Method for the error-free identification of noise sources of moving components of a rail vehicle for the calculation of the total sound level

摘要

The invention relates to a volume measurement of a wheel-rail contact of a train and / or freight car by a transfer path analysis on the moving train. First, the transfer functions of the various transfer paths (airborne and structure-borne noise) are determined experimentally. Subsequently, the structure-borne sound is detected separately by the wheel-rail contact and the airborne sound (based on the transfer path analysis) that is emitted by this contact is simulated. As a result, the resulting airborne contribution as well as the resulting overall sound contribution can be determined accurately and then acoustically evaluated. Moreover, the invention relates to a system and a use for a noise monitoring and / or a noise-dependent train path pricing system.