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Analysis on fluid-structure-acoustic interaction of vocal fold vibration and sound generation

Research Project

Project/Area Number 20K14648
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 19010:Fluid engineering-related
Research InstitutionOsaka University (2023)
Toyohashi University of Technology (2020-2022)

Principal Investigator

Yoshinaga Tsukasa  大阪大学, 大学院基礎工学研究科, 助教 (50824190)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords声帯 / 空力音 / 流体構造連成 / 自励振動 / 数値流体解析 / 発声 / 有限差分法 / 人工声帯 / 流体構造連成解析 / 2質点モデル / 剥離 / ベルヌーイの定理 / 声道 / 3音響管モデル / 埋め込み境界法 / リード / 空力音響学 / 乱流音 / 音声
Outline of Research at the Start

声帯による音の発生は,気流と声帯の弾性力による自励振動として起こっており,数値解析において気流と構造変化,音発生の相互作用まで十分な精度で解析できている手法はほとんどない.本研究では,声帯音の詳細な発生メカニズムを明らかにするため,気流による声帯の振動と音の発生を同時に解析できる,流体―構造―音響連成解析手法の構築を行う.この時,高精度の有限差分法と埋め込み境界法を用い,得られた結果は実験による比較・検証を行うことで,十分な精度で解析できていることを確認する.また,3次元実形状モデルを医療画像より構築し,声帯の粘弾性特性が声質に与える影響等を調べ,発声障害等の生体医工学分野への応用を目指す.

Outline of Final Research Achievements

In this research, we developed a high-order accuracy numerical analysis for voice production of vocal fold vibrations. We have shown that the proposed methodology can predict the voice quality with sufficient accuracy compared to experimental results, by using a high-order accuracy finite difference method for the airflow and sound generation and vocal fold modeling with a one-dimensional dynamic beam equation or lumped-mass models. Comparison with the conventional one-dimensional airflow model revealed to what extent the three-dimensional airflow and pressure distributions around the vocal folds affect the vocal fold vibration characteristics.

Academic Significance and Societal Importance of the Research Achievements

声帯から声が発せられる際には,気流と声帯の振動の連成だけでなく,気流から発生する音との連成も考慮する必要がある.本研究で構築した手法では,振動する声帯ひだから音が発生する現象だけでなく,発生した音が声帯振動に及ぼす現象までモデル化できており,工学的な応用先として,より音質の良い人工声帯の開発に活かせるだけでなく,将来的には声帯機能不全による発声障害の原因究明などにも活用できる.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (28 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (4 results) Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (17 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] University of California, Los Angeles(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of California, Los Angeles(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] University of California, Los Angeles(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] グルノーブル・アルプ大学 LEGI(フランス)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Effects of airflow in constricted vocal tracts on vowel production of the reed-type artificial vocal fold2022

    • Author(s)
      T. Yoshinaga, T. Arai, H. Yokoyama, A. Iida
    • Journal Title

      Acoustical Science and Technology

      Volume: 43 Issue: 5 Pages: 283-286

    • DOI

      10.1250/ast.43.283

    • ISSN
      0369-4232, 1346-3969, 1347-5177
    • Year and Date
      2022-09-01
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of one-dimensional and three-dimensional glottal flow models in left-right asymmetric vocal fold conditions2022

    • Author(s)
      Yoshinaga Tsukasa、Zhang Zhaoyan、Iida Akiyoshi
    • Journal Title

      The Journal of the Acoustical Society of America

      Volume: 152 Issue: 5 Pages: 2557-2569

    • DOI

      10.1121/10.0014949

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 円筒型声道を付したリード式人工声帯の流体-構造-音響連成シミュレーション2021

    • Author(s)
      吉永司,荒井隆行,Inaam Rafia, 横山博史,飯田明由
    • Journal Title

      ながれ

      Volume: 40 Pages: 226-233

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A fully coupled fluid-structure-acoustic interaction simulation on reed-type artificial vocal fold2021

    • Author(s)
      Yoshinaga, T., Arai, T., Inaam, R., Yokoyama, H., Iida, A.
    • Journal Title

      Applied Acoustics

      Volume: 184 Pages: 108339-108339

    • DOI

      10.1016/j.apacoust.2021.108339

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Global numerical simulation of fluid-structure-acoustic interaction in a single-reed instrument2021

    • Author(s)
      Yoshinaga Tsukasa、Yokoyama Hiroshi、Shoji Tetsuro、Miki Akira、Iida Akiyoshi
    • Journal Title

      The Journal of the Acoustical Society of America

      Volume: 149 Issue: 3 Pages: 1623-1632

    • DOI

      10.1121/10.0003757

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hysteresis of aeroacoustic sound generation in the articulation of [s]2020

    • Author(s)
      Yoshinaga Tsukasa、Nozaki Kazunori、Iida Akiyoshi
    • Journal Title

      Physics of Fluids

      Volume: 32 Issue: 10 Pages: 105114-105114

    • DOI

      10.1063/5.0020312

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Evaluation of the One-Dimensional Glottal Flow Model in Predicting Voice Outcomes of Left-Right Asymmetric Vocal Fold Vibrations2023

    • Author(s)
      Yoshinaga, T., Zhang, Z., Iida, A.
    • Organizer
      15th International Conference on Advances in Quantitative Laryngology, Voice, and Speech Research (AQL2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of the One-Dimensional Glottal Flow Model in Predicting Voice Outcomes of Left-Right Asymmetric Vocal Fold Vibrations2023

    • Author(s)
      Yoshinaga Tsukasa、Zhang Zhaoyan、Iida Akiyoshi
    • Organizer
      15th International Conference on Advances in Quantitative Laryngology, Voice and Speech Research (AQL2023)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 発音の空力音シミュレーションと指向性の可視化2023

    • Author(s)
      吉永 司,飯田 明由
    • Organizer
      日本音響学会2023年春季研究会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Comparison of one-dimensional and three-dimensional glottal flow models in left-right asymmetric vocal fold conditions2022

    • Author(s)
      Yoshinaga Tsukasa、Zhang Zhaoyan、Iida Akiyoshi
    • Organizer
      182th meeting of Acoustical Society of America
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 無声両唇破裂音/p/の発音を再現する口腔モデルの構築2022

    • Author(s)
      田平拡大, 飯田 明由, 吉永 司
    • Organizer
      日本機械学会第100期流体工学部門講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] The Analysis of Jet Flow and Sound Generation of the Reed-Type Artificial Vocal Fold2022

    • Author(s)
      Yoshinaga T., Arai, T., Yokoyama H., and Iida A.
    • Organizer
      The 7th International Conference of Jets, Wakes, and Separation Flows (ICJWSF2022)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 声帯 2 質点モデルに対する3 次元圧縮性数値流体シミュレーション2022

    • Author(s)
      吉永司,Zhaoyan Zhang, 飯田明由
    • Organizer
      日本音響学会2022年春季研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Comparison Between Lumped-Mass Modeling and Flow Simulation of the Reed-Type Artificial Vocal Fold2021

    • Author(s)
      Inaam R., Yoshinaga T., Arai T., Yokoyama H., and Iida A.
    • Organizer
      Interspeech 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 声道内の狭窄と気流がリード式人工声帯の母音生成に及ぼす影響2021

    • Author(s)
      吉永 司, 荒井 隆行, 横山 博史, 飯田 明由
    • Organizer
      日本音響学会2021年秋季研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 電磁制御されたリード式人工喉頭を用いた短時間母音生成2021

    • Author(s)
      小泉 正樹, 吉永 司, 荒井 隆行, 飯田 明由
    • Organizer
      日本音響学会2021年秋季研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 狭窄を有する声道内の気流と音がリード式人工声帯の振動様式に与える影響2021

    • Author(s)
      吉永司,荒井隆行,横山博史,飯田明由
    • Organizer
      第35回数値流体力学シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] リード式人工声帯の流体―構造―音響連成解析2021

    • Author(s)
      吉永司,荒井隆行,横山博史,飯田明由
    • Organizer
      第41回流力騒音シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 摩擦音発音の空力音シミュレーション2021

    • Author(s)
      吉永司
    • Organizer
      第116回NINJALコロキウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Aeroacoustic simulation on sibilant fricative production using a volume penalization method2021

    • Author(s)
      Yoshinaga T., Nozaki K., Yokoyama, H. and Iida A.
    • Organizer
      14th World Congress in Computational Mechanics (WCCM) and ECCOMAS Congress 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Aeroacoustic simulation on a simplified vocal tract model with tongue movement for the articulation of [s]2020

    • Author(s)
      Yoshinaga T., Nozaki K., Yokoyama, H. and Iida A.
    • Organizer
      12th International Conference on Voice Physiology and Biomechanics (ICVPB2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] リード式人工声帯の空力音響シミュレーション2020

    • Author(s)
      吉永司,Rafia Inaam,荒井隆行,横山博史,飯田明由
    • Organizer
      日本音響学会2020年秋季研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 人工声帯の流体―構造-音響連成シミュレーション2020

    • Author(s)
      吉永司,Rafia Inaam,荒井隆行,横山博史,飯田明由
    • Organizer
      第 34 回数値流体力学シンポジウム
    • Related Report
      2020 Research-status Report
  • [Remarks] 研究紹介

    • URL

      https://www.tut.ac.jp/university/faculty/me/post_65.html

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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