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Meccanica
Erschienen in: Meccanica 6/2017

21.07.2016

Effects of TLCD with maneuverable flaps on vibration control of a SDOF structure

verfasst von: Hamid Pesaran Behbahani, Azlan bin Adnan, Mohammadreza Vafaei, Ong Peng Pheng, Hossein Shad

Erschienen in: Meccanica | Ausgabe 6/2017

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Abstract

Tuned liquid column damper (TLCD) is a class of auxiliary damping device which is used to dissipate vibrational energy of structures when excited by dynamic loading. Damping control of TLCDs is an important parameter to achieve the maximum benefit of TLCDs when attached to the structure. Herein, a new method of controlling damping is proposed by installing maneuverable flaps into TLCD (TLCD + MF). The damping value of the TLCD is controlled by the closing angle of the flaps. This method is simple in concept, more applicable in construction, and it is an effort to make the TLCD more controllable, (i.e. semi-active). Dynamic characteristics of such TLCD + MF system are investigated in this study. It is observed that by increasing the closing angle, the damping ratio of the TLCD + MF system increases. In addition, it is found that the mistuning of frequency becomes ignorable below the closing angle of 50°. The efficiency of the TLCD + MF in reducing response of structures under harmonic excitation is also studied. It is shown that existence of the flaps improves the performance of combined structure and the TLCD + MF system in terms of damping ratio and structural responses. The TLCD + MF system with the closing angle of 50° reduces the acceleration and displacement responses about 20 % more than conventional TLCDs.
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Metadaten
Titel
Effects of TLCD with maneuverable flaps on vibration control of a SDOF structure
verfasst von
Hamid Pesaran Behbahani
Azlan bin Adnan
Mohammadreza Vafaei
Ong Peng Pheng
Hossein Shad
Publikationsdatum
21.07.2016
Verlag
Springer Netherlands
Erschienen in
Meccanica / Ausgabe 6/2017
Print ISSN: 0025-6455
Elektronische ISSN: 1572-9648
DOI
https://doi.org/10.1007/s11012-016-0473-4

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Brief Notes and Discussions

Comment on the paper “Transient MHD free convective flow past an infinite vertical plate embedded in a porous medium with viscous dissipation, Siva Reddy Sheri, R. Srinivasa Raju, Meccanica, DOI 10.1007/s11012-015-0285-y”

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