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An investigation of tuned liquid dampers equipped with damping screens under 2D excitation

机译：二维阻尼下装有阻尼屏的液体阻尼器的研究

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This paper reports on the results of a study conducted on tanks partially filled with water, representing tuned liquid dampers (TLD), subjected to both 1D and 2D horizontal excitations. The sloshing response of the water in the tank is characterized by the free surface motion, the resulting base shear force, and evaluation of the energy dissipated by the sloshing water. A 1D non-linear flow model capable of simulating a TLD equipped with damping screens is employed to model a 2D TLD. Application of this particular model requires the assumption that the response is decoupled and can be treated as the summation of two independent 1D TLDs. Results from the non-linear flow model are compared with the 2D experimental shake table test results leading to a validation of the decoupled response assumption. This attractive decoupled response property allows square and rectangular tanks to be used as 2D TLDs, which can simultaneously reduce the dynamic response of a structure in two perpendicular modes of vibration.
机译：本文报告了对部分装满水的储罐进行的研究结果，这些储罐代表承受1D和2D水平激励的调谐液体阻尼器（TLD）。水箱中水的晃动响应的特征在于自由表面运动，所产生的基本剪切力以及对晃动水耗散的能量的评估。使用能够模拟配备阻尼屏的TLD的一维非线性流动模型来建模2D TLD。应用此特定模型需要假设响应已解耦，并且可以将其视为两个独立的1D TLD的总和。将非线性流模型的结果与2D实验振动台测试结果进行比较，从而验证了去耦响应假设。这种有吸引力的解耦响应特性允许将方形和矩形储罐用作2D TLD，从而可以同时降低结构在两个垂直振动模式下的动态响应。

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