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Development of a passive rate-independent linear damping device effective in displacement control of seismic isolated builings

Research Project

Project/Area Number 18H01577
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 23010:Building structures and materials-related
Research InstitutionTohoku University

Principal Investigator

IKAGO Kohju  東北大学, 災害科学国際研究所, 教授 (20521983)

Co-Investigator(Kenkyū-buntansha) 薛 松濤  東北工業大学, 建築学部, 教授 (70236107)
堀 則男  東北工業大学, 建築学部, 教授 (60292249)
菅野 秀人  秋田県立大学, システム科学技術学部, 教授 (20336449)
池永 昌容  関西大学, 環境都市工学部, 准教授 (50552402)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Keywords複素減衰 / Maxwellモデル / Biotモデル / 長周期地震動 / 長周期構造物 / 変位制御設計 / 免震構造 / 制振構造 / 一般化マクスウェルモデル / 因果的フィルター / 負剛性 / レオロジー / 非整数階微積分 / Scott-Blairモデル / パッシブダンパー / マクスウェル要素 / パッシブ制御 / 振動台実験 / マクスウェルモデル / 負剛性要素
Outline of Final Research Achievements

A passive control system that mimics the performance of rate-independent linear damping (RILD) to achieve simultaneous reduction of floor response acceleration and excessive deformation that may be caused by long-period ground motion is developed. Theoretical and experimental study confirmed that a combination of a Maxwell element and a negative stiffness can accurately approximate RILD. In addition, it is found that a combination of the Scott-Blair model, a series connection of a fractional derivative damping model and a spring, and a negative stiffness element in parallel arrangement improve the accuracy of the approximation.
Further, the proposed fractional-order derivative model is found to be a model that can unify the three previously proposed causal models for RILD, developing a unifying theory of causal approximation for RILD.

Academic Significance and Societal Importance of the Research Achievements

本研究課題では,近年解決すべき社会的課題の一つとなっている長周期長時間地震動によって生じる超高層建物や免震構造物のような長周期構造物の振動制御に有効な複素減衰の実デバイスとしての実装を検討した.
複素減衰が長周期構造物の床応答加速度などを増大させずに同時に過大変形を抑制することに有効であることは理論的に示されていたが,これを物理的にかつパッシブ機構として実装する方法は見出されていなかった.本研究は,非因果性を有する複素減衰について,その利点を損なわずに因果的に精度良く近似する効果的な方法を提案し,上記の社会的課題解決の端緒を開いたことに意義がある.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (36 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (4 results) Journal Article (11 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (21 results) (of which Int'l Joint Research: 5 results)

  • [Int'l Joint Research] フロリダ大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 同済大学(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Maryland(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 同済大学(中国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Unifying causal model of rate‐independent linear damping for effectively reducing seismic response in low‐frequency structures2021

    • Author(s)
      Luo Hao、Ikago Kohju
    • Journal Title

      Earthquake Engineering & Structural Dynamics

      Volume: - Issue: 9 Pages: 1-24

    • DOI

      10.1002/eqe.3450

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rate-Independent Linear Damping for the Improved Seismic Performance of Inter-Story Isolated Structures2020

    • Author(s)
      Keivan Ashkan、Zhang Ruiyang、Keivan Darioush、Phillips Brian M.、Ikenaga Masahiro、Ikago Kohju
    • Journal Title

      Journal of Earthquake Engineering

      Volume: 0 Issue: 2 Pages: 1-24

    • DOI

      10.1080/13632469.2019.1693444

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Damping enhancement principle of inerter system2020

    • Author(s)
      Zhang Ruifu、Zhao Zhipeng、Pan Chao、Ikago Kohju、Xue Songtao
    • Journal Title

      Structural Control and Health Monitoring

      Volume: 27 Issue: 5 Pages: 1-21

    • DOI

      10.1002/stc.2523

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation2019

    • Author(s)
      Xie, Liyu; Ban, Xinlei; 薛松濤; 五十子幸樹; Kang, Jianfei; Tang, Hesheng
    • Journal Title

      Applied Sciences-Basel

      Volume: 9(19) Issue: 19 Pages: 1-17

    • DOI

      10.3390/app9194096

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Experimental characterization and performance improvement evaluation of an electromagnetic transducer utilizing a tuned inerter2019

    • Author(s)
      Sugiura Keita、Watanabe Yuta、Asai Takehiko、Araki Yoshikazu、Ikago Kohju
    • Journal Title

      Journal of Vibration and Control

      Volume: 26 Issue: 1-2 Pages: 56-72

    • DOI

      10.1177/1077546319876396

    • NAID

      120007127854

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Performance of low-frequency structures incorporated with rate-independent linear damping2019

    • Author(s)
      Luo H.、Ikago K.、Chong C.、Keivan A.、Phillips B.M.
    • Journal Title

      Engineering Structures

      Volume: 181 Pages: 324-335

    • DOI

      10.1016/j.engstruct.2018.12.022

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adaptive causal realization of rate-independent linear damping2018

    • Author(s)
      Keivan Ashkan、Phillips Brian M.、Ikago Kohju
    • Journal Title

      Engineering Structures

      Volume: 167 Pages: 256-271

    • DOI

      10.1016/j.engstruct.2018.04.019

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] ADAPTIVE APPROXIMATION OF RATE-INDEPENDENT LINEAR DAMPING FOR LOW-FREQUENCY STRUCTURES2018

    • Author(s)
      Brian Phillips, Ashkan Keivan, Kohju Ikago
    • Journal Title

      Proceedings of the 11th National Conference on Earthquake Engineering

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] PASSIVE IMPLEMENTATION OF RATEINDEPENDENT LINEAR DAMPING USING A NEGATIVE STIFFNESS ELEMENT2018

    • Author(s)
      H. Luo, C. Chong, K. Ikago, A. Keivan, B.M. Phillips
    • Journal Title

      Proceedings of the 11th National Conference on Earthquake

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Feasibility study of passive energy dissipation devices for the seismic protection of low-frequency structures2018

    • Author(s)
      H. Luo, C. Chong, H. Higano, K. Ikago, N. Inoue
    • Journal Title

      Proceedings of the 7th World Conference on Structural Control and Monitoring

      Volume: - Pages: 341-350

    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Seismic performance enhancement of a baseisolation structure by using a passive rateindependent damping model2018

    • Author(s)
      Hao Luo, Yoshimasa Hanzawa, Kohju Ikago
    • Journal Title

      Proceedings of The 7th Asia Conference on Earthquake Engineering

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Presentation] A generalized model of approximated rate-independent linear damping incorporated into base-isolated structure2020

    • Author(s)
      Hao Luo, Kohju Ikago
    • Organizer
      World Conference on Earthquake Engineering
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical implementation of a fractional-order filter for approximating rate-independent linear damping2020

    • Author(s)
      羅 浩,劉 威,五十子 幸樹
    • Organizer
      日本建築学会東北支部研究報告会
    • Related Report
      2020 Annual Research Report
  • [Presentation] An order reduction technique for nonlinear dynamic analysis of a structural system incorporated with rate-independent linear damping Part 1: Formulation of the technique2020

    • Author(s)
      羅 浩,劉 威,五十子 幸樹
    • Organizer
      日本建築学会東北支部研究報告会
    • Related Report
      2020 Annual Research Report
  • [Presentation] An order reduction technique for nonlinear dynamic analysis of a structural system incorporated with rate-independent linear damping Part 2: Numerical verification2020

    • Author(s)
      羅 浩,劉 威,五十子 幸樹
    • Organizer
      日本建築学会東北支部研究報告会
    • Related Report
      2020 Annual Research Report
  • [Presentation] A first-order approximation of Biot’s model to realize rate-independent linear damping Part1: A review of the state of the art2019

    • Author(s)
      五十子幸樹,羅浩,福田伊織,李大偉
    • Organizer
      日本建築学会東北支部研究報告会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A first-order approximation of Biot’s model to realize rate-independent linear damping Part2: Dynamic behavior of structures with different models2019

    • Author(s)
      羅;浩,福田伊織,李大偉,五十子幸樹
    • Organizer
      日本建築学会東北支部研究報告会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 減衰性能可変オイルダンパーによる免震構造物の地震時応答変位制御2019

    • Author(s)
      半澤吉将,倉重万梨乃,五十子幸樹
    • Organizer
      日本建築学会東北支部研究報告会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 減衰性能可変オイルダンパーによる免震構造物の地震時応答変位制御 その1 実物大部分試験体を用いた動的加振実験2019

    • Author(s)
      伊藤拓海,倉重万梨乃,五十子幸樹
    • Organizer
      日本建築学会大会(北陸)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 減衰性能可変オイルダンパーによる免震構造物の地震時応答変位制御 その2 性能可変オイルダンパーまたは既往セミアクティブダンパーを適用した設計比較2019

    • Author(s)
      倉重万梨乃,伊藤拓海,五十子幸樹
    • Organizer
      日本建築学会大会(北陸)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 液圧で駆動する歯車モータを利用した回転慣性質量ダンパーの開発 その5 可変質量効果を持つiHGD 試験体の概要2019

    • Author(s)
      木田英範,池永昌容,中南滋樹,五十子幸樹,井上範夫
    • Organizer
      日本建築学会大会(北陸)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 液圧で駆動する歯車モータを利用した回転慣性質量ダンパーの開発 その6 可変質量効果を持つiHGD 試験体の加振実験2019

    • Author(s)
      池永昌容,木田英範,中南滋樹,五十子幸樹,井上範夫
    • Organizer
      日本建築学会大会(北陸)
    • Related Report
      2019 Annual Research Report
  • [Presentation] A causal fractional-order filter to approximate the performance of rate-independent linear damping Part 1: The proposed model2019

    • Author(s)
      Hao LUO,福田伊織,半澤吉将,Dawei LI,五十子幸樹
    • Organizer
      日本建築学会大会(北陸)
    • Related Report
      2019 Annual Research Report
  • [Presentation] A causal fractional-order filter to approximate the performance of rate-independent linear damping Part 2: Impulsive response of structure systems with the proposed model2019

    • Author(s)
      半澤吉将,Hao LUO,福田伊織,Dawei LI,五十子幸樹
    • Organizer
      日本建築学会大会(北陸)
    • Related Report
      2019 Annual Research Report
  • [Presentation] ADAPTIVE APPROXIMATION OF RATE-INDEPENDENT LINEAR DAMPING FOR LOW-FREQUENCY STRUCTURES2018

    • Author(s)
      Brian Phillips, Ashkan Keivan, Kohju Ikago
    • Organizer
      The 11th National Conference on Earthquake Engineering
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PASSIVE IMPLEMENTATION OF RATEINDEPENDENT LINEAR DAMPING USING A NEGATIVE STIFFNESS ELEMENT2018

    • Author(s)
      H. Luo, C. Chong, K. Ikago, A. Keivan, B.M. Phillips
    • Organizer
      Proceedings of the 11th National Conference on Earthquake Engineering
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Feasibility study of passive energy dissipation devices for the seismic protection of low-frequency structures2018

    • Author(s)
      H. Luo, C. Chong, H. Higano, K. Ikago, N. Inoue
    • Organizer
      The 7th World Conference on Structural Control and Monitoring
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seismic performance enhancement of a baseisolation structure by using a passive rateindependent damping model2018

    • Author(s)
      Hao Luo, Yoshimasa Hanzawa, Kohju Ikago
    • Organizer
      The 7th Asia Conference on Earthquake Engineering, Bangkok, Thailand
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ダイナミック・マス-バネ-ダンパー直列システムによる複素剛性ダンパー模擬2018

    • Author(s)
      倉重万梨乃,日向野颯,五十子幸樹
    • Organizer
      日本建築学会東北支部研究報告集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 応答周期適応型低次因果的デジタルフィルタによる免震用複素剛性ダンパーの実現2018

    • Author(s)
      五十子幸樹,佐々木裕一
    • Organizer
      日本建築学会東北支部研究報告集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ダイナミック・マス-バネ-ダンパー直列システムによる複素剛性ダンパー模擬2018

    • Author(s)
      日向野颯,五十子幸樹
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 応答周期適応型低次因果的デジタルフィルタによる免震用複素剛性ダンパーの実現2018

    • Author(s)
      倉重万梨乃,佐々木裕一,五十子幸樹
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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