Assessment of vertical track geometry quality based on simulations of dynamic track-vehicle interaction
2009 (English)In: Proceedings of the Institution of mechanical engineers. Part F, journal of rail and rapid transit, ISSN 0954-4097, Vol. 223, no 2, 131-139 p.Article in journal (Refereed) Published
A study assessing vertical track geometry quality based on simulations of dynamic track-vehicle interaction is presented in this article. The dynamic model is composed of track, vehicle, and wheel-rail contact with moving irregularities and is solved in the frequency domain by fast Fourier transform or in the time domain by constructing a filter function based on system identification. Frequency-dependent stiffness and loss factor of railpads are used in this study. Numerical simulations are carried out for a 120 km long track to demonstrate the potential benefits of enhancing track quality assessment by calculating wheel-rail forces.
Place, publisher, year, edition, pages
2009. Vol. 223, no 2, 131-139 p.
track-vehicle dynamic interaction, track geometry
Research subject Järnvägsgruppen - Effektiva tågsystem för persontrafik
IdentifiersURN: urn:nbn:se:kth:diva-31221DOI: 10.1243/09544097JRRT220ISI: 000264722400005ScopusID: 2-s2.0-69249086952OAI: oai:DiVA.org:kth-31221DiVA: diva2:405983
QC 20110324 Conference of the International-Heavy-Haul-Association, Kiruna, SWEDEN, JUN 11-13, 20072011-03-242011-03-112011-05-06Bibliographically approved