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タイトル: 高精度振動数推定法による橋梁の損傷予測
その他のタイトル: Bridge-Damage Detection by the High Accurate Structural Frequency Estimation Method
著者: 岡林, 隆敏 / 大岩根, 健吾 / 木村, 啓作 / 奥松, 俊博
著者(別表記) : Okabayashi, Takatoshi / Oiwane, Kengo / Kimura, Keisaku / Okumatsu, Toshihiro
発行日: 2004年 7月
引用: 長崎大学工学部研究報告 Vol.34(63) p. 71-76, 2004
抄録: The difference of the natural frequency, which is caused by the change of structural condition such as deterioration and damage, is expected extremely small. The authors developed the high accurate structural frequency estimation method, which consists of AR model by ambient vibration. The method is applied to detect structural deterioration caused by damage of the bridge member. In this paper, series of simulation are performed in order to examine the method's efficiency. Consequently, we had a conclusion that the system can estimate the structural frequency with accuracy of 1/100 Hz. Also, we realized to evaluate the structural damage by the ratio of the difference of frequency and a standard deviation of estimated structural frequencies.
URI: http://hdl.handle.net/10069/15085
ISSN: 02860902
資料タイプ: Departmental Bulletin Paper
出現コレクション:第34巻 第63号

引用URI : http://hdl.handle.net/10069/15085



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