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Experimental study on the effect of higher dimensionality to energy localization

Research Project

Project/Area Number 17K05577
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionSetsunan University (2021)
Osaka University (2017-2020)

Principal Investigator

Watanabe Yosuke  摂南大学, 理工学部, 准教授 (30304033)

Co-Investigator(Kenkyū-buntansha) 土井 祐介  大阪大学, 工学研究科, 准教授 (10403172)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords)非線形局在振動 / エネルギー局在 / 周期構造 / 離散系 / 非線形格子 / 非線形局在振動
Outline of Final Research Achievements

Nonlinear localized oscillations excited and propagated in a mass-spring chain are experimentally studied. In our previous studies, mobile type of nonlinear localized oscillations have been excited by making mechanical experiments using a mass-spring chain which emulates the Fermi-Pasta-Ulam (FPU) one of beta type. In this study, to consider the on-site effects on the propagation, we have attached linear springs to the weights in the chain. One end of the linear spring is attached at the bottom of the weight and the other is fixed vertically downward. It is found that the speed of propagation of localized oscillations is changed depend on the strength of the effects.

Academic Significance and Societal Importance of the Research Achievements

周期系の高次元化がILMの存在やILMの伝播特性に対してどのような影響を与えるのかについては、ILM研究者らの中でも明確な答えが出されていない。FPU-β系はシンプルかつ非線形力学研究の世界では最もよく知られた数理モデルの一つであり、コンピュータの発展とともに世界中のたくさんの研究者達が方程式およびその解の挙動を調べ、これまでに膨大な量の研究結果が蓄積されている。系のシンプルさ故、実験データが得られれば、解析・数値計算結果との比較は極めて容易である。 本実験で得られるILMの精密な振動・伝播特性データは理論的研究と実験的研究の“橋渡し”として当研究分野に大きく貢献をすることができる。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (21 results)

All 2021 2020 2019 2018 2017 Other

All Journal Article (6 results) (of which Open Access: 1 results,  Peer Reviewed: 4 results) Presentation (14 results) (of which Int'l Joint Research: 7 results,  Invited: 4 results) Remarks (1 results)

  • [Journal Article] On-site effect on propagation of nonlinear localized oscillations in a mass-spring chain2021

    • Author(s)
      Yosuke Watanabe
    • Journal Title

      Abstract booklet LCM 2021 (Localisation in Condensed Matter)

      Volume: - Pages: 9-9

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Two-dimensional Intrinsic Localized Mode Solutions in Hexagonal Fermi-Pasta-Ulam Lattice2021

    • Author(s)
      Yosuke Watanabe and Shun Izumi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 90 Issue: 1 Pages: 014003-014003

    • DOI

      10.7566/jpsj.90.014003

    • NAID

      40022453908

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Experimental Observation of Supratransmission in a Mass-spring Chain with Suppression Effect of Reflection2020

    • Author(s)
      Yosuke Watanabe and Masayuki Kimura
    • Journal Title

      Proceedings of NOLTA 2020

      Volume: 1 Pages: 186-187

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Observation of propagation of nonlinear localized oscillations in a mass-spring chain with excitation and attenuation ends2020

    • Author(s)
      Yosuke Watanabe
    • Journal Title

      CHAOS 2020 Book of Abstracts

      Volume: 1 Pages: 149-149

    • Related Report
      2020 Research-status Report
  • [Journal Article] Intrinsic Localized Modes in Two-Dimensional Hexagonal Fermi-Pasta-Ulam Lattice2019

    • Author(s)
      Yosuke Watanabe, Shun Izumi, Susumu Goto
    • Journal Title

      Proceedings of NOLTA 2019

      Volume: - Pages: 452-452

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Experimental demonstration of excitation and propagation of intrinsic localized modes in a mass-spring chain2018

    • Author(s)
      Yosuke Watanabe, Takunobu Nishida, Yusuke Doi, Nobumasa Sugimoto
    • Journal Title

      Physics Letters A

      Volume: 382 Issue: 30 Pages: 1957-1961

    • DOI

      10.1016/j.physleta.2018.04.055

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] On-site effect on propagation of nonlinear localized oscillations in a mass-spring chain2021

    • Author(s)
      Yosuke Watanabe
    • Organizer
      LCM 2021 (Localisation in Condensed Matter)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] オンサイト効果が質点バネ系を伝播する局在振動に及ぼす影響2021

    • Author(s)
      渡邉陽介
    • Organizer
      日本機械学会 2021年度年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Observation of propagation of nonlinear localized oscillations in a mass-spring chain with excitation and attenuation ends2020

    • Author(s)
      Yosuke Watanabe
    • Organizer
      The 13th CHAOS 2020 International Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 質点バネ系を移動する非線形局在振動の励起と速度に関する実験的考察2020

    • Author(s)
      渡邉陽介
    • Organizer
      日本機械学会 2020年度年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Experimental Observation of Supratransmission in a Mass-spring Chain with Suppression Effect of Reflection2020

    • Author(s)
      Yosuke Watanabe and Masayuki Kimura
    • Organizer
      2020 International Symposium on Nonlinear Theory and its Applications
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 連成振動子列における非線形局在振動の伝播特性2020

    • Author(s)
      渡邉陽介
    • Organizer
      日本物理学会 第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Intrinsic Localized Modes in Two-Dimensional Hexagonal Fermi-Pasta-Ulam Lattice2019

    • Author(s)
      Yosuke Watanabe, Shun Izumi, Susumu Goto
    • Organizer
      2019 International Symposium on Nonlinear Theory and its Applications
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Observation of excited modes in a mechanical coupled oscillator array2019

    • Author(s)
      Yosuke Watanabe, Yusuke Doi
    • Organizer
      JSLoc 2019: Japanese-Spanish Symposium on Energy Localization in Nonlinear Lattices
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Fermi-Pasta-Ulamポテンシャルをもつ2次元六方格子における局在振動モードの数値解析2019

    • Author(s)
      渡邉陽介, 泉竣, 後藤晋
    • Organizer
      日本機械学会 2019年度年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Observation of excited modes in mechanical coupled oscillator array2019

    • Author(s)
      Yosuke Watanabe
    • Organizer
      Workshop on Localized Nonlinear Waves
    • Related Report
      2019 Research-status Report
  • [Presentation] Experimental study on interaction of mobile localized oscillation with onsite potentials in a mass-spring chain2018

    • Author(s)
      Yosuke Watanabe, Shun Izumi
    • Organizer
      The International Conference on Nonlinear Localization in Lattices
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Investigation of Spatially Localized Oscillations in the Two-dimensional Hexagonal Lattice of Fermi-Pasta-Ulam beta Type2018

    • Author(s)
      Shun Izumi, Yosuke Watanabe
    • Organizer
      International Symposium on Intrinsic Localized Modes 30th Anniversary of Discovery
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] オンサイトポテンシャルのILM伝播に及ぼす影響2017

    • Author(s)
      泉竣、渡邉陽介
    • Organizer
      豊田理化学研究所特定課題研究「非線形エネルギー輸送による新しい物性理論の探求」第6回研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 高次元格子ILMの研究に向けて2017

    • Author(s)
      泉竣、渡邉陽介
    • Organizer
      豊田理化学研究所特定課題研究「非線形エネルギー輸送による新しい物性理論の探求」第5回研究会
    • Related Report
      2017 Research-status Report
  • [Remarks] 大阪大学 基礎工学研究科 機能創成専攻 非線形力学領域 流体力学グループ 渡邉陽介

    • URL

      http://fm.me.es.osaka-u.ac.jp/watanabe/

    • Related Report
      2019 Research-status Report 2018 Research-status Report

URL: 

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

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