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Shock and Vibration
Volume 2014, Article ID 393867, 7 pages
http://dx.doi.org/10.1155/2014/393867
Research Article

Influence of Sleepers Shape and Configuration on Track-Train Dynamics

1Krakow University of Technology, Warszawska 24, 31-155 Kraków, Poland
2Warsaw University of Technology, SiMR, Ulica Narbutta 84, Warsaw, Poland
3Institute of Fundamental Technological Research, PAN, Pawińskiego 5B, Warsaw, Poland

Received 12 July 2013; Accepted 10 March 2014; Published 2 July 2014

Academic Editor: Miguel M. Neves

Copyright © 2014 Roman Bogacz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The paper is devoted to the study of dynamical behaviour of railway tracks as continuous systems (rails) supported by periodically spaced sleepers and subjected to moving concentrated loads. Several cases of dynamical problems, where elastically supported beams are excited by a moving concentrated force, are considered. In particular, the study is focused on interactions with structure periodic in the space. Results on one-dimensional structures are extended to the case of a two-dimensional system. The problems of stopping bands, passing bands, and mistuning are also mentioned.