Abstract
An equivalent Tuned Mass Damper (TMD) model of circular Tuned Liquid Damper (TLD) has been developed to understand the nonlinear vibration characteristics of circular TLD based on a TMD analogy. The equivalent linearized TMD parameters of circular TLD were estimated using the experimental data of the circular TLD fluid dynamic force obtained from shaking table experiments under various excitation amplitudes. Those models were defined as the functions of dimensionless amplitude of the excitation to the TLD. The proposed model of circular TLD can make clear the relationship between the design parameters such as the radius, the depth of TLD and optimal tuning parameters as a dynamic damper.
