Study on fluctuations in supporting force of conductors caused by fluctuations in conductor dimensions

Author

Takao, T. ; Tsukamoto, O. ; Amemiya, N. ; Nishimura, A. ; Mito, T. ; Tamura, H. ; Yamamoto, J. ; Motojima, O.

Author_Institution

Fac. of Sci. & Technol., Sophia Univ., Tokyo, Japan

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

484

Lastpage

487

Abstract

The authors are investigating fluctuations of contact force between a conductor and a spacer, and the possibility of local conductor motion in the helical coils of the Large Helical Device (LHD) which will be installed in National Institute for Fusion Science (NIFS). They performed an experiment to study the rigidity of the helical coils and fluctuations in the contact force caused by the irregularity of conductor bends and spacer dimensions by making a model coil pack. A theory is proposed to statistically estimate the fluctuations in the contact force. The theory is explained and the experimental results are shown and compared with the theory. The theory agrees well with the experimental results.<>

Keywords

fluctuations; fusion reactor theory and design; superconducting magnets; LHD; Large Helical Device; conductor dimension fluctuation; contact force fluctuations; fusion reactor; helical coils; local conductor motion; model coil pack; rigidity; spacer dimensions; superconducting coils; supporting force; Argon; Axles; Conductors; Current density; Fluctuations; Gaussian distribution; Large-scale systems; Stability; Superconducting coils;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233748

Filename

233748