教師資料查詢 | 類別: 期刊論文 | 教師: 吳重成 Jong-cheng Wu (瀏覽個人網頁)

標題:Implementation of a Feasible Control Design Process Incorporating Robustness Criteria for Wind-Excited High-Rise Buildings
學年94
學期1
出版(發表)日期2006/01/01
作品名稱Implementation of a Feasible Control Design Process Incorporating Robustness Criteria for Wind-Excited High-Rise Buildings
作品名稱(其他語言)
著者吳重成; Wu, Jong-cheng; Lu, Wei-cheng; Hsu, Wen-chung
單位淡江大學土木工程學系
出版者American Society of Civil Engineers (ASCE)
著錄名稱、卷期、頁數Journal of Structural Engineering 132(1), pp.89-101
摘要In this paper, a control design process incorporating robustness criteria is developed specifically for wind-excited high-rise buildings and its feasibility is experimentally verified by implementing on a four degree-of-freedom scaled (1:300) model of a high-rise building through wind tunnel tests in along-wind and across-wind directions. For feasibility toward mature application, considerations in the control design process are made as practical and thorough as possible. The main features of the proposed design process include a suitable identification scheme that can realistically model wind loads and the possible interaction between control devices and structure, as well as a systematic way of incorporating robustness criteria in the controller for reducing tracking error, rejecting noise, attenuating disturbance, and maintaining stability in the presence of system uncertainty. To account for the complexity of wind load in system identification, wind spectrum is obtained through the high-frequency force-balance tests, and the corresponding state space wind model is constructed. The nominal system with the robustness criteria employed is transformed into a generalized H∞H∞ control problem that can be further converted into a set of linear matrix inequalities (LMIs). Consequently, strictly proper output feedback H∞H∞ controllers are thus determined by a simpler solution procedure in searching the solution of LMIs. As observed from experimental results, the performances of proposed H∞H∞ controllers are quite remarkable and comparable to those of classical linear quadratic Gaussian (LQG) controllers. Additionally, the proposed controllers are numerically demonstrated to be more robust than classical LQG controllers under the existence of system uncertainty. This successful implementation shows that the design process and robust controllers proposed are feasible for wind-excited high-rise buildings and the resulting control performance is promising.
關鍵字
語言英文
ISSN0733-9445
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
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