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Multiscale structural analysis considering a slip and contact element for a superconducting magnet in a fusion reactor

Research Project

Project/Area Number 16K06943
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionNational Institute for Fusion Science

Principal Investigator

Tamura Hitoshi  核融合科学研究所, ヘリカル研究部, 准教授 (20236756)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsマルチスケール / 超伝導マグネット / 有限要素法 / ヘリカル型核融合炉 / 健全性評価 / 応力ひずみ / 超伝導 / マグネット / 構造設計 / 核融合炉 / 構造解析 / すべり / 接触 / 応力 / プラズマ・核融合 / 解析・評価 / 設計工学
Outline of Final Research Achievements

A strong electromagnetic force acts on the superconducting magnet for a fusion reactor. The superconducting coil is supported by a thick structure which is designed to have enough rigidity. However, even if the overall stress in the support structure is below the allowable level, there is a possibility that a local load acts on the superconducting conductor or the insulator in the coil. We applied multi-scale analysis considering slip and contact to superconducting magnets for fusion reactors by carrying out a series of multi-scale analyses such as homogenization analysis, overall analysis, and localization analysis, which were effective for optimization of the fusion reactor structure. In addition, it was shown that systematic evaluation of the integrity of the superconducting magnet system in the fusion reactor with different structural parameters can be performed systematically by the analytic procedure conducted in this research.

Academic Significance and Societal Importance of the Research Achievements

これまで核融合炉の構造健全性評価は、構造材料や超伝導素線等個々の要素研究と構造全体の設計研究がそれぞれ独自の評価方法で行われ、それぞれの最も厳しい条件等を互いにやりとりして進められてきた。本研究で提案するマルチスケール解析を拡張した手法は、核融合炉構造物の機械的挙動を超伝導素線レベルの挙動から全体構造の健全性までを一貫して行うものであり、現在及び今後進められる核融合炉用超伝導マグネットシステムを最適化していく上で、スピードアップと装置の信頼性を高めるという観点から非常に有用である。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (15 results)

All 2020 2019 2018 2017 2016

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results)

  • [Journal Article] Mechanical Design Concept of Superconducting Magnet System for Helical Fusion Reactor2019

    • Author(s)
      H. Tamura, N. Yanagi, T. Goto, J. Miyazawa, T. Tanaka, A. Sagara, S. Ito, H. Hashizume
    • Journal Title

      Fusion Science and Technology

      Volume: in press Issue: 5 Pages: 384-390

    • DOI

      10.1080/15361055.2019.1603041

    • NAID

      120007177004

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of coil configuration parameters on the mechanical behavior of the superconducting magnet system in the helical fusion reactor FFHR2019

    • Author(s)
      H. Tamura, T. Goto, N. Yanagi, J. Miyazawa, T. Tanaka, A. Sagara, S. Ito, H. Hashizume
    • Journal Title

      Fusion Engineering and Design

      Volume: in press Pages: 586-589

    • DOI

      10.1016/j.fusengdes.2019.01.029

    • NAID

      120007177007

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Design modification of structural components for the helical fusion reactor FFHR-d1 with challenging options2017

    • Author(s)
      Hitoshi Tamura, Nagato Yanagi, Takuya Goto, Junichi Miyazawa, Teruya Tanaka, Akio Sagara, Satoshi Ito, Hidetoshi Hashizume
    • Journal Title

      Fusion Engineering and Design

      Volume: 124 Pages: 605-609

    • DOI

      10.1016/j.fusengdes.2017.03.031

    • NAID

      120007177010

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Topology optimization for superconducting magnet system in LHD-type helical fusion reactor FFHR-c12020

    • Author(s)
      H. Tamura, T. Goto, J. Miyazawa, T. Tanaka and N Yanagi
    • Organizer
      ACASC/Asian ICMC/CSSJ Joint conference, 1/6-9, Ginowan, Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Topology optimization for superconducting magnet system in helical fusion reactor2019

    • Author(s)
      H. Tamura, T. Goto, J. Miyazawa, T. Tanaka and N Yanagi
    • Organizer
      14th European Conference on Applied Superconductivity (EUCAS2019), 9/1-5, Glasgow,UK
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Topology optimization study for magnet support in helical fusion reactor2019

    • Author(s)
      H. Tamura, T. Goto, J. Miyazawa, T. Tanaka and N Yanagi
    • Organizer
      28th International Toki Conference (ITC28), 11/5-8, Toki, Japan
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] トポロジー最適化によるヘリカル型核融合炉用超伝導マグネットシステムの最適化設計2019

    • Author(s)
      田村 仁,後藤拓也,宮澤順一,田中照也,柳 長門
    • Organizer
      プラズマ核融合学会, 11/29-12/2, 中部大学
    • Related Report
      2019 Annual Research Report
  • [Presentation] Nonlinear Structural Analysis of a Superconducting Coil and Support Structure for the Helical Fusion Reactor with Multiscale Element2018

    • Author(s)
      H. Tamura, T. Goto, N. Yanagi, J. Miyazawa, T. Tanaka, A. Sagara, S. Ito, and H. Hashizume
    • Organizer
      4th HTS4Fusion Conductor Workshop, Nagoya, Japan, Mar 21-23
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of coil configuration parameters on the mechanical behavior of the superconducting magnet system in the helical fusion reactor FFHR2018

    • Author(s)
      H. Tamura, T. Goto, N. Yanagi, J. Miyazawa, T. Tanaka, A. Sagara, S. Ito, and H. Hashizume
    • Organizer
      30th Symposium on Fusion Technology, Giardini Naxos, Sicily, Italy, Sep 16-21
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mechanical design conception of a superconducting magnet system for a helical fusion reactor2018

    • Author(s)
      H. Tamura, N. Yanagi, T. Goto, J. Miyazawa, T. Tanaka, A. Sagara, S. Ito, and H. Hashizume
    • Organizer
      The Technology of Fusion Energy, Orlando, FL, USA, Nov 11-15
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ヘリカル型核融合炉FFHRにおける超伝導マグネットシステムの機械的挙動に与えるコイル構成パラメータの影響2018

    • Author(s)
      田村 仁, 後藤拓也, 柳 長門, 宮澤順一, 田中照也, 相良明男, 伊藤 悟, 橋爪秀利
    • Organizer
      第12回核融合エネルギー連合講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Nonlinear multiscale structural analysis of a superconducting coil and support structure for the helical fusion reactor2017

    • Author(s)
      H. Tamura, T. Goto, J. Miyazawa, T. Tanaka, N. Yanagi, A. Sagara, S. Ito, and H. Hashizume
    • Organizer
      25th International Conference on Magnet Technology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヘリカル型核融合炉FFHR-c1のマグネット支持構造物の非線形構造解析2017

    • Author(s)
      田村 仁, 柳 長門, 宮澤 順一, 後藤 拓也, 田中 照也, 相良 明男
    • Organizer
      2017年度秋季超電導・低温学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Design optimization of structural components for the helical fusion reactor FFHR-d1 with challenging options2016

    • Author(s)
      Hitoshi Tamura, Nagato Yanagi, Takuya Goto, Junichi Miyazawa, Teruya Tanaka, Akio Sagara, Satoshi Ito, Hidetoshi Hashizume
    • Organizer
      29th edition of the Symposium on Fusion Technology (SOFT 2016)
    • Place of Presentation
      Prague Congress Centre, Prague, Czech Republic
    • Year and Date
      2016-09-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] FFHR-d1 challenging option へ向けた構造最適化2016

    • Author(s)
      田村 仁, 柳 長門, 宮澤 順一, 後藤 拓也, 田中 照也, 相良 明男
    • Organizer
      第11回核融合エネルギー連合講演会
    • Place of Presentation
      九州大学, 福岡市
    • Year and Date
      2016-07-14
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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