Stress analysis of JT-60U tokamak

Author

Horie, T. ; Ando, T. ; Horiike, H. ; Kushima, T. ; Matsukawa, M. ; Neyatani, Y. ; Ninomiya, H. ; Yamamoto, M.

Author_Institution

JAERI, Ibaraki, Japan

fYear

1989

fDate

2-6 Oct 1989

Firstpage

1355

Abstract

Stress analyses of the JT-60U (JAERI Tokamak-60 Upgrade) vacuum vessel and the poloidal-field coil (PFC) support structures are described. A method for treating the nonlinear friction force acting on PFC support structures from the PF coils is proposed. The result of the stress analysis indicates the validity of the present method. Various candidates for the vacuum vessel structure and the support method are compared to determine the basic concept of the machine. The multi-arc cross-section vacuum vessel with midplane supports proved to have sufficient strength through both the static and the dynamic stress analyses, prompting its selection as the JT-60U vacuum vessel. The dynamic coupled effect between the PFC support structures and the vessel is estimated to assess the strength of the clamps which fix the structures from the base

Keywords

Tokamak devices; fusion reactor theory and design; JT-60U; midplane supports; multi-arc cross-section vacuum vessel; nonlinear friction force; poloidal-field coil; support structures; Clamps; Coils; Electromagnetic forces; Elementary particle vacuum; Friction; Plasmas; Stress; Thermal expansion; Thermal force; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on

Conference_Location

Knoxville, TN

Type

conf

DOI

10.1109/FUSION.1989.102462

Filename

102462