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Assessing track geometry quality based on wavelength spectra and track-vehicle dynamic interaction
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Rail Vehicles. KTH, School of Engineering Sciences (SCI), Centres, The KTH Railway Group.ORCID iD: 0000-0002-2571-4662
2008 (English)In: Vehicle System Dynamics, ISSN 0042-3114, E-ISSN 1744-5159, Vol. 46, no Suppl. S, 261-276 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a study of assessing track geometry quality (longitudinal level and alignment) by the use of dynamic track-vehicle simulations and wavelength spectra analysis. Two simulation models are developed: one is based on the software package GENSYS, which provides realistic simulations of the nonlinear dynamic behaviour of a vehicle running on real track. and (he other one is based on a newly developed linear track-vehicle model. which is Suitable for effectively calculating wheel-rail forces for very long track sections. The linear model. first proposed in 11,21 to assess vertical track geometry quality (longitudinal level), is extended in the present paper to simulate lateral track-vehicle dynamic interaction and, thus, to assess lateral track geometry quality (alignment) as well. Numerical results are presented to compare the simulation results with online measurement and to demonstrate the possibilities of enhancing track quality assessment and maintenance by simulations of track-vehicle interaction.

Place, publisher, year, edition, pages
2008. Vol. 46, no Suppl. S, 261-276 p.
Keyword [en]
track geometry quality, track-vehicle interaction, wavelength spectra
National Category
Vehicle Engineering
Research subject
Järnvägsgruppen - Effektiva tågsystem för persontrafik
Identifiers
URN: urn:nbn:se:kth:diva-31252DOI: 10.1080/00423110801935871ISI: 000263476500021Scopus ID: 2-s2.0-51449106524OAI: oai:DiVA.org:kth-31252DiVA: diva2:405586
Note
QC 20110323 20th Symposium of the International-Association-for-Vehicle-System-Dynamics, Berkeley, CA, AUG 13-17, 2007Available from: 2011-03-23 Created: 2011-03-11 Last updated: 2017-12-11Bibliographically approved

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Berg, Mats

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