Theoretical and experimental investigation of a tunable vibration absorber with liquid elastic chamber

Yao, Hongxiang; Wang, Xing; Hu, Zhan; Zheng, Gangtie

doi:10.1016/j.jsv.2018.08.042

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Along with this, two other values of

ς_{d}

, namely, 2% and 6%, are also considered. This is to account for the probability of variation of the damping ratio of the present damper from what was determined by Yao et al 47 as here, the liquid interacts with the membrane from both sides of the membrane, whereas in the experiment conducted by Yao et al, 47 the liquid interacts with the membrane from only one side.…”

Section: Control Effectiveness Of Deep Tank Damper With Ssmmentioning

confidence: 71%

“…However, an estimate of the same may be made from the work of Yao et al, 47 who have conducted an experimental investigation on a water‐filled rigid cylindrical chamber with two rubber membranes at both the ends of the cylinder. As reported by them, the damping ratio of the impulsive liquid–membrane interacting system considered for their experiment is 4.37% 47 . So, in the absence of an exact value, the current performance study is conducted with

ς_{d}

equal to 4.37%.…”

Section: Control Effectiveness Of Deep Tank Damper With Ssmmentioning

confidence: 99%

“…As reported by them, the damping ratio of the impulsive liquidmembrane interacting system considered for their experiment is 4.37%. 47 So, in the absence of an exact value, the current performance study is conducted with ς d equal to 4.37%. Along with this, two other values of ς d , namely, 2% and 6%, are also considered.…”

Section: Control Effectiveness Of Deep Tank Damper With Ssmmentioning

confidence: 99%

See 2 more Smart Citations

Enhancing tunability of liquid storage tanks to function as deep tuned liquid dampers by use of a submerged stretched membrane

Konar

Das²,

Ghosh

2022

Structural Contr & Hlth

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This is a study on a deep, liquid-containing tank, such as an overhead water tank on a building, with a vertically submerged stretched membrane (SSM). Here, instead of the sloshing mode, which can become detuned and also affords a low damper mass ratio, the impulsive liquid-membrane interacting system is designed to serve as a dynamic vibration absorber. The requirement of tuning the frequency of the impulsive liquid-membrane interacting system to the structural frequency can be achieved without any imposition on the tank dimensions, which are generally fixed from the tank's functional requirements. The system frequency would remain unchanged so long the membrane would remain submerged below a minimum liquid depth, thereby allowing fluctuation of liquid level within a prescribed range of the tank depth.The formulation for obtaining the frequency of the impulsive liquidmembrane interacting system is derived, using the sub-domain partition approach. It is seen that through suitable adjustment of the design parameters of the membrane, the proposed tank damper can be tuned to both short-period and to long-period structures. Further, the impulsive liquid mass, which otherwise has no role to play in the damping mechanism of a tuned liquid damper (TLD), is here utilized to absorb and dissipate the vibrational energy.Through a time-domain study considering recorded seismic accelerograms, the significant control effectiveness of the proposed damper system is illustrated.Further, the results obtained from the equivalent mechanical model of the structure-damper system are compared with those from a finite element analysis of the fluid-structure system in the ANSYS Workbench environment.

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“…Along with this, two other values of