The interaction of the wheel and rail is the main source of railway noise over a wide speed range. The relationship between wheel and rail noise on the overall level depends on the pass-by speed, with the dominance of noise from the rail at low speeds and the reverse relationship at higher speeds. Therefore, as part of the work the issue of analyzing the characteristic features of the acoustic signal generated on a selected section of the railway line from three different passenger trains TLK, Stadler and Pendolino was taken. The spectra of LEQ levels and their spread in 1/3 octave bands and spectral moments were adopted as the main distinctive features. The degree of aggregation of permanent features assigned to the track and variable features characteristic for passing-by trains were analysed. There were also tested their usefulness in the assessment of the impact of noise from wheels and rails on the overall level of railway noise from the tested units. The obtained results confirm the usefulness of the features based on the analysis of the spread of results in 1/3 octave bands in differentiating noise sources from rail and wheel, with slightly less usefulness of spectral moments.
REFERENCES(21)
1.
Arteaga IL. Rolling noise in road and rail transportation systems. Internoise 2019, Madrid, June 16-19.
Kohrs T, Kirchner KR, Fast D, Vallesspin A, Sapena J, Garcia AG, Martner O. Sound propagation and distribution around typical tran carbody structures. Conference Proceedings, Euronoise 2018.
Kukulski B, Wszołek T, The research on impulsive events in railway noise generated during passage through a railroad switch. /Archives of Acoustics, 2017; 42(3):441-447. https://dx.doi.org/10.1515/aoa....
Letourneaux Fabien, Olivier Coste, Cyril Mellet, and Pascal Fodiman. Environmental Railway Noise: a Source Separation Measurement Method for Noise Emissions of Vehicles and Track. In Forum Acusticum. Sewilla, 2002.
Thompson DG. Squicciarini J, Zang Artega IL, Zea E, Dittrich M, Jansen E, Arcas K, Cierco E, Magrans FX, Malkoun A, Iturritxa E, Guiral A, Stangl M, Schlainzer G, Lopez BM, Chaufor C, Wandell J. Assessment of masurent-based methods for separating wheel and track contributions to railway rolling noise. Applied Acoustics. 2018; 140:48-62. https://doi.org/10.1016/j.apac....
Verheijen E, Paviotti M. VTN. A validated method to separate track and vehicle noise and to assess noise reduction measures. In World Congress Railway, Research. Edinburgh, 2003.
Vogel F, Holm S, Ole Christian Lingjirde. Spectral moments and time domain representation of photoacoustic signals used for detection of crude oil in produced water. Oslo, Norwegia, 2001.
Wszołek T, Tadeusiewicz R. Extraction of the vector of distinctive features for the acoustic signal from corona in overhead power lines, Archives of Acoustics. 2005;30(4):237,240.
Wu TX, Thompson DJ. On rolling noise generation due to wheel/track parametric excitation. Journal of Sound and Vibration. 2006; 293: 566-574 https://doi.org/10.1016/j.jsv.....
Zea E, Manzari L, Artega IL, Squicciarini G, Thomson D. Separation of track contribution to pass-by noise by near-field array techniques. International Conress of Acoustics, Buenos Aires 5-9 September 2016, Paper ICA2016-813.
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.