiroshi Yamada, Toshiyuki Takagi

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The magnetomechanical behavior of superconducting helical coils for a magnetic fusion reactor was investigated experimentally and theoretically. Deformations of straight and torus type helical coils were caused due to static electromagnetic forces in the liquid helium cryostat and were analysed with the finite element computer code made here. Despite of a large scatter of experimental data due to a non-uniform friction force between the helical coil and the torus of stainless steel, the numerical results are very close to the mean value of the data. Numerical analysis of the force distribution acting on the helical coils was also performed for a Heliotron's coil system to characterize its nature. The force could be categorized conveniently as an extensional force, a tangential force and a toroidal force which correspond respectively to the kind of forces acting on toroidal field coils. Additionally, the effect of mechanical constraint on the magnetomechanical behavior is discussed and shows that the location of the constraint significantly affects the stress distributions in the coils.

本文言語English
ページ(範囲)61-71
ページ数11
ジャーナルNuclear Engineering and Design. Fusion
1
1
DOI
出版ステータスPublished - 1984
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

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