教師資料查詢 | 類別: 期刊論文 | 教師: 林堉溢 Lin Yuh-yi (瀏覽個人網頁)

標題:Performance of Multiple Tuned Mass Dampers for Suppressing Buffeting Response and Increasing Flutter Speed of Long-S-Pan Bridges
學年89
學期2
出版(發表)日期2001/05/01
作品名稱Performance of Multiple Tuned Mass Dampers for Suppressing Buffeting Response and Increasing Flutter Speed of Long-S-Pan Bridges
作品名稱(其他語言)複頻調質阻尼器對抑制長跨徑橋梁抖振及提高顫振風速的效益分析
著者Lin, Yuh‐yi; Cheng, Chi-ming
單位淡江大學土木工程學系
出版者Taipei : Chinese Institute of Chemical Engineers
著錄名稱、卷期、頁數Journal of the Chinese Institute of Engineers=中國工程學刊 24(3), pp.273-288
摘要Performance of multiple tuned mass dampers (MTMDs) for suppressing buffeting response and increasing the critical wind speed of long-span bridges is examined. In this model, each damper is positioned at a distance from the deck center, and corresponding to it, there is an identical damper in the opposite direction to make this system balance. The vertical and torsional dampers are tuned at the frequencies of the first vertical and torsional structural modes, respectively. The performance of vertical dampers is not related to their locations. However, the performance of torsional dampers is strongly dependent upon their lever arms to provide torsional damping and stiffness. Using both vertical and torsional dampers, the vertical and torsional buffeting responses can be reduced and the stability of the bridge can be increased for either single-degree-freedom flutter or coupled flutter. A parametric analysis is used to study the performance and characteristics of the MTMDs, and based on these results, the design parameters including mass, damping, frequency bandwidth, lever arm, and total number of TMDs are proposed. The results also indicate that the MTMDs, designed with the recommended parameters, are not only more effective but also more robust than the usual single TMD against windinduced vibration.
關鍵字tuned mass dampers;buffeting;flutter;long‐span bridge;調質阻尼器;抖振;顫振;長跨徑橋梁
語言英文
ISSN0253-3839
期刊性質國內
收錄於SCI;EI
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式紙本
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