This paper presents an experimental investigation about the dissipation properties of Tuned Sloshing Dampers (TSDs) characterized by different bottom geometries. An experimental campaign on sloped and rounded shaped TSDs is carried out considering a uni-directional harmonic base motion, by varying the water level and the excitation characteristics, i.e. amplitude and frequency. Results are compared with those obtained on a rectangular flat bottom TSD and benchmarked against a classic Tuned Mass Damper (TMD). The present study demonstrates that a TSD with a suitably modified bottom shape can significantly outperform a traditional flat-bottom TSD in terms of maximum amount of dissipated energy and robustness against frequency mistuning.

本文对具有不同底部几何形状的调谐晃荡阻尼器 (TSD) 的耗散特性进行了实验研究。通过改变水位和激励特性，即振幅和频率，在考虑单向谐波基础运动的情况下，对倾斜和圆形 TSD 进行了实验活动。结果与在矩形平底 TSD 上获得的结果进行比较，并以经典的调谐质量阻尼器 (TMD) 为基准。本研究表明，在最大耗散能量和对频率失谐的鲁棒性方面，具有适当修改底部形状的 TSD 可以显着优于传统的平底 TSD。