Multiscale Stress Analysis and 3D Fitting Structure of Superconducting Coils for the Helical Fusion Reactor

Hitoshi Tamura; Nagato Yanagi; Kazuya Takahata; Akio Sagara; Satoshi Ito; Hidetoshi Hashizume

doi:10.1109/TASC.2016.2531008

Multiscale Stress Analysis and 3D Fitting Structure of Superconducting Coils for the Helical Fusion Reactor

Hitoshi Tamura, Nagato Yanagi, Kazuya Takahata, Akio Sagara, Satoshi Ito, Hidetoshi Hashizume

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Conceptual design studies for the Large-Helical-Device-type helical reactor, i.e., FFHR-d1, are being conducted in the National Institute for Fusion Science. Three different cooling schemes and conductor types have been proposed for the superconducting magnet system. A multiscale structural analysis is used to assess the mechanical characteristics of the magnet structure, taking into account the types of cooling schemes and superconductors. Multiscale analysis evaluates both the stress distribution in the coil support structure and local stress in the constituents of the superconductors without rebuilding a finite-element model of the support structure. Concerning a segmented fabrication of the helical coils using a higherature superconductor, the feasibility of segment installation is confirmed using a three-dimensional printing model, which identifies the maximum segment length and the necessary gap in the coil casing to install a segment.

Original language	English
Article number	7409964
Journal	IEEE Transactions on Applied Superconductivity
Volume	26
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2016.2531008
Publication status	Published - 2016 Apr

Keywords

Additive manufacturing
fusion reactor design
helical fusion reactor
multi-scale analysis
superconducting magnets

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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AU - Sagara, Akio

AU - Ito, Satoshi

AU - Hashizume, Hidetoshi

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