Tunable tuned liquid column dampers with multi-cells for wind vibration control of tall buildings

2012 ◽  
Author(s):  
Dong-Ik Kim ◽  
Kyung-Won Min ◽  
Ji-Hun Park ◽  
Hye-Ri Lee ◽  
Jae-Keon Kim ◽  
...  
Keyword(s):  
Vibration Control ◽  
Tall Buildings ◽  
Liquid Column ◽  
Wind Vibration ◽  
Liquid Column Dampers

Low Frequency Vibration Control of the Offshore Fixed Platforms by Using Tuned Liquid Column Damper

2014 ◽  
Author(s):  
Chan Hui Lee ◽  
Heui Won Kim ◽  
Won Ho Joo
Keyword(s):  
Vibration Control ◽  
Low Frequency ◽  
Tall Buildings ◽  
Liquid Column ◽  
Scale Model ◽  
Small Scale ◽  
Tuned Liquid Column Damper ◽  
Low Frequency Vibration ◽  
Design Variables ◽  
Liquid Column Damper

The offshore fixed platforms are confronted with greater wind and wave forces as their installation site moves toward the deep sea, so it is definitely necessary to reduce the low frequency vibration of structures for the safety and comfort of crews. The dynamic dampers are generally used to reduce vibration of structures. Especially, the tuned liquid column damper (TLCD) has been applied to reduce the low frequency vibration of onshore tall buildings. In this paper, the design procedure of TLCD is proposed to control the low frequency vibration of fixed platforms through the simulation and experiment with a small-scale model. The vibration control target is the surge motion of fixed platforms and the major design variables of TLCD are mass and damping ratios. The optimized design variables of TLCD are determined from the calculation of the amplification factor. In the experiment, the effects of mass and damping ratios are considered by changing the breadth of column, the opening ratio and number of the orifices. The results of experiment are found to well agree with the simulation. The 83% of structure vibration level can be reduced by applying the optimized TLCD.

Effectiveness of tuned liquid column dampers for vibration control of towers

1995 ◽  
Vol 17 (9) ◽  
pp. 668-675 ◽  
Author(s):  
T. Balendra ◽  
C.M. Wang ◽  
H.F. Cheong
Keyword(s):  
Vibration Control ◽  
Liquid Column ◽  
Liquid Column Dampers

Semi-active tuned liquid column dampers for vibration control of structures

2001 ◽  
Vol 23 (11) ◽  
pp. 1469-1479 ◽  
Author(s):  
Swaroop K. Yalla ◽  
Ahsan Kareem ◽  
Jeffrey C. Kantor
Keyword(s):  
Vibration Control ◽  
Liquid Column ◽  
Liquid Column Dampers
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