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1994”N
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1921-1926•Å
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PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Kenzo TOKI, Tadanobu SATO, Toshihiro MOCHIZUKI, Masaaki YOSHIKAWA, Masahiro KURIMOTO, Kanemasa INABA
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ACTIVE CONTROL OF SEISMIC RESPONSE OF STRUCTURE BY MASS DRIVER SYSTEM
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We developed a new closed-open-loop optimal control algorithm that has been derived by minimizing the sum of quadratic time-dependent performance index and the seismic energy input to the structural system.This new algorithm has been in troduced to a model eight-story building to demonstrate reduction of vibrations caused by medium earthquakes. An active dynamic mass driver system driven by an AC servomotor through a ball screw was developed and installed at the top floor of the model structure. We have obtained the results that there were control paragmeters to maximize control efficiencies for a given structural system,and the proposed closed-open control algorithm could perform the same control efficiencies as the control algorithms based on the regulator theory.
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