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Development of Measuring Method of Loss Factor of Wall and Sound Insulation Analysis by SEA

Research Project

Project/Area Number 06452297
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Architectural environment/equipment
Research InstitutionFaculty of Engineering, Kagoshima University

Principal Investigator

KUROKI Souichiro  Kagoshima Univ.Faculty.of Eng.Associate Professor, 工学部, 助教授 (30094139)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥3,500,000 (Direct Cost: ¥3,500,000)
KeywordsLoss Factor / Impulse Response / Sound Intensity Measurement / Sound Radiation / SEA / Sound Transmission Loss / Resonant Transmission / Non-resonant Transmission / 圧電振動板 / 振動減衰時間 / Time Reverse法 / 結合損失係数 / 音響放射率
Research Abstract

1. Experimental Study on measuring method of loss factor of wall.
Total loss factor of single-leaf wall was measured for the purpose of quantitative analysis of the internal loss factor. Time reverse analysis was introduced for the improvement of measuring accuracy of the reverberation time method. Loss factor of panel mounted in the opening of transmission suite (simply supported) was affected considerably by the energy loss at the edge. Impulse response method was introduced and can reduce the measuring time.
2. Measurement of sound radiation efficiency of single leaf wall by the sound intensity method
Characteristic of sound radiation from a rectangular panel which was excited by piezoelectricity vibration diaphragm was visualized by using of the sound intensity method. Those characteristics every 1/3 octave band are valuable data that can verify the radiation theory of panel.
3. SEA analysis of sound transmission loss
SEA method applied to transmission loss of single wall was improved by investigating the coupling loss factor of resonant and non-resonant transmission. The effects of the internal loss factor and the energy absorption coefficient at edge on the transmission loss were studied quantitatively.
4. The subject for a future study
It would be necessary to investigate the various panel materials and the various panel area and the supporting conditions.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] 黒木荘一郎: "単層壁の透過損失に与える損失係数および周辺エネルギー吸収率の影響" 日本音響学会講演論文集. II. 899-900 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 遊喜純子: "壁体の損失係数測定法に関する実験的研究-Time Reverse法による測定精度の検討-" 日本音響学会講演論文集. II. 897-898 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 遊喜純子: "SEA法による単層壁の透過損失について-共振透過および非共振透過の結合損失係数の検討-" 日本建築学会九州支部研究報告. 35. 61-64 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 黒木荘一郎: "SEA法による単層壁の透過損失計算について-非共振透過および共振透過の結合損失係数の検討-" 日本建築学会大会学術講演梗概集. 231-232 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 岩辺宣彦: "音響インテンシティ計測法を用いた単層壁の音響放射効率測定" 日本建築学会中国・九州支部研究報告. 10. 37-40 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 藤本尚子: "壁体の損失係数測定法に関する実験的研究-単層壁の損失係数測定へのインパルスレスポンス法の適用" 日本建築学会中国・九州支部研究報告. 10. 41-44 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Soichiro Kuroki: "Effect of Loss Factor and Absorption Coefficient at Edge on Transmission Loss of Single-Leaf Wall" Proc.Autumn Meet.Acoust.Soc.Jpn.899-900 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Junko Yuuki: "Experimental Study on Measuring Method of Loss Factor of Panel-Examination on the Accuracy of Measurement Introducing Time Reversed Analysis-" Proc.Autumn Meet.Acoust.Soc.Jpn.897-898 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Junko Yuuki: "Sound Transmission Loss of Single Panels by Using of SEA Method-Examination on Coupling Loss Factors for Resonance and Non-resonance Transmission-" Research Report of Kyushu Branch, AIJ. No.35. 61-64 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Soichiro Kuroki: "Sound Transmission Loss of Single Panels by Using of SEA Method-Examination on Coupling Loss Factors for Non-resonance and Resonance Transmission-" Proc.of AIJ annual Meet.Vol.D-1, Environmental Eng.231-232 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Nobuhiko Iwabe: "Measurement of Sound Radiation Efficiency of Single-leaf Wall Using by Sound Intensity Method" Research Report of Kyushu and Chugoku Branch, AIJ. No.10. 37-40 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hisako Fujimoto: "Experimental Study on Measuring Method of Loss Factor of Wall-Application of Impulse Response Method to Measurement of Loss Factor of Single Leaf Wall-" Research Report of Kyushu and Chugoku Branch, AIJ. No.10. 41-44 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 黒木荘一郎: "SEA法による単層壁の透過損失について" 日本建築学会大会学術講演梗概集. D-1. 231-232 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 岩辺宣彦: "音響インテンシティ計測法を用いた単層壁の音響放射効率測定" 日本建築学会中国・九州支部研究報告. 第10号・2(発表予定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 藤本尚子: "壁体の損失係数測定法に関する実験的研究" 日本建築学会中国・九州支部研究報告. 第10号・2(発表予定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 黒木 荘一郎: "壁体の損失係数測定法に関する実験的研究-Time Reverse法導入による測定精度の検討" 日本建築学会学術講演梗概集. 1645-1646 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 黒木 荘一郎: "壁体の損失係数測定法に関する実験的研究-Time Reverse法による測定精度の検討" 日本音響学会講演論文集. 897-898 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 黒木 荘一郎: "単層壁の透過損失に与える損失係数および周辺エネルギー吸収率の影響" 日本音響学会講演論文集. 899-900 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 黒木 荘一郎: "SEA法による単層壁の透過損失について-共振透過および非共振透過の結合損失の検討" 日本建築学会九州支部研究報告. (印刷中). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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