Railway noise results from the contribution of various sources, where rolling noise is considered to be dominant between 50 and 300 km/h. In the effort to reduce this noise source, accurate prediction tools are needed. CRoNoS rolling noise prediction tool takes advantage of the improvements carried out by the scientific community in further developing the theoretical models to derive the structural vibration and noise radiation of railway tracks and wheels.
A previous publication compared CRoNoS with respect to TWINS results in terms of sound power level. Same results were obtained provided that the models implemented on the tools compared were made equivalent.
This paper presents a comparison of CRoNoS predictions with field test pass-by noise results at two different speeds. The model is found to give reliable results. Spectral results analysis show that the absolute difference in each one-third octave band averaged over bands is less than 0.7 dB and all bands have differences of less than 4.6 dB. Global pass-by values are predicted within a margin of 1.8 dBA.
CRoNoS Railway Noise Prediction Tool: Description and Validation Based on Field Tests
Notes Numerical Fluid Mech.
Noise and Vibration Mitigation for Rail Transportation Systems ; Chapter : 63 ; 581-588
2021-04-09
8 pages
Article/Chapter (Book)
Electronic Resource
English
CRoNoS Railway Noise Prediction Tool: Description and Validation Based on Field Tests
British Library Conference Proceedings | 2021
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British Library Online Contents | 1996
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