DIN EN 15461

Abstract

This European Standard specifies a method for characterizing the dynamic behaviour of the structure of a track relative to its contribution to the sound radiation associated with the rolling noise. <br>This European Standard describes a method for: <br>a) acquiring data on mechanical frequency response functions on a track; <br>b) processing measurement data in order to calculate an estimate of the vibration decay rates along the rails in an audible frequency range associated with the rolling noise; <br>c) presenting this estimate for comparison with the lower limits of the decay rates. <br>It is applicable for evaluating the performance of sections of reference tracks for measuring railway vehicle noise within the framework of official approval tests. <br>The method is not applicable for characterizing the vibration behaviour of tracks on loadbearing structures such as bridges or embankments.