頁籤選單縮合
題 名 | Identification of Modal Parameters from Ambient Vibration Data by Modified Eigensystem Realization Algorithm |
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作 者 | Chiang, Dar-yun; Lin, Chang-sheng; Su, Fang-he; | 書刊名 | Journal of Aeronautics, Astronautics and Aviation. Series A |
卷 期 | 42:2 2010.06[民99.06] |
頁 次 | 頁79-85 |
分類號 | 447.553 |
關鍵詞 | Eigensystem realization algorithm with data correlation; ERA/DC; Correlation technique; Stationary ambient vibration; |
語 文 | 英文(English) |
英文摘要 | In the present paper, we propose a modification to the Eigensystem Realization Algorithm with Data Correlation (ERA/DC) for modal-parameter identification of structural systems subjected to stationary white-noise ambient vibration. By setting up a correlation-function matrix of stationary responses and introducing an appropriate factorization of the matrix, modal parameters of a system could then be effectively identified through the singular-value decomposition and eigenvalue analysis. Through numerical simulations, effectiveness and robustness of the proposed identification method is demonstrated. |
本系統中英文摘要資訊取自各篇刊載內容。