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http://dx.doi.org/10.12989/sss.2012.10.6.573

Optimal shape of LCVA for vibration control of structures subjected to along wind excitation  

Park, Ji-Hun (Department of Architectural Engineering, University of Incheon)
Min, Kyung-Won (Department of Architectural Engineering, Dankook University)
Publication Information
Smart Structures and Systems / v.10, no.6, 2012 , pp. 573-591 More about this Journal
Abstract
In this study, a procedure to design an optimal LCVA that maximizes the equivalent damping ratio added to the primary structure subjected to along-wind excitation is proposed. That design procedure does not only consider the natural frequency and damping ratio of the LCVA, but also the proportion of the U-shaped liquid, which is closely related to the participation ratio of the liquid mass in inertial force. In addition, constraints to ensure the U-shape of the liquid are considered in the design process, so that suboptimal solutions that violate the optimal tuning law partly are adopted as a candidate of the optimal LCVA. The proposed design procedure of the LCVA is applied to the control of the 76-story benchmark building, and the optimal proportions of the liquid shape under various design conditions are compared.
Keywords
liquid column vibration absorber; vibration control; equivalent damping ratio;
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Times Cited By KSCI : 1  (Citation Analysis)
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