Over deze norm
This draft European Standard specifies a direct method for characterizing the surface roughness of the rail associated with rolling noise ("acoustic roughness"), in the form of a one-third octave band displacement spectrum. This standard describes a method for: - data acquisition; - measurement data processing in order to estimate the one-third octave displacement spectrum ; - presentation of this estimate for comparison with upper limits of acoustic roughness; - comparison with a given limit in terms of one-third octave band wavelength spectrum. It is applicable for: - performance testing of reference track sections for the measurement of noise emitted by railway vehicles over a period of three months from the test, for acceptance testing purposes; - quality approval of the rail surfaces only in the case where the acoustic roughness is regarded as an established approval criterion. It is not applicable: - to the measurement of rail roughness using an indirect method; - to the measurement of combined wheel-rail roughness; - to the analysis of the effect of wheel-rail interaction, such as a "contact filter"; - to the approval of rail grinding operations, except for those where the acoustic roughness (and not the corrugation) is an established approval criterion; - to the characterization of track geometry. Testing and approval of measuring apparatus are not part of the scope of this standard.
|Nederlandse titel||Railtoepassingen - Geluidemissie - Meting van de railruwheid gerelateerd aan rolgeluidgeneratie|
|Engelse titel||Railway applications - Noise emission - Rail roughness measurement related to rolling noise generation|
|Vervangen door||Normatieve verwijzingen||