| Issue |
MATEC Web Conf.
Volume 178, 2018
22nd International Conference on Innovative Manufacturing Engineering and Energy - IManE&E 2018
|
|
|---|---|---|
| Article Number | 06008 | |
| Number of page(s) | 6 | |
| Section | Mechanical and Manufacturing Equipment Devices and Instrumentation | |
| DOI | https://doi.org/10.1051/matecconf/201817806008 | |
| Published online | 24 July 2018 | |
Dynamics of a beam on elastic foundation - impact of the bilinear characteristic of the foundation upon the propagation of the bending wave
1
University Politehnica of Bucharest, Department of Railway Vehicles, Splaiul Independenţei 313, Bucharest, Romania
2
S.C. Atelierele CFR Griviţa S.A., 359 Calea Griviţei, Bucharest, Romania
* Corresponding author: trmazilu@yahoo.com
Rail is an important source of noise in the railway traffic and its acoustic power is depending on the rate of decay of vibration. The main characteristic of the track in terms of the vertical elasticity is the so-called track modulus which results from the load-rail deflection curve. In general, this curve is nonlinear and it can be approximated using piecewise linear function with bilinear characteristic. In this paper, the response of a beam on elastic foundation with bilinear characteristic due to constant and harmonic loads is investigated, pointing out the impact of the foundation characteristic on the rail response and the propagation of the bending waves along the track.
© The Authors, published by EDP Sciences, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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