| 요약2 |
The behavior of the Tuned Liquid Damper (TLD) which has been widely used for mitigating structural vibration is generally modeled by linear wave theory and its vibration control performance is evaluated using linear Tuned Mass Damper (TMD) analogy. However, some previous studies showed that the properties of the TLD such as natural frequency and damping ratio were dependent on the excitation amplitude. In this study, the dynamic nonlinear characteristics of the TLD are investigated by shaking table test with varying excitation amplitude. The natural frequency, damping ratio, and effective mass are obtained through curve-fitting of the transfer function from the table acceleration to the base shear. |