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FUNDAMENTAL RESEARCH ON IMPACT RESPONSE AND IMPACT SOUND GENERATION OF BRIDGE SLABS

Research Project

Project/Area Number 13650534
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionDAIDO INSTITUTE TECHNOLOGY

Principal Investigator

MIZUSAWA Tomisaku  Daido Institute of Technology, Department of Civil Engineering and Environmental Design, Professor, 工学部, 教授 (60113081)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2002: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2001: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsIMPACT SOUND / GENERATION OF IMPACT SOUND / IMPACT RESPONSE / ACOUSTIC PROPERTIES / RESUILUAL SOUND / CORE ; LATION ON VIBRATION AND SOUND / ACOUSTIC SPECTRUM / ENVELOP OF FREQUENCY SPECTRAM / 周波数スペクトルエンベローブ勾配 / 音響インテンシティ / 衝撃応答の発生機構 / 曲げ波の伝播特性
Research Abstract

(a) IMPACT RESPONSE AND GENERATION OF IMPACT SOUND OF PLATES DUE TO COLLING BODY
This report presents the impact response of rectangular Mindlin plates subjected to colliding of a steel ball by using the eigenfunction expansion method and the Hertz's law of contact. The effects of impact force, contact time and material properties on the generation mechanism of impact response and the characteristics of propagation of flexural waves have been investigated. It is seen that the initial impact response of steel plates and wooden plates subjected to a colliding steel ball shows some different mechanism on the wave propagation. Beside the difference of mechanism of impact response generation, the sound pressure calculated by the present method on the assumption of plane wave shows good agreement of the acoustically experimental result.
(b) RADIATION MECHANISM AND TIMBRE OF IMPACT SOUND OF PLATES DUE TO COLLING BODY
Impact response and radiation of impact sound generated from bridge slabs and its joints under the action of moving vehicles have been one of the environmental noise problems. In view of troublesome nature of impact sound, several authors reported a series of studies on impact noise. However, attention was given to the radiation of residual sound after the impact of a body and a plate. In this report, the radiation mechanism and timbre of impact sound generated from plates subjected to colliding spherical bodies by the acoustic experiment are investigated. The effects of geometric and material properties of plates and spherical bodies on frequency spectrogram of sound pressure have been clarified, and the correlation between frequencies of vibrating plates and impact sound caused from plates due to colliding spherical bodies are also investigated.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 近藤八重: "鋼球の衝突を受ける平板の衝撃応答の発生機構と曲げ波の伝播特性"応用力学論文集. Vol.5. 83-91 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 木村健一: "Spline要素法を用いた2方向に変厚な扇形Mindlin板の振動解析"構造工学論文集. Vol.48A. 19-26 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 近藤八重: "定常振動下での板の音響放射率について"土木学会第57回年次学術講演会講演概要集. I-061. 121-122 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 河原田豊: "鋼球の衝突を受ける板の衝撃音に関する基礎的研究"土木学会第57回年次学術講演会講演概要集. I-200. 399-400 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 近藤八重: "衝突球を受ける平板から発生する衝撃音の音質評価"平成14年度土木学会中部支部研究発表会講演概要集. I-34. 67-68 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 水澤富作: "Spline要素法を用いた周辺自由な平板の振動解析"平成14年度土木学会中部支部研究発表会講演概要集. I-33. 65-66 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yae KONDO: "Mechanism of impact response generation and characteristics of propagation of propagation of flexural waves of rectangular plates subjected to colloding of a steel ball"Journal of Applied Mechanics, JSCE. Vol. 5. 83-91 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kenichi KIMURA: "Vibration of annular sector Mindlin plate varying thickness in two directions using the spline element method"Journal of Structural Engineering, JSCE. Vol. 48A. 19-26 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yae KONDO: "Radiation coefficency of vibration plates"57th Annual Conference of the Japan Society of Civil Engineers. I-061. 121-122 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yutaka KAWAHARADA: "Fundamental study on impact sound of plates subjected to colliding spherical ball"57th Annual Conference of the Japan Society of Civil Engineers. I-200. 399-400 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yae KONDO: "Assessment indexes on timbre of impact sound generated from plates due to a colliding body"2002 Annual Conference of the Chubu Branch of the Japan Society of Civil Engineers. I-34. 67-68 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomisaku MIZUSAWA: "Vibration of completely free plates using the spline element method"2002 Annual Conference of the Chubu Branch of the Japan Society of Civil Engineers. I-33. 65-66 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 近藤八重: "鋼球の衝突を受ける平板の衝撃応答の発生機構と曲げ波の伝播特性"応用力学論文集. Vol.5. 83-91 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 木村健一: "Spline要素法を用いた2方向に変厚な扇形Mindlin板の振動解析"構造工学論文集. Vol.48A. 19-26 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 近藤八重: "定常振動下での板の音響放射率につい"土木学会第57回年次学術講演会講演概要集. I-061. 121-122 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 河原田豊: "鋼球の衝突を受ける板の衝撃音に関する基礎的研究"土木学会第57回年次学術講演会講演概要集. I-200. 399-400 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 近藤八重: "衝突球を受ける平板から発生する衝撃音の音質評価"平成14年度土木学会中部支部研究発表会講演概要集. I-34. 67-68 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 水澤富作: "Spline要素法を用いた周辺自由な平板の振動解析"平成14年度土木学会中部支部研究発表会講演概要集. I-33. 65-66 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Mizusawa, T.: "Application of the spline element method to analyze vibration of skew Mindlin plates with varying thickness"Journal of Sound and Vibration. Vol.241. 485-501 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 近藤八重: "Spline要素法を用いた変断面性状を有する長方形木板の振動解析"応用力学論文集. Vol.4. 183-194 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 近藤八重: "粘弾性直交異方性Mindlin板の振動解析と損失正接について"土木学会第56回年次学術講演会講演概要集. I-B234. 468-469 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 近藤八重: "鋼球の衝突を受ける板の衝撃応答の発生メカニズムと曲げ波の伝播特性"土木学会第56回年次学術講演会講演概要集. I-31. 61-62 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 滝沢宣人: "平板から発生する衝突音に関する基礎的研究"平成13年度土木学会中部支部研究発表会講演概要集. I-18. 35-36 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 河原田 豊: "鋼球の衝突を受ける平板から発生する衝突音の音響インテンシティの分布特性"平成13年度土木学会中部支部研究発表会講演概要集. I-17. 33-34 (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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