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Pioneering research of magnetic levitation focused on the states and properties of components

Research Project

Project/Area Number 17H03213
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionUniversity of Toyama

Principal Investigator

Ohji Takahisa  富山大学, 学術研究部工学系, 教授 (30334709)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords磁気浮上 / 磁気支持 / 磁性流体 / 態 / 性状 / 車上一次式 / 磁気浮上技術 / 対向面性状・形状 / 磁気機能性流体 / 多関節 / 対向面形状 / 表面性状 / 電気機器
Outline of Final Research Achievements

This research subject includes two topics: A maglev system using magnetic fluid (MF) as a levitated object and a maglev vehicle that can respond to changes in the shapes and properties of the opposing surface. In the former, we established a levitation procedure for a placed MF droplet. Also, we derived the relationship between the levitated droplet's volume, viscosity, deformation state, and the magnetic force equation. Moreover, we have shown that a positioning-controlled MF cone can be manipulated vertically or horizontally and reciprocated at high speed. In the latter, we fabricated a device that can handle various opposing surfaces. It was demonstrated that the device could float stably under flat plates, cylinders, and straight and curved rails. In addition, we proposed a method to remove the influence of non-uniform conductivity and magnetism on the opposing surface. As a result, our device successfully passed through the non-uniform area while keeping contactless levitation.

Academic Significance and Societal Importance of the Research Achievements

磁性流体1滴を大気中かつ室温下で簡便に繰り返し浮上始動,安定浮上できる本研究は,解析予想に基づく磁性流体液滴の変形現象を実験的に捉える一手段として提示でき学術的意義が高い。一方,固体を浮上対象として発展を遂げてきた磁気浮上技術に対し,磁性液体や半固体まで浮上対象に拡張したことで,磁気機能性流体による磁気支持方式の三次元光造形技術への産業利用の可能性を拓いた。車上一次式システム研究では,対向吸引面形状や性状にかかる制約(形状既定,性状一定)を一部取り払えることが実証された。本成果により,多様な吸引面を自由に滑走する拡張性の高い磁気浮上システム研究の進展が期待される。

Report

(5 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (17 results)

All 2022 2021 2020 2019 2018

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (13 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 磁気浮上リニアモータ・平面モータ2021

    • Author(s)
      大橋俊介,栗田伸幸,大路貴久,柿木稔男,森下明平
    • Journal Title

      電気学会全国大会講演論文集(CD-ROM) (Annual Meeting Record, I.E.E. Japan (CD-ROM))

      Volume: 2021

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 磁気浮上・磁気支持と磁性流体2021

    • Author(s)
      大路貴久,二村宗男,丸山裕
    • Journal Title

      電気学会全国大会講演論文集(CD-ROM) (Annual Meeting Record, I.E.E. Japan (CD-ROM))

      Volume: 2021

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Actively controlled magneticlevitation of a ferrofluid droplet in mid-airusing a bar-shaped electromagnet2020

    • Author(s)
      YAMAGUCHI Soichiro、OHJI Takahisa、AMEI Kenji、KIYOTA Kyohei
    • Journal Title

      Journal of the Japan Society of Applied Electromagnetics and Mechanics

      Volume: 28 Issue: 3 Pages: 239-244

    • DOI

      10.14243/jsaem.28.239

    • NAID

      130007981066

    • ISSN
      0919-4452, 2187-9257
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnetic levitation of a ferrofluid droplet in mid-air2020

    • Author(s)
      Ohji Takahisa、Yamaguchi Soichiro、Amei Kenji、Kiyota Kyohei
    • Journal Title

      AIP Advances

      Volume: 10 Issue: 1

    • DOI

      10.1063/1.5129611

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 車上一次式磁気浮上装置における不均一性状レールへの対応方法の検討2022

    • Author(s)
      石原直樹,松野恭尚,大路貴久,飴井賢治
    • Organizer
      第34回「電磁力関連のダイナミクス」シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 車上一次式磁気浮上装置での対向面不均一性状部の通過実験2021

    • Author(s)
      石原直樹,大路貴久,飴井賢治
    • Organizer
      2021年電気学会産業応用部門大会(JIASC21)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 磁気支持された磁性流体液錐の頂点角度・定常電流評価2021

    • Author(s)
      北守祐貴,柴田将聡,大路貴久,飴井賢治
    • Organizer
      2021年度電気・情報関係学会北陸支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 導電性不均一信号の除去ブロックを用いた車上一次式磁気浮上装置の浮上移動実験2021

    • Author(s)
      松野恭尚,石原直樹,大路貴久,飴井賢治
    • Organizer
      2021年度電気・情報関係学会北陸支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 磁性流体液滴に対する磁気浮上実験 -粘性と形状評価-2021

    • Author(s)
      柴田将聡,北守祐貴,大路貴久,飴井賢治
    • Organizer
      2021年度電気・情報関係学会北陸支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 車上一次式磁気浮上装置による導電性不均一レール下での移動実験2020

    • Author(s)
      松野恭尚,大路貴久,飴井賢治
    • Organizer
      2020年度電気・情報関係学会北陸支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 吸引面形状に対応可能な車上一次式磁気浮上装置の提案と浮上実験2019

    • Author(s)
      岡崎哲也,大路貴久,飴井賢治,清田恭平
    • Organizer
      第31回「電磁力関連のダイナミクス」シンポジウム
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] 磁性流体に対する位置決め制御と液滴磁気浮上の試み2019

    • Author(s)
      山口宗一朗,大路貴久,飴井賢治,清田恭平
    • Organizer
      第31回「電磁力関連のダイナミクス」シンポジウム
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Presentation] 棒状電磁石を用いた大気中での磁性流体液滴の能動磁気浮上2019

    • Author(s)
      山口宗一朗,大路貴久,飴井賢治,清田恭平
    • Organizer
      第28回MAGDA コンファレンス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Magnetic Levitation of a Ferrofluid Droplet in Mid-Air2019

    • Author(s)
      Takahisa Ohji , Soichiro Yamaguchi , Kenji Amei , Kyohei Kiyota
    • Organizer
      The 64th Annual Conference on Magnetism and Magnetic Materials
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 磁性流体の円錐状態での位置決め制御と液滴磁気浮上実験2019

    • Author(s)
      山口宗一朗,大路貴久,飴井賢治,清田恭平
    • Organizer
      平成31年電気学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 磁気機能性流体磁気浮上のための基礎的検討2018

    • Author(s)
      山口宗一朗,大路貴久,飴井賢治,清田恭平
    • Organizer
      平成30年度電気関係学会北陸支部連合大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 吸引面形状に対応可能な車上一次式磁気浮上装置の提案2018

    • Author(s)
      岡崎哲也,大路貴久,飴井賢治,清田恭平
    • Organizer
      平成30年度電気関係学会北陸支部連合大会
    • Related Report
      2018 Annual Research Report

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Published: 2017-04-28   Modified: 2023-01-30  

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