Effectiveness of variably tuned liquid damper in suppressing dynamic excitation

B. Samali, S. M. Zahrai, Z. Vrcelj, S. Abbasi

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

Tuned liquid damper (TLD) is a special type of auxiliary damping device which relies on the sloshing of a liquid (water) in a container to counteract the forces acting on the structure. In this paper a new kind of TLD with some movable baffles is experimentally studied. These movable baffles change the dynamic characteristics of the TLD, specially frequency and damping. Response of a five storey benchmark building was utilized to investigate the efficiency of variably tuned liquid damper (VTLD) under dynamic excitations. By observing the performance of VTLD this study investigates the effects of probable mistuning by changing the depth of water and frequency ratio as well. The damping ratios of the building in several conditions of baffles angles were evaluated using logarithmic decrement technique. The results show that one can enhance the performance of TLDs by installing some movable baffles and overcome probable mistuning of the TLD.

Original languageEnglish
Title of host publicationIncorporating Sustainable Practice in Mechanics of Structures and Materials - Proceedings of the 21st Australian Conference on the Mechanics of Structures and Materials
Pages297-301
Number of pages5
Publication statusPublished - 2011
Externally publishedYes
Event21st Australasian Conference on the Mechanics of Structures and Materials, ACMSM21 - Melbourne, VIC, Australia
Duration: 7 Dec 201010 Dec 2010

Publication series

NameIncorporating Sustainable Practice in Mechanics of Structures and Materials - Proceedings of the 21st Australian Conference on the Mechanics of Structures and Materials

Conference

Conference21st Australasian Conference on the Mechanics of Structures and Materials, ACMSM21
Country/TerritoryAustralia
CityMelbourne, VIC
Period7/12/1010/12/10

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