Structural diagnostic system based on chaotic excitation

• Project/Area Number: 22760350
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Ritsumeikan University
• Principal Investigator: NOMURA Yasutoshi 立命館大学, 理工学部, 助教 (20372667)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 異常診断 / 信号処理 / カオス / アトラクタ / 常時微動 / 構造ヘルスモニタリング / カオス理論 / 振動モニタリング

Research Abstract

Attempts were made to develop a vibration-based damage detection method using chaotic excitation and to investigate the feasibility of damage detection method with no reference data. It was observed that the proposed system could detect damage location through comparisons with attractor obtained before or after the damage. Numerical results also demonstrated that the proposed method can make it possible to detect the damage location without using any reference data under some conditions of the observed structures.

Research Products

• [Journal Article] 応答アトラクタの交差予測に基づく構造異常診断法の開発とBaseline-less型への適用可能性調査 (2011)
  • Author(s): 野村泰稔, 日下貴之, 森本大貴
  • Journal Title: 構造物の安全性と信頼性(JCOSSAR2011論文集) Volume: 7 Pages: 230-235
  • Peer Reviewed
• [Journal Article] Adaboostによる振動予測を用いた橋梁ヘルスモニタリングシステムの構築に関する実験的研究 (2011)
  • Author(s): 服部洋, 古田均, 野村泰稔, 中津功一朗, 石橋健
  • Journal Title: 土木学会論文集A2(応用力学論文集) Volume: 67(14) Pages: 825-832
  • NAID: 130004557228
  • Peer Reviewed
• [Journal Article] GAによる実用化を目指した長期的な橋梁維持管理計画策定 (2011)
  • Author(s): 中津功一朗, 古田均, 野村泰稔, 高橋亨輔, 石橋健, 三好紀晶
  • Journal Title: 日本知能情報ファジィ学会誌 Volume: 23(4) Pages: 95-105
  • NAID: 10029335897
  • Peer Reviewed
• [Journal Article] 応答アトラクタの交差予測に基づく構造異常診断法の開発とBaseline-less型への適用可能性調査 (2011)
  • Author(s): 野村泰稔, 日下貴之, 森本大貴
  • Journal Title: 構造物の安全性および信頼性(JCOSSAR2011論文集) Volume: 7 Pages: 230-235
  • Peer Reviewed
• [Journal Article] カオス信号入力に基づくBaseline-less型構造異常診断法の基礎的研究 (2010)
  • Author(s): 野村泰稔, 中津功一朗, 古田均, 日下貴之
  • Journal Title: 応用力学論文集 Volume: 13 Pages: 977-984
  • Peer Reviewed
• [Journal Article] 橋梁損傷度判定における複合特徴選択のためのアンサンブルシステムの構築 (2010)
  • Author(s): 中津功一朗, 野村泰稔, 古田均, 足立渉, 服部洋
  • Journal Title: 応用力学論文集 Volume: 13 Pages: 957-964
  • Peer Reviewed
• [Presentation] Reference-less Structural Vibration-based Monitoring System using Cross Prediction of Attractor (2011)
  • Author(s): Y. Nomura, H. Furuta, T. Kusaka, N. Motomura, D. Morimoto
  • Organizer: The 2011 International Conference on Advances in Structural Engineering and Mechanics(ASEM' 11)
  • Place of Presentation: ソウル(韓国)
  • Year and Date: 2011-09-21
• [Presentation] Reference-less Structural Vibration-based Monitoring System using Cross Prediction of Attractor (2011)
  • Author(s): Y.Nomura, H.Furuta, T.Kusaka, N.Motomura, D.Morimoto
  • Organizer: The 2011 International Conference on Advances in Structural Engineering and Mechanics (ASEM'11)
  • Place of Presentation: シェラトンウォーカーヒルホテル(韓国)
  • Year and Date: 2011-09-21
• [Presentation] Real-time crack monitoring system in concrete structures using non-contact displacement measurements (2011)
  • Author(s): T. Kusaka, Y. Nomura, T. Sakamoto, T. Fujii
  • Organizer: International Conference on Advanced Technology in Experimental Mechanics 2011(ATEM11)
  • Place of Presentation: 神戸国際会議場(兵庫県)
  • Year and Date: 2011-09-20
• [Presentation] Real-time crack monitoring system in concrete structures using non-contact displacement measurements (2011)
  • Author(s): T.Kusaka, Y.Nomura, T.Sakamoto, T.Fujii
  • Organizer: International Conference on Advanced Technology in Experimental Mechanics 2011 (ATEM11)
  • Place of Presentation: 神戸国際会議場(兵庫県)
  • Year and Date: 2011-09-20
• [Presentation] Debonding detection system for CFRP-reinforced concrete structure based on evaluations of elastic wave propagation (2011)
  • Author(s): T. Kusaka, Y. Nomura, T. Nakamura, S. Ito
  • Organizer: International Conference on Advanced Technology in Experimental Mechanics 2011(ATEM11)
  • Place of Presentation: 神戸国際会議場(兵庫県)
  • Year and Date: 2011-09-19
• [Presentation] Debondingdetection system for CFRP-reinforced concrete structure based on evaluations of elastic wave propagation (2011)
  • Author(s): T.Kusaka, Y.Nomura, T.Nakamura, S.Ito
  • Organizer: International Conference on Advanced Technology in Experimental Mechanics 2011 (ATEM11)
  • Place of Presentation: 神戸国際会議場(兵庫県)
  • Year and Date: 2011-09-19
• [Presentation] Crack growth monitoring system for concrete structures based on non-contact displacement measurements (2011)
  • Author(s): T. KUSAKA, Y. Nomura, T. Sakamoto, T. Fujii
  • Organizer: The 8th International Workshop on Structural Health Monitoring-2011
  • Place of Presentation: カリフォルニア(米国)
  • Year and Date: 2011-09-13
• [Presentation] Crack growth monitoring system for concrete structures based on non-contact displacement measurements (2011)
  • Author(s): T.KUSAKA, Y.Nomura, T.Sakamoto, T.Fujii
  • Organizer: The 8th International Workshop on Structural Health Monitoring-2011
  • Place of Presentation: スタンフォード大学(米国)
  • Year and Date: 2011-09-13
• [Presentation] 調和振動の入力と応答アトラクタの評価に基づく構造物の損傷診断法 (2011)
  • Author(s): 川野貴之, 野村泰稔, 日下貴之
  • Organizer: 日本材料学会第60期学術講演会
  • Place of Presentation: 大阪大学(大阪府)
  • Year and Date: 2011-05-26
• [Presentation] 進化的アルゴリズムを用いた大規模構造物の損傷確率算定に関する研究 (2011)
  • Author(s): 安藤一樹, 古田均, 中津功一朗, 野村泰稔, 石橋健
  • Organizer: 日本材料学会第60期学術講演会
  • Place of Presentation: 大阪大学(大阪府)
  • Year and Date: 2011-05-26
• [Presentation] 非接触変位場計測に基づくコンクリート構造物のき裂進展モニタリング (2011)
  • Author(s): 藤井俊史, 日下貴之, 野村泰稔
  • Organizer: 第42回応力・ひずみ測定と強度評価シンポジウム(日本非破壊検査協会)
  • Place of Presentation: 大田区産業プラザPiO,(東京都)
  • Year and Date: 2011-01-20
• [Presentation] Reference free structural health monitoring system using ambient vibration (2010)
  • Author(s): N. Motomura, Y. Nomura, H. Furuta, K. Nakatsu, H. Hattori
  • Organizer: The 23th KKCNN Symposium on Civil Engineering
  • Place of Presentation: 台北,台湾
  • Year and Date: 2010-11-13
• [Presentation] PZT素子を用いたCFRP補強コンクリートの剥離モニタリング (2010)
  • Author(s): 中村豪志, 日下貴之, 野村泰稔
  • Organizer: 第54回日本学術会議材料工学連合講演会
  • Place of Presentation: ハートピア京都(京都府)
  • Year and Date: 2010-10-26
• [Presentation] 非接触変位場計測に基づくコンクリート構造物のき裂検出システム (2010)
  • Author(s): 坂本智寛, 日下貴之, 野村泰稔
  • Organizer: 第54回日本学術会議材料工学連合講演会
  • Place of Presentation: ハートピア京都(京都府)
  • Year and Date: 2010-10-26
• [Presentation] アトラクタの局所領域の広がりに着目したカオス理論を用いたReference freeヘルスモニタリングシステム (2010)
  • Author(s): 元村尚幹, 野村泰稔, 古田均
  • Organizer: 第26回ファジィシステムシンポジウム
  • Place of Presentation: 広島大学(広島県)
  • Year and Date: 2010-09-14
• [Presentation] アトラクタの局所領域の広がりに着目したカオス理論を用いたReference freeヘルスモニタリングシステム (2010)
  • Author(s): 元村尚幹, 野村泰稔, 古田均
  • Organizer: 第26回ファジィシステムシンポジウム(日本知能情報ファジィ学会)
  • Place of Presentation: 広島大学(広島県)
  • Year and Date: 2010-09-14
• [Presentation] Reference-free health monitoring system using chaos theory (2010)
  • Author(s): H. Furuta, Y. Nomura, K. Nakatsu, H. Hattori, Y. Teramae
  • Organizer: The 5th International Conference on Bridge Maintenance, Safety and Management(IABMAS2010)
  • Place of Presentation: フィラデルフィア,米国
  • Year and Date: 2010-07-14
• [Presentation] Reference-free health monitoring system using chaos theory (2010)
  • Author(s): H.Furuta, Y.Nomura, K.Nakatsu, H.Hattori, Y.Teramae
  • Organizer: The 5^<th> International Conference on Bridge Maintenance, Safety and Management (IABMAS2010)
  • Place of Presentation: フィラデルフィア,米国
  • Year and Date: 2010-07-14
• [Presentation] 常時微動を用いたReference freeヘルスモニタリングシステムの提案 (2010)
  • Author(s): 野村泰稔, 古田均, 中津功一朗, 元村尚幹, 石橋健, 服部洋
  • Organizer: 日本材料学会第59期学術講演会
  • Place of Presentation: 北海道大学(北海道)
  • Year and Date: 2010-05-23