An analytical model for describing the effectiveness of deep water type Tuned Liquid Damper (TLD) with submerged nets for suppressing horizontal vibration of structures is proposed. TLD is a damping device for suppressing the vibration of long-period structures such as high-rise buildings, tall towers and the pylons of cable-stayed bridges. The damping force is created by the hydrodynamic force caused by the sloshing of water contained in rectangular tanks located on top of such structures. In this study, the dynamical model for analyzing deep water type TLD (DTLD) where the liquid depth is deep compared with the length of the rectangular tank is proposed. In particular, the effect of hydraulic resistance produced by submerged nets installed in the tank is examined intensively. In the analysis, employing finite amplitude wave theory, the hydrodynamic force and the dissipation energy are calculated by using Galerkin method taking the effect of submerged nets into account. The calculated results thus obtained are compared with experimental results, by which the validity of the modeling methodology is confirmed. Finally, the case in which DTLD with nets is installed on an actual structure is investigated both theoretically and experimentally and the the performance of DTLD is illustrated.
|ジャーナル||American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP|
|出版ステータス||Published - 1994 1 1|
|イベント||Proceedings of the 1994 Pressure Vessels and Piping Conference. Part 1 (of 19) - Minneapolis, MN, USA|
継続期間: 1994 6 19 → 1994 6 23
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