Open AccessSome aspects regarding the roughness of the railway surface and rolling noise at locomotives
Author(s) -
L. M. Babici,
Anca Tudor
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/514/1/012010
Subject(s) - noise (video) , track (disk drive) , surface finish , surface roughness , engineering , acoustics , automotive engineering , range (aeronautics) , structural engineering , mechanical engineering , computer science , aerospace engineering , materials science , physics , composite material , artificial intelligence , image (mathematics)
Railway noise is activated by irregularities on the running surfaces of rails and wheels, these being more significant for the most part of the wavelength and the frequency range of interest. The rolling noise generation mechanism consists of two major structural components: the wheel and rail. The contribution to the noise of the track can be further separated into noise radiation on the rails and in the sleepers. To mitigate the rolling noise, these components must be analysed. To direct and manage mitigation methods within Faurei Railway Testing Center, the rail surface roughness in accordance with EN 15610 was determined in a line of alignment, this being a direct method of measuring the surface roughness of the rail, in association with the rolling noise introduction. In this paper, it is proposed a fractal analysis of the microgeometry of the rail surface, with the possibility of using it as an acoustic parameter.