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9-2Šª
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1994”N
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1993-1998•Å
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PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Hirokazu lEMURA, Kazuyuki lZUNO, Hisashi TAKAMURA
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DEVELOPMENNT OF THE SELF OSCILATING TMD AND ITS SHAKING TABLE TESTS
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To reduce dynamic response of flexible structures with moving mass . there are passive , active and hybrid control methods. In this study, a 4 D. O. F. flexible and lightly damped structual frame model with and without these control devices are tested under earthquake ground motion generated by a shaking table. From the test with AMD ( active mass damper ) , the variable gain control is found to be effective for wide range of input intensity. And , the SOTMD ( self oscilating tuned mass damper ) which is one of the active TMD is newly developed. Then , the efficiency of 2 control algorisms is compared. It is found that the SOTMD with the most effective control algorisms needs only lO% of the AMD for the same level of dynamic response reduction.
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