跳到主要內容

簡易檢索 / 詳目顯示

回結果列表
研究生： 顏瑞興
Rui-Xing Yan
論文名稱： 多重隨機遞減法於現地橋梁微振量測之應用
Application of Multiple Random Decrement Method in Existing Bridge Ambient Vibration Measurement
指導教授： 王仲宇
Chung-Yue Wang
口試委員:
學位類別： 碩士
Master
系所名稱： 工學院 - 土木工程學系
Department of Civil Engineering
論文出版年： 2022
畢業學年度： 110
語文別： 中文
論文頁數： 151
中文關鍵詞： 隨機遞減法 、多重隨機遞減法 、微振量測 、現地橋梁
相關次數： 點閱：11  下載：0 
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報

    • 許多土木結構健康監測與系統識別的研究利用微振量測來進行，不過因為缺乏輸入訊號而只能得到結構的輸出反應，所以必須開發只需利用輸出訊號的特殊系統識別技巧，即現地量測模態分析。然而微振量測所能得到的結構輸出訊號並非自由振動反應，因此目的在從系統隨機振動反應取得自由衰減反應的隨機遞減法。近年針對鋼纜之振態參數識別，提出一個稱為多重隨機遞減法的改良技巧，就是將隨機遞減法一次次重複應用，使集中的外力完全濾除，後續利用快速傅立葉轉換(Fast Fourier Transform)來分析出自然振動頻率、模態振型及模態阻尼比，近年來微振現地量測模態分析多用於房屋結構上，因次本文將套用於現地橋梁(碧潭人行吊橋、新長虹大橋、太魯閣大橋及新豐平大橋)上做使用，實行現地量測前，也會利用簡支梁來進行隨機遞減法及快速傅立葉轉換之分析。

    Many studies on health monitoring and system identification of civil structures use ambient vibration measurement. However, due to the lack of input signal, only the output response of the structure can be obtained. It is necessary to develop special system identification techniques that only use the output signal. That is ambient vibration measurement model analysis. The structural output signal obtained by the ambient vibration measurement is not the free vibration response, so the purpose is obtain the random decrease method of the free decay response from the random vibration response of the system. In recent years, an improved technique called the multiple random decreasing method is proposed for the identification of the vibration parameters of the cable. It is to repeat the application of the random decreasing method again and again, so thoroughly filter out concentrated external forces. Subsequent use of Fast Fourier Transform to analyze the natural frequency, mode shape and damping ratio. In recent years, the modal analysis of ambient vibration measurement is used in building structures. Therefore, this article will be applied to the existing bridges. Before performing the on-site measurement, the simply supported beam will also be used for the analysis of the random decreasing method and the Fast Fourier Transform.

    摘要 i Application of Multiple Random Decrement Method in Existing Bridge Ambient Vibration Measurement ii 致謝 iv 目錄 v 表目錄 vii 圖目錄 viii 符號說明 xviii 第一章 緒論 1 1-1研究目的與動機 1 1-2本文內容與架構 2 第二章 文獻回顧 3 第三章 數據分析理論 6 3-1傳統隨機遞減法 6 3-1-1傳統隨機遞減法 6 3-1-2影響N值參數 8 3-2多重隨機遞減法 10 第四章 簡支梁實驗數據分析 12 4-1實驗步驟規劃 12 4-2數據分析 16 4-2-1實驗一 16 4-2-2實驗二 19 第五章 現地量測數據分析 22 5-1碧潭吊橋 22 5-1-1實驗步驟規劃 22 5-1-2 實驗一 24 5-1-3 實驗二 30 5-1-4 實驗三 36 5-1-5 實驗四 42 5-1-6 實驗五 48 5-2 新長虹橋 52 5-2-1 實驗步驟規劃 52 5-2-2 實驗一 53 5-2-3 實驗二 62 5-2-4 實驗三 70 5-3太魯閣大橋 79 5-3-1實驗步驟及規劃 79 5-3-2實驗一 80 5-3-2實驗二 89 5-3-3實驗三 97 5-3-4實驗四 106 5-3-5實驗五 114 第六章 結論與建議 124 參考文獻 128

    1. A. COLE, JR., ON-THE-LINE ANALYSIS OF RANDOM VIBRATIONS , AIAA Paper No. 68-288,1968
    2. A. COLE, JR., Method and apparatus for measuring the damping characteristics of a structure, United States Patent Office,1971
    3. J. K. Vandiver, A. B. Dunwoody, R. B. Campbell, and M. F. Cook, A Mathematical Basis for the Random Decrement Vibration Signature Analysis Technique, Journal of Mechanical Design, 1982
    4. N. E. Bedewi, The Mathematical Foundation of the Auto and Cross-random Decrement Techniques and the Development of a System Identification Technique for the Detection of Structural Deterioration, Ph. D. Thesis, University of Maryland, College Park, 1986
    5. 黃炯憲,蔡益超,葉錦勳, “隨機遞減法在建築物微振時間域系統參數識別之應用,”中國土木水利工程學刊,第 10 卷,第 3 期, pp. 537-547, 1998.
    6. Huang, C. S. , C. H. Yeh, "Some Properties of Randomdec Signatures," Mechanical Systems and Signal Processing, vol. 13(3), pp. 491-507, 1999.
    7. hiu Jen Ku, Jack Edward Cermak, and Li-Shu Chou, Random decrement based method for modalparameter identification of a dynamic system using acceleration responses, Elsevier,2006
    8. Chiu Jen Ku, Jack Edward Cermak, and Li-Shu Chou, Biased Modal Estimates from Random Decrement Signatures of Forced Acceleration Responses, Vol. 95, No. 6, pp. 389-410,2007
    9. John Christian Asmussen, Modal Analysis Based on the Random Decrement Technique, Aalborg University,1997
    10. R.Morsy, H.Marzouk, and X.Gu, The Use of Multichannel Random Decrement for Monitoring of Concrete Bridge Girders,SMAR,2015
    11. Yi-Qiang Xiang, Xiao-Wei Ye and Ya-Kun Jia, Application of the Random Decrement Technique in Damage Detection under Moving Load,Applied sciences, 2018
    12. Zhiwen Huang, Yanzhe Li, Xugang Hua, Zhengqing Chen and Qing Wen, Automatic Identification of Bridge Vortex-Induced Vibration Using Random Decrement Method, Applied sciences, 2019
    13. 許木勝, 根據微振訊號應用多重隨機遞減法進行房屋結構之振態參數識別,國立雲林科技大樓,碩士論文,2008
    14. 呂宏猷, 結構微振資料之模態參數識別,國立成功大學,碩士論文,2007
    15. 吳文華,陳冠穎,強效隨機遞減法之開發及其於各型結構系統識別之應用,國立雲林科技大學營建工程系暨研究所,2013
    16. 吳文華,王勝威,強效隨機遞減法之開發及其於各型結構系統識別之應用II,國立雲林科技大學營建工程系暨研究所,2014
    17. 吳文華,廖釗銨,以鋼纜微振量測資料應用多重隨機遞減法進行斜張橋鋼纜與橋體之振態參數識別,國立雲林科技大學營建工程系暨研究所,2007
    18. Anil K.Chopra,Dynamica of structures: Theory and Applications to Earthquake Engineering, Second Edition,2005
    19. 傅志方,華宏星,模態分析理論與應用,上海交通大學出版
    20. Jimin He and Zhi-Fang Fu, Modal Analysis, Planta tree, 2001
    21. Julius S. Bendat and Allan G. piersol, Random data analysis and measurement procedures second Edition,1986
    22. 陳建全, 台灣 GPS 連續觀測站高程變動受環境因子影響之研究,碩士論文,2003
    23. 曹松華, 隨機遞減法與非定長環境振動模態參數識別之應用, 國立成功大學航太工程學系, 2004

    QR CODE
    :::