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ROLLING NOISE SIMULATION OF A RAILWAY VEHICLE

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Author(s): Traian MAZILU

Journal: Revista Fiabilitate si Durabilitate
ISSN 1844-640X

Volume: 1;
Issue: 11;
Start page: 56;
Date: 2013;
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Keywords: rolling noise | rail | wheel | roughness

ABSTRACT
Rolling noise of the railway vehicles is occurred by the wheel/rail vibration excited bythe rolling surfaces roughness. This paper presents an acoustic model able to predict the rollingnoise level of a railway vehicle. The acoustic model is based on a wheel/rail vibration modelwhich takes into account the structural wheel vibration (Remington model) and the bendingvertical waves of the rail. To this, the track model with an infinite Euler Bernoulli beam elasticallysupported on two layers is applied to simulate the effect of the ballasted track. The influence of therolling surfaces roughness and vehicle velocity on the rolling noise is investigated.
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