Locking mechanism for in-vessel components of tokamak reactor

Author

Nishio, S. ; Shimizu, K. ; Koizumi, K. ; Tada, E. ; Sato, S. ; Kudo, T. ; Yamazaki, S. ; Sato, K.

Author_Institution

Naka Fusion Res. Establ., JAERI, Ibaraki, Japan

fYear

1991

fDate

30 Sep-3 Oct 1991

Firstpage

588

Abstract

The movable cotter driven by hydraulic pressure has been proposed for the blanket locking system as a reference approach and it has been demonstrated that the flexible tube formed by superplasticity is sufficiently applicable to the driving mechanism for locking and unlocking the blanket modules. It was found that the superplastic material (Ti-Al alloy) is appropriate for this thin tube fabrication. A forming procedure has been established for the multilayered flexible tubes for providing high reliability, greater than that of the single-layered flexible tubes. The design optimization to minimize the tube space under certain operating conditions has been established based on stress analysis with large deformation

Keywords

Tokamak devices; fusion reactor theory and design; blanket locking system; flexible tube; forming procedure; hydraulic pressure; movable cotter; stress analysis; superplastic material; superplasticity; thin tube fabrication; Fasteners; Fusion reactor design; Inductors; Pistons; Research and development; Shape; Space heating; Space technology; Tokamaks; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0132-3

Type

conf

DOI

10.1109/FUSION.1991.218852

Filename

218852