Over deze norm
This Standard specifies a method for characterizing the structural dynamics of a track relative to the track-radiated component of rolling noise. This European Standard describes a method for: - acquiring mechanical frequency-response function data at a track site; - post-processing measured data in order to calculate an estimate of the rates of decay of vibration along the rails in an audible frequency range related to the rolling noise; - presenting this estimate for assessment against lower boundary limits of decay rates. It is applicable to testing the performance of reference track sections for measuring noise from railway vehicles for acceptance test purposes. It is applicable only to open track. The method is not applicable for characterizing the vibration behaviour of track-supporting structures such as bridges or embankments. The method assumes that vibration waves in the rail can be measured as a single propagating vertical bending wave and a single lateral bending wave of the rail acting as a simple beam. Although the track rail does not behave in this way throughout the frequency range covered by the measurement, this simplification allows the "decay rates" to be used an assessment of the dynamic behaviour of the track, which is one of the key parameters influencing rolling noise generation.
|Nederlandse titel||Railtoepassingen - Geluidemissie - Typering van de dynamische eigenschappen van spoor secties voor geluidsmetingen van voorbij rijdende treinen|
|Engelse titel||Railway applications - Noise emission - Characterisation of the dynamic properties of track sections for pass by noise measurements|
|Vervangen door||Normatieve verwijzingen||