An analytical model for describing the effectiveness of a deepwater-type cylindrical tuned liquid damper (TLD) with a submerged net for suppressing horizontal vibration of structures is first proposed. In this study, we performed calculations to estimate the effectiveness of a deepwater-type cylindrical TLD based on a proposed dynamical model and compared with experimental results obtained by shaking table experiments and free oscillation tests. In particular, the effect of hydraulic resistance produced by a submerged net and the liquid depth ratio (the ratio of the liquid depth to the diameter of the cylindrical tank) are examined intensively. In the analysis, employing finite amplitude wave theory and Galerkin method in the case of cylindrical tank, we obtained hydrodynamic forces and the free surface elevations. Then, combining the hydrodynamic forces with the equation of motion of the structure, damped transient responses were calculated. The calculated results thus obtained were compared with the experimental results, by which the validity of the modeling methodology was confirmed. [S0094-9930(00)00101-3]
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February 2000
Technical Papers
Dynamical Modeling of Deepwater-Type Cylindrical Tuned Liquid Damper With a Submerged Net
Shigehiko Kaneko,
Shigehiko Kaneko
Department of Mechanical Engineering, The University of Tokyo, Tokyo, Japan
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Yasuo Mizota
Yasuo Mizota
Bridgestone Co., Ltd., Tokyo, Japan
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Shigehiko Kaneko
Department of Mechanical Engineering, The University of Tokyo, Tokyo, Japan
Yasuo Mizota
Bridgestone Co., Ltd., Tokyo, Japan
Contributed by the Pressure Vessels and Piping Division and presented at the Pressure Vessels and Piping Conference (Joint w/ICPVT), Montreal, Quebec, Canada, July 21–26, 1996, of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the PVP Division, September 17, 1998; revised manuscript received October 26, 1999. Technical Editor: S. Y. Zamrik.
J. Pressure Vessel Technol. Feb 2000, 122(1): 96-104 (9 pages)
Published Online: October 26, 1999
Article history
Received:
September 17, 1998
Revised:
October 26, 1999
Citation
Kaneko , S., and Mizota , Y. (October 26, 1999). "Dynamical Modeling of Deepwater-Type Cylindrical Tuned Liquid Damper With a Submerged Net ." ASME. J. Pressure Vessel Technol. February 2000; 122(1): 96–104. https://doi.org/10.1115/1.556156
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