NDLI: A New Algorithm of Semi-active Friction Dampers for Structures under Earthquakes

Content Provider	IEEE Xplore Digital Library
Author	Qing Liu Li, C.
Copyright Year	2009
Abstract	A new algorithm of semi-active friction dampers (SAFD) is proposed in this paper for controlling the seismic responses of structures, based on the linear quadratic regulator (LQR) control theory. In order to numerically verify the control effectiveness of the proposed algorithm, the time history analysis has been implemented to a seismically excited 3-storey frame structure with the friction dampers (FD). In the numerical simulations, five seismic waves, namely El Centro wave, Hachinohe wave, Kobe wave, Taft wave, and Shanghai artificial wave are taken into consideration, whose peak accelerations are scaled to 0.1gal and 0.3gal, respectively. For the purpose of comparison, the numerical results of the 3-storey frame structure with dampers designed by general semi-active damper control algorithm (referred herein to as the SADCA) are also taken into account. Numerical results demonstrate that the proposed semi-active control algorithm is better than the SADCA under the present five seismic waves. Especially, this new semi-active control algorithm will render higher level of the acceleration response reduction for higher floors of structures under earthquakes.
Starting Page	504
Ending Page	508
File Size	500736
Page Count	5
File Format	PDF
ISBN	9780769537351
DOI	10.1109/FSKD.2009.454
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Damping Regulators Shock absorbers History Friction Earthquakes Friction dampers Control algorithms Structures Control theory Seismic waves Acceleration Semi-active control
Content Type	Text
Resource Type	Article

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