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DEVELOPING STUDY ON EVALUATION METHODS OF SOUND INSULATION CHARACTERISTICS OF PLATES USING SMALL AREA MATERIALS AND TRANSFER FUNCTION ANALYSIS

Research Project

Project/Area Number 08555144
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Architectural environment/equipment
Research InstitutionNiigata University

Principal Investigator

IWASE Teruo  Niigata University, Faculty of engineering, Professor, 工学部, 教授 (30114391)

Co-Investigator(Kenkyū-buntansha) SAKUMA Tetsuya  Niigata University, Faculty of Engineering, Assistant, 工学部, 助手 (80282995)
YOSHIMURA Junichi  Kobayashi Institute of Physical research, Chief Researcher, 建築音響研究室, 主任 (00142050)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1997: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1996: ¥6,400,000 (Direct Cost: ¥6,400,000)
KeywordsSOUND INSULATION / TRANSFER FUNCTION ANALYSIS / MASS LAW / COINCIDENT EFFECTS / REVERBERATION ROOM / ANECHOIC CHAMBER / DIGITAL SIGNAL PROCESSING / RESONANCE TRANS MISSION / コインシデンス周波数 / 面密度
Research Abstract

A very simple evaluation method of sound insulation characteristics of a palate was proposed. By this method, sound insulation characteristics could be observed from transfer functions of transmitted sound through a test plate with small area or exited vibration on it against incident sound just to the surface of the plate.
A new method could be carried out in semi-free field by using the technique receiving only transmitted sound and reducing diffraction sound to the behind.
Therefore, it had not necessity of special acoustical test room such as anechoic room or reverberation room. The tests under not only normal incident condition but also oblique incident angle condition could be carried out. From several tests, in a typical room in a building, on such as glass plate, gypsum board and plywood boards with square size of 900mmx900mm and supported at their four corner edges, following results were obtained.
At first, sound insulation characteristics similar "transfer functions" could be observed by comparing the analyzed results. Secondly, coincident effects for each material or for each incident angle were shown as the higher peak, meaning strong sound transmission, and lower peak, meaning not so clear effect, in transfer functions at high frequency range. Also frequency changes of the peak caused by coincidence effect could be clearly shown for each sound incident angle condition.
As for two leaf plate walls, using small anechoic chamber was also tested to insulate and to reduce direct and diffraction sound pressures on receiving side plate. By this method, resonance transmission effects in low frequency and their frequency changes with setting conditions could be observed. As the conclusion, the new method is useful in design or developing process of dry board walls.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Teruo IWASE et al.: "An evaluation method of sound insulation characteristics of a plate using small area material and transfer function analysis." Proceedings of internoise97. Vol.3,. 1445-1448 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 吉田 卓生, 岩瀬 昭雄: "音響管を用いた遮音性能に及ぼす隙間の影響に関する基礎実験" 日本建築学会大会学術講演梗概集(関東). D-1. 213-214 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 吉村 純一: "外周壁の遮音性能" 騒音制御. Vol.21,No.4. 230-233 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 吉村 純一: "板ガラスの音響透過損失に関する研究" 日本建築学会計画系論文集. No.505. 9-14 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tetsuya SAKUMA ET al.: "Numerical vibro-acoustic analysis of sound fields coupled with a baffled membrane" Journal of Acoustical Society of JAPAN (E),. Vol.18 No.6. 311-318 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Teruo IWASE et al.: "An evaluation method of sound insulation characteristics of a plate using small area material and transfer function analysis." Proceedings of internoise 97. Vol.3. 1445-1448 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takuo YOSIDA,Teruo IWASE: "Study of effect of opening air gap on sound insulation characteristics." Summaries of technical papers of annual meeting architectural institute of JAPAN. D-1. 213-214 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Junichi YOSHIMURA: "STUDY ON SOUND TRANSMISSION LOSS OF GLASS PLANE." journal of Architecture, Planning and environmental engineering. No.505 (in Printing). 9-14 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Junichi YOSHIMURA: "Sound Insulation Performance of Facades and Facade Elements." Journal of INCE/J. Vol.21 No.4. 230-233

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tetsuya SAKUMA et al.: "Numerical vibro-acoustic analysis of sound fields coupled with a baffled membrane." Journal of Acoustical Society of JAPAN (E). Vol.18 No.6. 311-318 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Teruo IWASE et al.,: "An evaluation method of sound insulation characteristics of a plate using small area material and transfer function analysis." Proceedings of internoise97. Vol. 3,. 1445-1448 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 吉田卓生,岩瀬昭雄: "音響管を用いた遮音性能に及ぼす隙間の影響に関する基礎実験" 日本建築学会大会学術講演梗概集(関東). D-1. 213-214 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 吉村純一: "外周壁の遮音性能" 騒音制御. Vol. 21, No. 4. 230-233 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 吉村純一: "板ガラスの音響透過損失に関する研究" 日本建築学会計画系論文集. No. 505. 9-14 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Tetsuya SAKUMA et al.,: "Numerical vibro-acoustic analysis of sound fields coupled with a baffled membrane" Journal of Acoustical Society of JAPAN (E) ,. Vol. 18 No. 6. 311-318 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 細川政洋,岩瀬昭雄: "小面積試料を用いた伝達関数分析評価法による石膏ボードの遮音性能の比較" 日本建築学会大会(近畿)学術講演梗概集. D-1(環境工学). 27-28 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 細川政洋,岩瀬昭: "小面積試料を用いた評価法による石膏ボードの遮音性能の計測" 日本建築学会北陸支部研究報告集. 39号. 190-193 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 吉村純一,杉江聡,小川博正他: "外周壁及び外周壁部材の遮音性能測定方法について" 日本音響学会講演論文集. 平成8年度秋季. 795-796 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] J.Yoshimura,K.Ando,T.Koga: "Short time method for field measurement of sound insuration between rooms." Inter Noise 96 Proceedings. Book5. 2737-2742 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 吉村純一: "外周壁遮音性能測定方法の動向と国際化" 騒音制御. 20巻5号. 35-38 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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