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Development of Technique for Identification of Excitation Sources Using Vibration Intensity Method

Research Project

Project/Area Number 07555396
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Dynamics/Control
Research InstitutionYamaguchi University

Principal Investigator

KOJIMA Naoya  Yamaguchi University, Faculty of Engineering, Professor, 工学部, 教授 (40091186)

Co-Investigator(Kenkyū-buntansha) SAITO Masao  Daikin Industries, Ltd., Mechanical Enineering Laboratory, Researcher, 機械技術研究所, 研究員
OKAMOTO Yoshio  Daikin Industries, Ltd., Residential Airconditioning Manufacturing Division, 住宅空調生産本部設計部, 主事
IZUMI Haruo  Yamaguchi University, Faculty of Engineering, Research Associate, 工学部, 助手 (80035047)
ZHOU Hai  Shimane University, Interdisciplinary Faculty of Science and Engineering, Associ, 総合理工学部, 助教授 (10250680)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 1997: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1996: ¥2,400,000 (Direct Cost: ¥2,400,000)
KeywordsVibration Intensity / Vibration Measurement / Identification of Excitation Sources / Vibration Energy FLow / Visualization / Transient Response / Flexural Vibration / 適度応答 / 計測 / 振動 / 振動伝達 / 振動エネルギー
Research Abstract

In determining the effective ways for machine noise control, it is important to clarify the noise sources and their contributions. In a machine structure, the vibration energy exerted on the excitation point is transmitted through beams and/or plates, causes vibration and is radiated as noise from its surface. The noise sources don't always coincide with the excitation points in a structure. Therefore, the identification of excitation sources and vibration energy transmission paths can give a decisive information on the noise and vibration control measures. The vibration intensity (VI) techniques is thought to be useful for this purpose. VI is obtained as vibration power per unit width in a given direction. There are some difficulities in applying this intensity method to diagnostics for practical mechanical structures. The calculation of third-order derivatives from a set of vibration data measured at different points may cause error. Furthermore, transient features of vibration energy flow, which are generally observed in most practical structures, are lost due to the time-averaging process. The objective of this research is to develop a simplified measurement technique applicable to the VI measurement in practical mechanical structures. In the present research, the envelope technique with three-channel VI pick-up was employed to the data processing to analyze transient characteristics of vibration energy flow. Application limits of the present method near boundaries and on curved plates were clarified by experiments and by FEM simulation. Attempts were made to measure the vibration intensity on the practical mechanical structures within the application limits. Time-dependent multipath-transmissions of vibration energy were visualized successfully. It was shown that the application of the present technique can be informative in the diagnostics and control of noise and vibration in practical mechanical structures.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (55 results)

All Other

All Publications (55 results)

  • [Publications] Zhou, Hai: "The Measurement of Vibration Intensity on the Cylindrical Casing of Compressor" Proceedings of Inter-Nois′95. 677-680 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 周, 海: "3チャンネル法による平板の振動インテンシティ計測に関する基礎的研究" 山口大学工学部研究報告. 46-1. 1-8 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 常, 建宇: "平板におけるエンベロープ振動インテンシティ計測に関する基礎的研究" 山口大学工学部研究報告. 46-1. 9-16 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 小嶋, 直哉: "曲率を持った薄板における振動インテンシティに関する一検討" 日本機械学会VS Tech′95振動・音響新技術講演論文集. 95-16. 144-147 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 小嶋, 直哉: "振動インテンシティ法による段差を有する平板の振動伝搬解析" 日本機械学会山口地方講演会講演論文集. 221-222 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 小嶋, 直哉: "有限差分法を用いた曲板内の振動インテンシティ計測" 日本機械学会講演論文集. 965-1. 199-200 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 小嶋, 直哉: "振動インテンシティ計測の課題と展望(招待講演)" 日本音響学会平成8年度春季研究発表会講演論文集. 701-704 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 藤林, 聖司: "段付き平板における振動インテンシティ計測について" 日本機械学会機械力学・計測制御講演論文集. 96-5 I・B. 312-315 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, Naoya: "Measurement of Vibration Intensity in U-shaped Shell" Proceedings of Inter-Noise′96. 1379-1382 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, Naoya: "Visualization of Transient Vibration Energy Flow in a Shell Structure" Proceedings of ASVA′97. 543-548 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, Naoya: "Measurement of Transient Vibration Power Flow in a Car Door Panel Using Intensity Technique" SAE Noise and Vibration Conterence Paper No.972035. 1289-1295 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 平湯, 徹: "曲面におけるレーザ振動計を用いた振動エネルギーの計測" 日本機械学会VS Tech′97振動音響新技術講演論文集. 97-37. 196-199 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, Naoya: "An Experimental Attempt to Identify Vibration Energy Flow on Car Exterior Panels through Intensity Method" European Conference on Vehicle Noise & Vibration. (in printing). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 周, 海: "U型シェルの湾曲部における振動インテンシティ計測" 日本機械学会論文集(C編). (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 梅澤 清彦: "静粛工学" 開発社(松原季男), 397 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Zhou, H., Kojima, N.and Mii, N.: "The Measurement of Vibration Intensity on the Cyindrical Casing of Compressor" Proceedings of Inter-noise. 95. 677-680 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Zhou, H.and Kojima, N.: "A Study on Vibration Intensity Measurements in Plate with Three-Channel Method" Memoirs of the Faculty of Engineering Yamaguchi University. 46-1. 1-8 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Chang, J., Zhou, H.and Kojima, N: "A Study on Measurment of Envelope Vibraion Intensity in Plate" Memoirs of the Faculty of Engineering Yamaguchi University. 46-1. 9-16 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N., Zhou, H., Endo, M., Saito, M.and Okamoto, Y.: "A Study of Vibration Intensity in Thin Cylindrical Shell" Proceedings of JSME. No.95-16. 144-147 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N., Zhou, H.and Fujibayashi, S.: "Vibration Transmission Analysis of Stepped Plate by Vibration Intensity Method" Proceedings of JSME. 221-222 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N., Zhou, H.and Endo, M.: "Vibration Intensity Measurment in a Curved Plate Using Finite Difference Method" Proceedings of JSME. No.965-1. 199-200 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N.: "A Perspective on the Status of Vibration Intensity Measurement" Proceedings of ASJ. 701-704 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Fujibayashi, S., Zhou, H.and Kojima, N.: "Measurement of Vibration Intensity in a Stepped Plate" Proceedings of JSME. [No.96-5 I], Vol.B. 312-315 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N., Zhou, H., Endo, M., Saito, M.: "Measurement of Vibration Intensity in U-Shaped Shell" Proceedings of Inter-noise. 96. 1379-1382 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N., Zhou, H., Mikami, M., Hirayu, T.: "Visualization of Transient Vibrational Energy Flow in a Shell Structure" Proceedings of ASVA. 97. 543-548 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N., Zhou, H., Fujibayashi, S.and Hirayu, T.: "Measurement of Trasient Vibrational Power Flow in a Car Door Panel Using Intensity Technique" SAE Noise and Vibration Conference and Exposition. Paper No.972035. 1289-1295 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Hirayu, T., Mikami, M., Zhou, H.and Kojima, N.: "Measurement of Vibration Energy FLow Using Laser Vibrometers on Curved Plate" Proceedings of JSME. No.97-37. 196-199 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kojima, N., Hirayu, T., Mikami, M., Zhou, H.: "An Experimental Attempt to Identify Vibration Energy Flow on Car Exterior Panels through Intensity Method" European Conference on Vehicle Noise & Vibration. (to be presented). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Zhou, H., Kojima, N., Saito, M.and Endo, M.: "Measurement of Vibration Intensity on U-Shaped Shell" Trans.JSME (C). 64-621 (in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Zhou,Hai: "The Measurement of Vibration Intensity on the Cylindrical Casing of Compressor" Proceedings of Inter-Noise'95. 677-680 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] 周,海: "3チャンネル法による平板の振動インテンシティ計測に関する基礎的研究" 山口大学工学部研究報告. 46・1. 1-8 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] 常,建宇: "平板におけるエンベロープ振動インテンシティ計測に関する基礎的研究" 山口大学工学部研究報告. 46・1. 9-16 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小嶋,直哉: "曲率を持った薄板における振動インテンシティに関する一検討" 日本機械学会VSTech'95講演論文集. 144-147 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小嶋,直哉: "振動インテンシティ法による段差を有する平板の振動伝搬解析" 日本機械学会山口地方講演会講演論文集. 221-222 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小嶋,直哉: "有限差分法を用いた曲板内の振動インテンシティ計測" 日本機械学会中国四国支部第34期総会講演論文集. 199-200 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小嶋,直哉: "振動インテンシティ計測の課題と展望(招待講演)" 日本音響学会平成8年度春季研究発表会講演論文集. 701-704 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kojima,Naoya: "Measurement of Vibration Intensity in U-Shaped Shell" Proceedings of Inter-Noise'96. 1379-1382 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kojima,Naoya: "Visualization of Transient Vibrational Energy Flow in a Shell Structure" Proceedings of ASVA'97. 543-548 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kojima,Naoya: "Measurement of Transient Vibrational Power Flow in a Car Door Panel Using Intensity Technique" SAE Proceedings of The 1997 Noise and Vibration Conference. 1289-1295 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 平湯,徹: "曲板におけるレーザ振動計を用いた振動エネルギーの計測" 日本機械学会VSTech'97講演論文集. 196-199 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kojima,Naoya: "An Experimental Attempt to Identify Vibration Energy Flow on Car Exterior Panel through Intensity Method" Transactions of European Conference on Vehicle Noise & Vibration,IME. (掲載決定). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 周,海: "U形シェルの湾曲部における振動インテンシティ計測" 日本機械学会論文集(C編). (掲載決定). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 梅澤,清彦: "静粛工学" 開発社(松原季男), 397 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] Naoya Kojima,Hai Zhou,M Endo,M Saito: "Measurement of Vibration Intensity in U-Shaped Shell" Proc.1996 Int.Conf.Noise Control Engg. 1379-1382 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 藤林聖司,周 海,小嶋直哉: "段付き平板における振動インテンシティ計測について" 日本機械学会機械力学・計測制御講演会論文集. 312-315 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Naoya KOJIMA,Hai ZHOU,Masato MIKAMI,Toru HIRAYU: "Visualization of Transient Vibration Energy Flow in a Shell Structure" International Symposium on Simulation,Visualization and Auralization for Acoustic Rasearch and Education. (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Naoya KOJIMA,Hai ZHOU,Seiji FUJIBAYASI,Toru HIRAYU: "Measurement of Transient Vibrational Power Flow in a Car Door Panel Using Intensity Technique" 1997 SAE NOISE & VIBRATION CONFERENCE & EXPOSITION. (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 小嶋直哉,周 海,遠藤誠彦,斉藤正雄,岡本誉士夫: "曲率を持った薄板における振動インテンシティに関する一検討" VS Tech'95振動・音響シンポジウム講演論文集. 144-147 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 小嶋直哉,周 海,藤林聖司: "振動インテンシティ法による段差を有する平板の振動伝搬解析" 日本機械学会中国支部第34期総会・講演会論文集. 199-200 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Hai Zhou,Naoya Kojima,Nobuyuki Mii: "The Measurement of Vibration Intensity on the Cylindrical Casing of Compressor" Proc.1995 Int.Conf.Noise Control Engg. 677-680 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 周 海,小嶋直哉: "3チャンネル法による平板の振動インテンシティ計測に関する基礎的研究" 山口大学工学部研究報告. 46. 1-8 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 常 建宇,周 海,小嶋直哉: "平板におけるエンベロープ振動インテンシティ計測に関する基礎的研究" 山口大学工学部研究報告. 46. 9-16 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 小嶋直哉,周 海,遠藤誠彦: "有限差分法を用いた曲板内の振動インテンシティ計測" 日本機械学会中四国支部山口地方講演会論文集. 221-222 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 小嶋直哉: "振動インテンシティ計測の課題と展望" 日本音響学会 平成8年春期研究発表会招待講演. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 梅澤清彦監修,(小嶋直哉ら共著): "静粛工学" 開発社, 390 (1995)

    • Related Report
      1995 Annual Research Report

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

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