Experimental Validation Of An Innovative Procedure For The Rolling Noise Correction

Massimo Viscardi,Stefano Ferraiuolo,Pasquale Napolitano,N Mastorakis,V Mladenov,A Bulucea

doi:10.1051/matecconf/201712505015

Abstract

Among the wide contest of the train vehicles rolling noise evaluation, the aim of the paper is the development, implementation and experimental testing of a new method for roughness calculation according to FprCEN/TR 16891:2015 and the successive evaluation of the correction parameters of the measured rolling noise due to the presence of not compliant rail roughness. It is, in-fact, a very often operative condition, the execution of rolling noise tests over standard in-operation rails that are characterized by roughness profiles very different from standard one as those prescribed within the ISO 3095 procedure. Very often, this difference lead to the presence of an exceeding noise that needs to be evaluated and revised for a correct definition of the phenomena. Within the paper, the procedure implementation is presented and later on verified in operative experimental contest; forecasted and measured data are compared and successively commented.

Highlights

Among the wide contest of the train vehicles rolling noise evaluation, the aim of the paper is the development, implementation and experimental testing of a new method for roughness calculation according to FprCEN/TR 16891:2015 and the successive evaluation of the correction parameters of the measured rolling noise due to the presence of not compliant rail roughness
For every train passage the Sound Pressure Level (SPL) was measured at 7.5 meters away from the center
As shown in this paper the rolling noise is a relevant problem for train sector and must be taken under control

Summary

Introduction

Among the wide contest of the train vehicles rolling noise evaluation, the aim of the paper is the development, implementation and experimental testing of a new method for roughness calculation according to FprCEN/TR 16891:2015 and the successive evaluation of the correction parameters of the measured rolling noise due to the presence of not compliant rail roughness. It is, in-fact, a very often operative condition, the execution of rolling noise tests over standard in-operation rails that are characterized by roughness profiles very different from standard one as those prescribed within the ISO 3095 procedure. In that process are involved two main components: Wheel; Rail; In most country, Italy is one of them, company in charge for wheel is not in charge for rail and vice versa

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Results

Conclusion