Investigation of Tuned Liquid Dampers under Large Amplitude Excitation
Publication: Journal of Engineering Mechanics
Volume 124, Issue 4
Abstract
The behavior of tuned liquid dampers (TLD) was investigated through laboratory experiments and numerical modeling. Large amplitude excitation is the primary focus, as previous research was limited to small amplitude motion. Time histories of the base shear force and water-surface variations were measured by precisely controlled shaking table tests. The results are compared with a numerical model. The random-choice numerical method was used to solve the fully nonlinear shallow-water wave equations. The results suggest that the model captures the underlying physical phenomenon adequately, including wave breaking, for most of the frequency range of interest and over a wide range of amplitude excitation. It was found that the response frequency of tuned liquid dampers increases as excitation amplitude increases, and the TLD behaves as a hardening spring system. To achieve the most robust system, the design frequency for the damper, if it is computed by the linearized water-wave theory, should be set at the value lower than that of the structure response frequency; hence, the actual nonlinear frequency of the damper matches the structural response. It was found that, even if the damper frequency had been mistuned slightly, the TLD always performed favorably; we observed no adverse effect in the wide range of experimental parameters tested in this study.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Chorin, A. J., and Marsden, J. E. (1979). A Mathematical Introduction to Fluid Mechanics. Springer-Verlag, Inc., New York, N.Y.
2.
Fediw, A. A., Breukelman, B., Morris, D. P., and Isyumov, N. (1993). “Effectiveness of a tuned sloshing water damper to reduce the wind-induced response of tall buildings.”Proc., 7th U.S. National Conference on Wind Engineering, Vol. 1, Univ. of California, Los Angeles, Calif., 233–242.
3.
Fujii, K., Tamura, Y, Sato, T., and Wakahara, T.(1990). “Wind-induced vibration of tower and practical applications of tuned sloshing damper.”J. Wind. Eng. and Ind. Aerodyn., 33, 263–272.
4.
Fujino, Y., Sun, L., Pacheco, B. M., and Chaiseri, P.(1992). “Tuned liquid damper for suppressing horizontal motion of structures.”J. Engrg. Mech., ASCE, 118(10), 2017–2030.
5.
Gardarsson, S., and Yeh, H. (1994). “Numerical simulations of bores using the random-choice method.”Proc., 3rd UJNR Tsunami Workshop, Public Works Research Council, Ministry of Construction, Tsukuba, Japan, 13–23.
6.
Glimm, J.(1965). “Solution in the large for nonlinear hyperbolic systems of equations.”Commun. Pure and Appl. Math., 18, 697–715.
7.
Holt, M. (1984). Numerical methods in fluid dynamics. Springer-Verlag KG, Berlin, Germany.
8.
Kareem, A., and Sun, W.-J.(1987). “Stochastic response of structures with fluid-containing appendages.”J. Sound and Vibration, 119(3), 389–408.
9.
Koh, C. S., Mahatma, S., and Wang, C. M.(1994). “Theoretical and experimental studies on rectangular dampers under arbitrary excitations.”Earthquake Engrg. and Struct. Dynamics, 23, 17–31.
10.
Lamb, H. (1932). Hydrodynamics. Cambridge University Press, London, England.
11.
Lax, P. D., and Wendroff, B.(1964). “Difference schemes for hyperbolic equations with high order of accuracy.”Commun. on Pure and Appl. Math., 17, 381–398.
12.
Lepelletier, T. G., and Raichlen, F.(1988). “Nonlinear oscillations in rectangular tanks.”J. Engrg. Mech., ASCE, 114(1), 1–23.
13.
Sun, L. M., Fujino, Y., Pacheco, B. M., and Chaiseri, P. (1991). “Modeling tuned liquid dampers.”Proc., 8th International Conference on Wind Engineering, International Association for Wind Engineering, London, Ontario, Canada, 1883–1894.
14.
Sun, L. (1991). “Semi-analytical modeling of tuned liquid damper (TLD) with emphasis on damping of liquid sloshing,” PhD thesis, University of Tokyo, Tokyo, Japan.
15.
Tamura, Y., Fuji, K., Sato, T., Wakahara, T., and Kosugi, M. (1988). “Wind-induced vibration of tall towers and practical applications of tuned sloshing dampers.”Proc., Symposium on Serviceability of Buildings, University of Ottawa, Ottawa, Canada, 1.
16.
Wakahara, T., Ohyama, T., and Fujii, K. (1992). “Suppression of wind-induced vibration of a tall building using the tuned liquid damper.”J. Wind Eng. and Ind. Aerodyn., 41–44, 1895–1906.
17.
Wakahara, T.(1993). “Wind-induced response of TLD-structure coupled system considering nonlinearity of liquid motion.”Shimizu Tech. Res. Bull., 12, 41–52.
18.
Wakahara, T., Fujino, Y., and Nomura, T.(1996). “Nonlinear sloshing analysis of a circular tuned liquid damper using the Boussinesq equation.”Proc., JSCE, Tokyo, Japan, 549, 125–140.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 124 • Issue 4 • April 1998
Pages: 405 - 413
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Apr 1, 1998
Published in print: Apr 1998
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.