Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable

Stay cables are one of the vital components of a cable-stayed bridge. Due to their flexible nature, stay cables are vulnerable to external excitation and often vibrate with large amplitude under wind action which leads to the fatigue failure of the cables. To suppress such kind of large amplitude vi...

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Autores principales:	Duy Thao Nguyen, Duy Hung Vo, Md. Naimul Haque
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	two HDR dampers stay cable damping ratio spring factor loss factor cable bending stiffness Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/408f7a09889c4cef80e86a87316d2564
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spelling	oai:doaj.org-article:408f7a09889c4cef80e86a87316d25642021-11-25T16:42:31ZTheoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable10.3390/app1122109852076-3417https://doaj.org/article/408f7a09889c4cef80e86a87316d25642021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10985https://doaj.org/toc/2076-3417Stay cables are one of the vital components of a cable-stayed bridge. Due to their flexible nature, stay cables are vulnerable to external excitation and often vibrate with large amplitude under wind action which leads to the fatigue failure of the cables. To suppress such kind of large amplitude vibration by improving the damping ratio of the cable various dampers such as magnetorheological damper, friction damper; oil damper; or high damping rubber (HDR) damper are utilized and gained popularity over time. This paper focuses on improving the damping ratio of stay cables using a combination of two HDR dampers. First, the theoretical model is formulated considering cable bending stiffness to evaluate the damping effect of cable-HDR dampers system. Then, the impact of various design parameters of HDR dampers on cable damping considering the cable stiffness is performed. The comparative analysis of results shows that the considered parameters such as loss factor, spring factor, and installation location of dampers have much effect on the stay cables damping ratio. Finally, the optimal parameters of the two HDR dampers are proposed for damper design.Duy Thao NguyenDuy Hung VoMd. Naimul HaqueMDPI AGarticletwo HDR dampersstay cabledamping ratiospring factorloss factorcable bending stiffnessTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10985, p 10985 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	two HDR dampers stay cable damping ratio spring factor loss factor cable bending stiffness Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	two HDR dampers stay cable damping ratio spring factor loss factor cable bending stiffness Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Duy Thao Nguyen Duy Hung Vo Md. Naimul Haque Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable
description	Stay cables are one of the vital components of a cable-stayed bridge. Due to their flexible nature, stay cables are vulnerable to external excitation and often vibrate with large amplitude under wind action which leads to the fatigue failure of the cables. To suppress such kind of large amplitude vibration by improving the damping ratio of the cable various dampers such as magnetorheological damper, friction damper; oil damper; or high damping rubber (HDR) damper are utilized and gained popularity over time. This paper focuses on improving the damping ratio of stay cables using a combination of two HDR dampers. First, the theoretical model is formulated considering cable bending stiffness to evaluate the damping effect of cable-HDR dampers system. Then, the impact of various design parameters of HDR dampers on cable damping considering the cable stiffness is performed. The comparative analysis of results shows that the considered parameters such as loss factor, spring factor, and installation location of dampers have much effect on the stay cables damping ratio. Finally, the optimal parameters of the two HDR dampers are proposed for damper design.
format	article
author	Duy Thao Nguyen Duy Hung Vo Md. Naimul Haque
author_facet	Duy Thao Nguyen Duy Hung Vo Md. Naimul Haque
author_sort	Duy Thao Nguyen
title	Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable
title_short	Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable
title_full	Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable
title_fullStr	Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable
title_full_unstemmed	Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable
title_sort	theoretical investigation on the impact of two hdr dampers on first modal damping ratio of stay cable
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/408f7a09889c4cef80e86a87316d2564
work_keys_str_mv	AT duythaonguyen theoreticalinvestigationontheimpactoftwohdrdampersonfirstmodaldampingratioofstaycable AT duyhungvo theoreticalinvestigationontheimpactoftwohdrdampersonfirstmodaldampingratioofstaycable AT mdnaimulhaque theoreticalinvestigationontheimpactoftwohdrdampersonfirstmodaldampingratioofstaycable
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Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable

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