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External damping of stay cables using adaptive and semi-active vibration control
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-8926-2140
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-5447-2068
(Trinity College Dublin)
2013 (English)In: Proceedings of the 8th International Cable Supported Bridge Operators Conference, Edinburgh, Scotland, 2013Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, the performances of different external damping systems for stay cables are studied based on numerical simulations. Two types of dampers have been analysed; a near anchorage viscous damper and a tuned mass damper (TMD) mounted near the midspan of the stay cable. For the passive case, both dampers are tuned to the fundamental mode of vibration of the cable. The optimal viscous damping for the near anchorage damper is determined based on well-known equations for a taut string. For the TMD, parametrical studies have been performed to determine the optimal damping ratio as function of the damper mass. The resulting vibration mitigation from the two systems are also studied for higher modes of vibration and the potential increase in performance using an adaptive or semi-active vibration control system is studied.

Place, publisher, year, edition, pages
Edinburgh, Scotland, 2013.
Keyword [en]
Stay-cable, External damping system, TMD, Semi-active control, Finite element analysis
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-120213OAI: oai:DiVA.org:kth-120213DiVA: diva2:613951
Conference
ICSBOC, The 8th International Cable Supported Bridge Operators' Conferene; Sheraton Grand Hotel & Spa, Edinburgh, 3-5 June 2013
Projects
Long Life Bridges
Funder
EU, FP7, Seventh Framework Programme, 286276
Note

QC 20140609

Available from: 2013-04-02 Created: 2013-04-02 Last updated: 2014-06-09Bibliographically approved

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fulltext(215 kB)707 downloads
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Andersson, AndreasKaroumi, Raid

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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