Wind Attack Angle Effect on High-Rise Building with Active Control

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题名:	Wind Attack Angle Effect on High-Rise Building with Active Control
作者:	Wu, Jong-Cheng;Cheng, Liang-Yi
贡献者:	淡江大學土木工程學系
关键词:	風力;攻角;主動控制;高層建築物;渦流散逸;Wind Force;Attack Angle;Active Control;High-Rise Building;Vortex Shedding
日期:	2002-08
上传时间:	2013-04-08 13:47:29 (UTC+8)
出版者:	臺北市：中華民國結構工程學會
摘要:	Wind loading on the high-rise buildings is complicated in nature, especially when the across-wind motion caused by the aero-elastic vortex shedding effect is considered. In this paper, a 4 degree-of- freedom scaled (1:300) model of a high-rise building equipped with active mass driver (AMD) is constructed on a wind tunnel to experimentally verify the applicability of active control for wind- induced motion under varied attack angle of wind. A systematic system identification scheme simply based on the input/output relation is proposed for the construction of nominal systems. The control law is determined based on the Linear Quadratic Gaussian (LQG) theorem in which a dynamic output feedback equation with acceleration feedback is formed for practical implementation. The experimental results show that the performance of the active controller following the design process proposed is remarkable in reducing the responses of high-rise buildings under different attack angle of wind. Furthermore, despite that the nominal system contains system uncertainty, the performance of LQG control remains quite promising and robust.
關聯:	第六屆結構工程學術研討會論文集=Proceedings of the 6th National Conference on Structural Engineering, 10p. Proceedings of the 6th National Conference on Structural Engineering, taitung, pp.6-15
显示于类别:	[土木工程學系暨研究所] 會議論文

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