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http://dx.doi.org/10.5000/EESK.2002.6.6.041

μ-Synthesis Controller Design and Experimental Verification for a Seismic-excited MDOF Building  

민경원 (단국대학교 건축공학과)
주석준 ((주)티이솔루션)
이영철 (단국대학교 건축공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.6, no.6, 2002 , pp. 41-48 More about this Journal
Abstract
This study is on the structural control experiment for a small scale three-story building structure employing on active mass damper subjected to earthquake loading. $\mu$-synthesis controllers, which belong to robust control strategies, were designed and their performance were experimentally verified. Frequency-dependent weighting functions corresponding to disturbance input and controlled output were defined and combined to produce optimal $\mu$-synthesis controllers. The experiment result shows 60-70% reduction in RMS responses under the band-limited white noise excitation and 30-45% reduction in peak responses under the scaled earthquake excitations. Good agreement was obtained between the simulations based on the identified mathematical model and experimental results. And the simulations for the system with uncertainties show that the designed controllers are robust within a specified range of uncertainties.
Keywords
$\mu$-synthesis controller; Experimental verification; Robust control;
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