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Passive and Adaptive Damping Systems for Vibration Mitigation and Increased Fatigue Service Life of a Tied Arch Railway Bridge
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. Swedish Transport Adm Trafikverket, Solna, Sweden.ORCID iD: 0000-0002-8926-2140
Trinity College Dublin.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-5447-2068
2015 (English)In: Journal of Bridge Engineering, ISSN 1084-0702, E-ISSN 1943-5592, Vol. 30, no 9, 748-757 p.Article in journal (Refereed) Published
Abstract [en]

n this article, the use of external damping systems for vibration mitigation of railway bridge dynamics is studied. For a presented case study bridge, the performance of different tuned mass damper systems (TMDs) is studied. During train passage, the change in dynamic characteristics of the bridge may produce a significant detune to a passive TMD. Therefore, routines for a variable stiffness TMD using incremental frequency estimates are developed. Based on numerical simulations, the cumulative fatigue damage is calculated for different damper systems. Due to resonant behavior, the results are found to highly depend on the train speed. Based on an assumed probability density function for the train speed, fragility curves are produced to express the probability of fatigue failure as a function of the number of train passages.

Place, publisher, year, edition, pages
2015. Vol. 30, no 9, 748-757 p.
Keyword [en]
Railway bridge dynamics, tuned mass damper, adaptive control, finite element method, fatigue, fragility curve
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-120211DOI: 10.1111/mice.12116ISI: 000358692800006Scopus ID: 2-s2.0-84937976409OAI: oai:DiVA.org:kth-120211DiVA: diva2:613948
Projects
Long Life Bridges
Funder
EU, FP7, Seventh Framework Programme, 286276
Note

Updated from "Submitted" to "Published". QC 20150901

Available from: 2013-04-02 Created: 2013-04-02 Last updated: 2017-12-06Bibliographically approved

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Andersson, AndreasKaroumi, Raid

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