The dynamic properties of a tuned liquid damper using an equivalent amplitude dependent tuned mass damper

In this paper, shaking table tests are conducted to determine the dynamic characteristics of a TLD at various excitation amplitudes. The results are used to describe the TLD as an equivalent amplitude dependent tuned mass damper (TMD). This model is obtained by maintaining energy dissipation equivalence. The amplitude dependent TMD model allows the use of existing mathematical tools to describe the response of a structure-TLD system. As the effects of a TMD on a structure are well understood, the developed model also provides insight into the performance of a TLD. Forced vibration tests are conducted on a structure-TLD system to verify the numerical model. Results indicate that an amplitude dependent TMD model can correctly simulate the response of a structure-TLD system.