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Experimental and Theoretical Study on Sound-Absorbing Materials Made from Biomass

Research Project

Project/Area Number 16K06151
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Dynamics/Control
Research InstitutionNiigata University

Principal Investigator

Sakamoto Shuichi  新潟大学, 自然科学系, 准教授 (40211932)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords吸音材料 / 植物由来材料 / 建築構造・材料 / 公害防止・対策 / 廃棄物再資源化
Outline of Final Research Achievements

This study elucidates the sound-absorbing characteristics of biomass, such as rice straw and wastepaper.
Experimental equipment was constructed and used to measure the phenomenon in which the waveguide effect appearance in the tubular plants caused an increase in the apparent thickness of the sound-absorbing material. Moreover, the theoretical investigation of the oblique incidence sound absorption coefficient was conducted.
Experiments and theoretical analysis were performed on the sound-absorbing characteristics of bundled rice straw, thereby integrally accounting for the clearance between the straw and cylindrical and the concentric clearance. Further, experiments and a theoretical analysis were performed on the cross- sections of the structures made from bundled wastepaper. These cross-sections resembled layered corrugated board. The experimental and calculated values were in good agreement, resulting in the verification of the calculation models.

Academic Significance and Societal Importance of the Research Achievements

多孔質吸音材料は、連続気孔の内壁における空気の粘性摩擦による音の減衰を利用している。イネ科などの被子植物では、死んだ細胞の壁の一部が無くなり、細胞壁が連続的な道管を形成する。この天然の連続気孔は、優れた吸音材料となる。
稲藁をこのような形態で吸音材料に応用した例はなく、また、段ボール形状の断面についても、系統立った研究はなく、学術的意義が大きい。
これらの知見は熱交換器や触媒など工業的に有用である。本研究は「低コストで製造に多くのエネルギーを要しない材料は、農業等の副産物に存在する」事に着目した。天然素材の活用は、農業と建設業、工業などとの共存共栄をもたらし、持続可能な社会に貢献する。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (3 results) (of which Int'l Joint Research: 2 results) Book (1 results)

  • [Journal Article] Experiment and estimation of the sound absorption coefficient for clearance of corrugated honeycomb2019

    • Author(s)
      Shuichi SAKAMOTO, Yuki MARUYAMA, Kohei YAMAGUCHI, Kohei II
    • Journal Title

      Journal of the Acoustical Society of America

      Volume: 145 Issue: 2 Pages: 724-733

    • DOI

      10.1121/1.5089427

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimation and experiment for sound absorption coefficient of three clearance types using a bundle of nested tubes2018

    • Author(s)
      Sakamoto Shuichi、Tanikawa Hirohiko、Maruyama Yuki、Yamaguchi Kohei、Ii Kohei
    • Journal Title

      The Journal of the Acoustical Society of America

      Volume: 144 Issue: 4 Pages: 2281-2293

    • DOI

      10.1121/1.5063348

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Study for sound-absorbing materials of biomass tubule (Oblique incident sound-absorption coefficient of oblique arrangement of rice straws)2017

    • Author(s)
      坂本 秀一,鶴巻 太盛,藤澤 洸平,山宮弘毅
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 83 Issue: 845 Pages: 16-00344-16-00344

    • DOI

      10.1299/transjsme.16-00344

    • NAID

      130005303906

    • ISSN
      2187-9761
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Sound-absorbing materials using of rice straws (Oblique incident sound-absorption coefficient of oblique arrangement of hollow cylindrical biomass)2018

    • Author(s)
      Shuichi Sakamoto, Taisei Tsurumaki, Kohei Fujisawa, Koki Yamamiya
    • Organizer
      INTER-NOISE 2018 (47th International Congress and Exposition on Noise Control Engineering)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sound-absorbing materials of rice straws (Oblique incident sound-absorption coefficient of oblique arrangement of hollow cylindrical biomass)2017

    • Author(s)
      Shuichi SAKAMOTO, Taisei TSURUMAKI, Kohei FUJISAWA and Koki YAMAMIYA
    • Organizer
      ICOA 2017 (International conference on Optoacoustics), No. 5, May 19 - 20, 2017, Niigata University, Satellite Campus in Niigta Station "Tokimeito" Niigata, Japan.
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] コルゲート板の隙間における吸音率の推定と実験2017

    • Author(s)
      丸山裕貴, 坂本秀一, 山口紘平, 井伊恒平, 橋本歩弥
    • Organizer
      日本機械学会北陸信越支部第54期総会・講演会
    • Place of Presentation
      金沢大, 石川県金沢市
    • Related Report
      2016 Research-status Report
  • [Book] 吸音・遮音材料の開発、評価と騒音低減技術2018

    • Author(s)
      坂本慎一, 山本崇史, 坂本秀一ほか60名
    • Total Pages
      721
    • Publisher
      技術情報協会
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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