Abstract
In this paper, we propose a new concept of tuned sloshing damper with two immiscible fluids of different densities. This concept uses sloshing which occurs at the interface between two fluids to suppress a vibration of structure. In theoretical analysis, governing equations of interfacial sloshing-structure interaction system are derived by Hamilton's principle. Coupled natural frequencies and frequency responses are calculated by these equations. On the other hand, the suppression characteristics of proposed method is researched by analysis and experiment. As a result, it was found that the vibration of structure is effectively suppressed by tuning the natural frequencies of coupled vibration modes.
