Numerical studies on the application of tuned liquid dampers with screens to control seismic response of structures

2011 ◽  
Vol 20 (2) ◽  
pp. 121-150 ◽  
Author(s):  
A. M. Halabian ◽  
M. Torki
Keyword(s):  
Seismic Response ◽  
Tuned Liquid Dampers ◽  
Numerical Studies ◽  
Liquid Dampers

On the Seismic Performance of Elevated Water Tanks and their Control Using TLDs

2013 ◽  
Vol 569-570 ◽  
pp. 270-277 ◽  
Author(s):  
Aparna Dey Ghosh ◽  
Soumi Bhattacharyya ◽  
Anuja Roy
Keyword(s):  
Water Tank ◽  
Seismic Vibration ◽  
Vibration Mitigation ◽  
Tuned Liquid Dampers ◽  
Numerical Studies ◽  
Elevated Water ◽  
Fluctuating Water Level ◽  
And Performance ◽  
Liquid Dampers ◽  
Water Tanks

The post-earthquake function of elevated water tank structures so as respond to the civil water requirements is of extreme significance. These structures are, however, extremely vulnerable to seismic conditions and there has been substantial damage/failure of several such structures during major earthquakes. A review of the damage and performance of some elevated water tanks subjected to earthquakes is presented in this paper. An investigation is also made on the seismic vibration control of elevated water tank structures by using Tuned Liquid Dampers (TLDs). A frequency domain formulation for the transfer function of the elevated water tank with attached TLDs is developed. Numerical studies on a reinforced concrete elevated water tank with shaft type support are carried out. The effect of detuning on the performance of the TLDs due to the change in the structural frequencies resulting from the fluctuating water level in the water tank is also examined. Results indicate that it is possible to design a fairly robust and effective TLD system for the seismic vibration mitigation of the considered elevated water tank.

Experimental and Numerical Studies of Axisymmetric Tuned Liquid Dampers

2015 ◽  
Author(s):  
Bernard Molin ◽  
Fabien Remy ◽  
Julien Bonnici
Keyword(s):  
Test Bench ◽  
Added Mass ◽  
Analytical Models ◽  
Hydrodynamic Coefficients ◽  
Earthquake Excitation ◽  
Tuned Liquid Dampers ◽  
Numerical Studies ◽  
Liquid Dampers ◽  
Experimental Values ◽  
Good Agreement

Tuned Liquid Dampers (TLDs) have proved their efficiency to mitigate the vibratory response of slender buildings under wind or earthquake excitation. Simple semi-analytical models are proposed here to derive the hydrodynamic coefficients (added mass and damping) of axisymmetric TLDs fitted with circular or radial perforated screens. Comparisons are made with experimental values obtained with an Hexapode test bench. Good agreement is observed.

scholarly journals Tuned liquid dampers simulation for earthquake response control of buildings

2013 ◽  
Vol 12 (2) ◽  
pp. 1007-1024 ◽  
Author(s):  
T. Novo ◽  
H. Varum ◽  
F. Teixeira-Dias ◽  
H. Rodrigues ◽  
M. Falcao Silva ◽  
...  
Keyword(s):  
Earthquake Response ◽  
Response Control ◽  
Tuned Liquid Dampers ◽  
Liquid Dampers

Real-time hybrid aeroelastic simulation of wind turbines with various types of full-scale tuned liquid dampers

Wind Energy ◽  
2018 ◽  
Vol 22 (2) ◽  
pp. 239-256 ◽  
Author(s):  
Zili Zhang ◽  
Biswajit Basu ◽  
Søren R.K. Nielsen
Keyword(s):  
Real Time ◽  
Wind Turbines ◽  
Full Scale ◽  
Tuned Liquid Dampers ◽  
Liquid Dampers

Tuned liquid dampers with porous media

2018 ◽  
Vol 167 ◽  
pp. 55-64 ◽  
Author(s):  
Wen-Huai Tsao ◽  
Wei-Shien Hwang
Keyword(s):  
Porous Media ◽  
Tuned Liquid Dampers ◽  
Liquid Dampers
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