Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24762
Title: Seismic response control of frame structures using magnetorheological/electrorheological dampers
Authors: Xu, YL 
Qu, WL
Ko, JM 
Keywords: Control strategies
Frame structure
Seismic response
Smart dampers
Vibration control
Issue Date: 2000
Publisher: John Wiley & Sons
Source: Earthquake engineering and structural dynamics, 2000, v. 29, no. 5, p. 557-575 How to cite?
Journal: Earthquake engineering and structural dynamics 
Abstract: Semi-active control of buildings and structures for earthquake hazard mitigation represents a relatively new research area. Two optimal displacement control strategies for semi-active control of seismic response of frame structures using magnetorheological (MR) dampers or electroheological (ER) dampers are proposed in this study. The efficacy of these displacement control strategies is compared with the optimal force control strategy. The stiffness of brace system supporting the smart damper is also taken into consideration. An extensive parameter study is carried out to find the optimal parameters of MR or ER fluids, by which the maximum reduction of seismic response may be achieved, and to assess the effects of earthquake intensity and brace stiffness on damper performance. The work on example buildings showed that the installation of the smart dampers with proper parameters and proper control strategy could significantly reduce seismic responses of structures, and the performance of the smart damper is better than that of the common brace or the passive devices. The optimal parameters of the damper and the proper control strategy could be identified through a parameter study. Copyright (C) 2000 John Wiley and Sons, Ltd.Semi-active control of buildings and structures for earthquake hazard mitigation represents a relatively new research area. Two optimal displacement control strategies for semi-active control of seismic response of frame structures using magnetorheological (MR) dampers or electrorheological (ER) dampers are proposed in this study. The efficacy of these displacement control strategies is compared with the optimal force control strategy. The stiffness of brace system supporting the smart damper is also taken into consideration. An extensive parameter study is carried out to find the optimal parameters of MR or ER fluids, by which the maximum reduction of seismic response may be achieved, and to assess the effects of earthquake intensity and brace stiffness on damper performance. The work on example buildings showed that the installation of the smart dampers with proper parameters and proper control strategy could significantly reduce seismic responses of structures, and the performance of the smart damper is better than that of the common brace or the passive devices. The optimal parameters of the damper and the proper control strategy could be identified through a parameter study.
URI: http://hdl.handle.net/10397/24762
ISSN: 0098-8847
EISSN: 1096-9845
DOI: 10.1002/(SICI)1096-9845(200005)29:5<557
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