Vibration Source Localization along Railway Tracks
2012 (English)In: Noise and Vibration Mitigation for Rail Transportation Systems / [ed] T. Maeda et al., Berlin: Springer, 2012, 267-274 p.Chapter in book (Refereed)
Ground-borne vibration from railway traffic is an increasing problem in urbanized areas and measures are often needed to minimize its effects on the environment. An important question when dealing with railway problems is to identify the source(s) of vibration emitted along the railway track. Once this information is available, it is often possible to mitigate the problem by improving stiffness of the railway track and/or to upgrade worn-out or damaged rail sections and turnouts. This paper describes a method which makes it possible to determine the locations of track sections which are likely to emit strong ground vibration. A purpose-built track-bound vehicle which can be vibrated continuously at different frequencies can identify track sections having unfavorable dynamic foundation conditions. A theoretical concept is proposed to calculate the potential of energy emission from the vehicle moving along the track. Further, an innovative method is presented which makes it possible to determine the location of vibration sources by measurement of ground vibrations from existing railway traffic. This information can be used to determine the location of track sections where remedial measures are needed. Results are presented, illustrating application of the concepts, which can also be applied to other types of vibration problems.
Place, publisher, year, edition, pages
Berlin: Springer, 2012. 267-274 p.
, Notes on Numerical Fluid Mechanics and Multidisciplinary Design, ISSN 1612-2909 ; 118
Geotechnical Engineering Infrastructure Engineering
IdentifiersURN: urn:nbn:se:kth:diva-53081DOI: 10.1007/978-4-431-53927-8_31ScopusID: 2-s2.0-83455211333ISBN: 978-4-431-53926-1OAI: oai:DiVA.org:kth-53081DiVA: diva2:468877
QC 201201092011-12-212011-12-212012-01-09Bibliographically approved