Sugiura, Toshihiko

写真a

Affiliation

Faculty of Science and Technology, Department of Mechanical Engineering / Graduate School of Science and Technology, School of Integrated Design Engineering (Yagami)

Position

Professor

Related Websites

External Links
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Career 【 Display / hide 】

  • 1991.04
    -
    1994.03

    （株）東芝重電技術研究所技術開発担当

  • 1994.04
    -
    1995.03

    Assistant Professor, Faculty of Science and Technology, Keio University

  • 1995.04
    -
    2001.03

    Associate Professor, Faculty of Science and Technology, Keio University

  • 2001.04
    -
    2007.03

    Associate Professor, Faculty of Science and Technology, Keio University

  • 2002.04
    -
    2003.03

    兼 理工学部教室幹事（機械工学科）

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Academic Background 【 Display / hide 】

  • 1985.03

    The University of Tokyo, Faculty of Engineering, 原子力工学科

    University, Graduated

  • 1985.04

    The University of Tokyo, Graduate School, Division of Engineering, 原子力工学専攻

    Graduate School, Other, Master's course

  • 1987.03

    The University of Tokyo, Graduate School, Division of Engineering, 原子力工学専攻

    Graduate School, Completed, Master's course

  • 1987.04

    The University of Tokyo, Graduate School, Division of Engineering, 原子力工学専攻

    Graduate School, Other, Doctoral course

  • 1989.07

    Cornell University, Graduate School, Mechanical＆Aerospace Engineering

    United States, Graduate School, Other, Doctoral course

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Academic Degrees 【 Display / hide 】

  • 工学, The University of Tokyo, 1991.03

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Research Areas 【 Display / hide 】

  • Informatics / Mechanics and mechatronics

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Research Keywords 【 Display / hide 】

  • oscillation, wave

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Research Themes 【 Display / hide 】

  • Nonlinear dynamics of microbubbles in ultrasound field, 

    2006
    -
    Present

  • Nonlinear oscillation of superconducting magnetic levitation system, 

    1994.04
    -
    Present

  • Nondestructive evaluation by ultrasonic waves, 

    1994.04
    -
    Present

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Books 【 Display / hide 】

  • Principles and Applications of Magnetic Levitation Tchnology - Magnetic Levitation Systems and Magnetic Bearings -

    一般社団法人　電気学会　磁気浮上技術調査専門委員会　編（第６章執筆者：小沼　弘幸，桑田　厳，坂本　茂，進士　忠彦，杉浦　壽彦，杉元　紘也，丸山　裕，森下　明平）, 科学情報出版株式会社, 2018.03

    Scope: 第６章　実機設計・製作のための解析と応用　6.2 非線形振動　pp.269-278

    　View Summary

    磁気支持系では、非接触で低減衰系のため、電磁力の非線形性の影響が現れやすく、線形の範囲では予測し得ない非線形振動挙動を示し得る。このことは、超電導磁気浮上実用化の際に、予期せぬ振動や騒音問題につながる可能性を示唆しており、安全設計上注意を要する。このような問題の予測、防止のためにも、磁気支持系では非線形の動力学的特性の評価が重要となる。高温超電導体による磁気支持系を例に、各種の非線形共振について紹介している。

  • A Systematization of Environment-conscious Magnetic Suspension Technology and Its Application

    竹本 真紹，杉浦 壽彦，大島 政英，小沼 弘幸, 電気学会, 2015.02

    Scope: 2.3 システムの安定・安全に関わる技術，pp. 25-35

  • Trend of Fusion Technology on Electric and Mechanical Systems for Magnetic Suspension Applications

    大崎 博之，滑川 徹，杉浦 壽彦, 電気学会, 2012.03

    Scope: 5. システムの安定運用と磁気浮上，pp.30-36

    　View Summary

    システムの安定運用と磁気浮上という視点から，磁気支持系の安定化のために設計上考慮すべき非線形共振現象について順に紹介した。

  • Trend of Fusion Technology on Electric and Mechanical Systems for Magnetic Suspension Applications

    大橋俊介，桑田厳，杉浦 壽彦, 電気学会, 2009.06

    Scope: 49-51

    　View Summary

    電気系システムと機械系システムが融合された磁気支持応用機器のなかで，特にピン止め力支持方式（内部を通過する磁場をピン止め（記憶）する高温超電導体と磁石との間に生じる電磁力による支持方式）の機器に発生する特徴的な非線形振動現象についての研究成果を紹介．

  • 磁気支持応用機器における開発現状とそのダイナミクス，電気学会技術報告，第1017号 (産業応用部門)

    HIROYUKI OSAKI, SUGIURA TOSHIHIKO, 電気学会, 2005.05

    Scope: 47-50

    　View Summary

    超電導バルク材を用いた磁気支持応用機器をモデル化した非線形磁気連鎖系に発生する特徴的な非線形振動現象についての研究成果を紹介．

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Papers 【 Display / hide 】

  • Nonlinear resonance characteristics in HTS pinning maglev systems based on multiscale method and experimental test

    Wang S., Li H., Wang L., Deng Z., Miao P., Sugiura T., Xu J.

    Mechanical Systems and Signal Processing 226 2025.03

    ISSN  08883270

    　View Summary

    High-temperature superconducting pinning maglev (HTSPM) systems offer efficient, low-energy solutions for transportation due to their stable levitation characteristics. However, the nonlinear hysteresis properties of the levitation forces, coupled with the lower inherent stiffness of the levitation system compared to wheel-rail contacts, tend to induce nonlinear low-frequency vibrations. These issues pose challenges to operational safety and ride smoothness, especially under external perturbations, which result in a broad spectrum of sensitive frequencies that enhance these vibrations. This paper integrates experimental measurement, theoretical derivation and numerical simulation to elucidate the system's resonance characteristics and the frequencies that may induce resonance. Initially, a mathematical model of the levitation force of HTSPM is developed based on experiments and simulations. The study then uses the multiscale method to explore the nonlinear behaviors of HTSPM under different perturbation conditions. Forced vibration experiments are conducted at various externally excited frequencies to identify the system's sensitive frequencies. The results show that the system responds at its natural frequency, double the natural frequency, and the sum of the natural and the excitation frequencies. Specific damping values that can suppress nonlinear vibrations are also disscussed. This study provides a theoretical foundation for dynamics investigations of HTSPM trains, considering the effects of nonlinear levitation forces.

  • Vibration Modal Analysis of Superconducting Levitation With LCR Shunt Damper

    Kimura K., Sugiura T.

    IEEE Transactions on Applied Superconductivity 34 ( 3 ) 1 - 4 2024.05

    ISSN  10518223

    　View Summary

    This study deals with the vibration suppression effect of an LCR parallel electromagnetic shunt damper on a superconducting magnetic levitation system. Superconducting magnetic levitation systems have the advantages of low energy loss due to friction because of the non-contact nature of the system and, furthermore, stable levitation without control. Therefore, it is expected to be applied to magnetically levitated trains and magnetic formation flights. On the other hand, the occurrence of resonance with large amplitude due to low attenuation can be a problem, so suppression of the amplitude is an important issue. We focused on the LCR electromagnetic shunt damper, which has the advantage of being non-contact, as a method of suppressing vibration. However, the coupling of the mechanical and electrical systems via a velocity term is essential for the parallel type, making conventional modal analysis inapplicable. Therefore, we used the impedance expression for the circuit equation of the subsystem. As a result, the velocity term coupling was eliminated, thereby allowing the application of conventional modal analysis. The analysis showed that the two natural frequencies depend on the excitation frequency, and based on this fact, the dependence of the frequency response of the system on the capacitance and the resistance was able to be determined by numerical analysis. Furthermore, the amplitude reduction effect predicted by this numerical analysis was confirmed experimentally. In summary, in this study, the vibration suppression of the superconducting magnetic levitation system by the LCR electromagnetic shunt damper was analyzed using vibration modal analysis and verified experimentally.

  • Effect of Gyroscopic Damper on Secondary Resonance of Superconducting Levitation

    Minato H., Sugiura T.

    IEEE Transactions on Applied Superconductivity 34 ( 3 ) 1 - 4 2024.05

    ISSN  10518223

    　View Summary

    This study aims to verify the effectiveness of a gyroscopic damper on the nonlinear resonances of a magnetic levitation system with superconductors at several resonance points. Magnetic levitation systems using high-temperature superconductors provide controlled and stable levitation, but because they are non-contact, they have low damping and are easily affected by external disturbances. In addition, the magnetic force of superconductivity tends to cause nonlinear vibrations, and reducing these vibrations is an important development issue from the perspective of structural safety in system adaptation. We focus on the use of gyroscopic damper as a passive vibration suppression method that takes advantage of the property of the superconducting magnetic levitation system to be stable without control. Our previous studies have shown that gyroscopic damper is effective for simultaneous vibration suppression in the translational and tilting directions by optimizing the setting parameters of the gyroscopic damper. The vibration suppression effect in primary resonance has also been theoretically and experimentally confirmed. In this study, in addition to a reduction of approximately 10% in both the translational and tilting directions with respect to the excitation frequency component of secondary resonance, it was confirmed that the amplitude of what appears to be a subharmonic component oscillating at 1/2 and 3/2 of the excitation frequency was reduced by almost 100%. Thus, it was demonstrated that the gyroscopic damper can suppress secondary resonance in addition to primary resonance.

  • Experimental Verification of the Suppression Effect of a Gyroscopic Damper on Nonlinear Resonance in a High-Temperature Superconducting Magnetic Levitation System

    Minato H., Fujita K., Sugiura T.

    IEEE Transactions on Applied Superconductivity (IEEE Transactions on Applied Superconductivity)  33 ( 5 )  2023.08

    ISSN  10518223

    　View Summary

    This paper presents experimental verification of the vibration suppression effect of a gyroscopic damper on a system supported elastically by a superconducting magnetic levitation system when subjected to vibration. While superconducting magnetic levitation systems are capable of uncontrolled and stable levitation, they are prone to multi-degree-of-freedom vibration and nonlinear vibration of the levitating body due to their low damping. In our previous study, we have numerically predicted that a gyroscopic damper, a passive vibration control method, may be effective in simultaneously suppressing translational and tilting vibrations by optimizing the design parameters. In this paper, this vibration suppression effect predicted was investigated through experiments. In the experiment, nonlinear vibration of the levitating body occurred, which may have been caused by the magnetic force of the superconductivity, but the motion coupling of the gyroscopic damper and the levitating body was found to reduce that vibration by 30% in the translational direction and by 40% in the tilting direction. The gyroscopic damper was thus demonstrated to be effective in simultaneously suppressing the translational and tilting vibration of the levitating body.

  • Fundamental Study of Elastic Wave Damping by Metamaterials with Local Resonant Structures in Electrical Systems

    Sato K., Nishida K., Sugiura T.

    International Conference on Metamaterials, Photonic Crystals and Plasmonics    1508 - 1509 2023

    　View Summary

    Conventional acoustic metamaterials for elastic waves are mainly based on mechanical systems with local resonant structures, but this study aims to reduce vibration by replacing the unit cell with a resonant structure of a coupled electrical-structural system. As a basic study, we confirmed the vibration-damping property of acoustic metamaterials including electrical systems by numerical simulation and further clarified the resonance characteristics of unit cells by experiment.

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Papers, etc., Registered in KOARA 【 Display / hide 】

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Reviews, Commentaries, etc. 【 Display / hide 】

  • Electromagnetic Techniques for Vibration Damping and Isolation

    Diez-Jimenez E., Sugiura T., Rizzo R., Gómez-García M.J., Fleming A.

    Shock and Vibration (Shock and Vibration)  2019 2019

    ISSN  10709622

  • 高温超電導磁気浮上系の非線形振動

    杉浦壽彦

    設計工学 (日本設計工学会)  41 ( 5 ) 249-253 2006.05

    Article, review, commentary, editorial, etc. (scientific journal), Single Work

    　View Summary

    高温超電導体の上で２点を磁気的に支持することにより浮上させた剛体棒に生じうる非線形振動についての理論解析，数値解析および実験の結果など，これまでの研究成果を紹介．

  • 電磁超音波探触子による超音波送受信過程の数値解析

    杉浦壽彦，丸山真一

    超音波TECHNO (日本工業出版)  13 ( 8 ) 38-43 2001.08

    Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media), Joint Work

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    電磁超音波探触子による超音波送受信過程のモデリング，定式化，数値解析結果とその考察，実験による検証など，一連の研究成果について解説．

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Presentations 【 Display / hide 】

  • Experimental Study on an Electromagnetic Shunt Damper Utilizing Internal Resonance in a Superconducting Levitation System

    田辺一世，杉浦壽彦

    関東学生会第５８回学生員卒業研究発表講演会 (千葉工業大学，千葉県習志野市) , 

    2019.03
    , 

    Oral presentation (general), 日本機械学会関東支部

    　View Summary

    超電導磁気浮上系に内部共振を利用した電磁シャントダンパを用いることで浮上磁石の振動振幅を低減できることを実験により確認した．

  • 音場下で複数気泡系に生じる形状モードの周波数依存性の実験的検討

    波多野悠太，岡田竹史，杉浦壽彦

    平成30年度第４回超音波分子診断治療研究会 (福岡大学医学部（福岡市）) , 

    2019.03
    , 

    Oral presentation (general), 日本超音波医学会

    　View Summary

    音場中の複数気泡系において，単一気泡の形状振動に似た振動現象を観測した．複数気泡系の等価的平衡半径と低次の各モードの励振周波数の関係を調べた結果，単一気泡の形状振動の理論とほぼ一致した．

  • 高温超伝導磁気支持系の非線形動力学現象

    杉浦壽彦

    高温超伝導バルク体の磁気的挙動に関する応用調査研究会 (芝浦工業大学（豊洲）) , 

    2019.03
    , 

    Oral presentation (invited, special), 低温工学・超電導学会

    　View Summary

    電力貯蔵用フライホイールやリニアドライブ搬送などへの応用が期待される高温超伝導磁気支持系において，その動力学特性の評価は応用機器の機械設計上重要な課題である．その動力学の特徴は，非接触支持による低減衰ゆえに，電磁力の非線形性に起因した非線形振動現象が発生しやすいことである．たとえば，共振ピークの低周波数側への傾斜，高調波や分調波の共振現象や，さらに電磁力による多自由度の非線形連成現象として，内部共振，オートパラメトリック励振，結合共振，モード局在化など，線形の範囲では予測し得ない複雑な挙動が生じやすい．高温超伝導磁気支持系では，この非線形振動の特性を把握したうえでの安全設計が必要である．

  • Nonlinear dynamics of superconducting levitation

    Toshihiko Sugiura

    The Asia-Pacific Symposium on Applied Electromagnetics and Mechanics (APSAEM 2018) (Yogyakarta, INDONESIA) , 

    2018.07
    , 

    Oral presentation (invited, special), DepartemTeknik Mesin dan Industri, Fakultas Teknik, Universitas Gadjah Mada

    　View Summary

    This presentation deals with research topics of nonlinear dynamics found in superconducting levitation.

  • Detection of second harmonic guided waves using electromagnetic acoustic transducers

    Kenji Kitamura, Kousuke Kanda and Toshihiko Sugiura

    45th Annual Review of Progress in Quantitative Nondestructive Evaluation (Burlington, VT, USA) , 

    2018.07
    , 

    Poster presentation, Center for NDE, Iowa State University, USA

    　View Summary

    電磁超音波探触子EMATから発生する２次の非線形ガイド波の実験と多重尺度法を用いた解析の比較を行い，定性的な一致を確認した．

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • Elucidation of self-tuning resonance phenomena in mechanical systems and their application to broadband energy harvesting

    2020.04
    -
    2023.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Principal investigator

  • Non-destructive Evaluation of Wire-ropes by Using Guided Waves

    2017.04
    -
    2020.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Principal investigator

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Awards 【 Display / hide 】

  • JSAEM Best Technical Contribution Award

    Katsuhiko KIMURA (Hitachi, Ltd.), Hidenao SAITO (Hitachi-LG Data Storage), Toshihiko SUGIURA (Keio University), 2016.11, the Japan Society of Applied Electromagnetics and Mechanics, Reduction in Rolling Tilt of Objective Lens Actuators for Optical Disc Drives

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 学術奨励賞

    神田昂亮（慶應義塾大学大学院），杉浦壽彦（慶應義塾大学）, 2016.06, 一般社団法人 日本非破壊検査協会, 曲がった円柱状構造物を伝播するガイド波の群速度

    Type of Award： Award from Japanese society, conference, symposium, etc.

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Other 【 Display / hide 】

  • 2015年07月

    　View Details

    加藤祐二，神田昂亮，青木史子，小野寺信吾，杉浦壽彦，「超音波による非破壊評価」． 第7回非破壊評価総合展における学術発表ブースにて，非破壊検査協会関連の大学での研究の一つとして，研究室で取組む超音波による非破壊評価全般の紹介をポスター発表形式で行った．

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Courses Taught 【 Display / hide 】

  • SPECIAL LECTURE SERIES ON MULTIDISCIPLINARY AND DESIGN SCIENCE

    2024

  • PROJECT LABORATORY IN MECHANICAL ENGINEERING

    2024

  • MECHANICAL VIBRATIONS

    2024

  • INDEPENDENT STUDY ON INTEGRATED DESIGN ENGINEERING

    2024

  • GRADUATE RESEARCH ON INTEGRATED DESIGN ENGINEERING 2

    2024

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Memberships in Academic Societies 【 Display / hide 】

  • 国際先進メンテナンス技術センター, 

    2013
    -
    Present

  • 日本混相流学会, 

    2012
    -
    Present

  • IEEE, 

    2009
    -
    Present

  • 日本保全学会, 

    2005
    -
    Present

  • 日本非破壊検査協会, 

    2003
    -
    Present

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Committee Experiences 【 Display / hide 】

  • 2018.04
    -
    Present

    委員, 日本保全学会　AI保全学の可能性に関する検討会

  • 2018
    -
    Present

    委員, 日本機械学会 磁気軸受のダイナミクスと制御研究会

  • 2017.11
    -
    Present

    委員, 電気学会　磁気浮上・磁気支持に関するICT応用技術調査専門委員会

  • 2017.04
    -
    2019.03

    事業企画委員会委員, 日本機械学会関東支部

  • 2016.06
    -
    2018.05

    委員, 日本非破壊検査協会　非線形現象を利用した非破壊計測技術に関する研究会

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