DEUFRAKO 1 - Microphone array techniques used to locate acoustic sources on ice, TGV-A and transrapid 07
HAMET ; PALLAS ; SCHMITZ
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
HAMET ; PALLAS ; SCHMITZ
Résumé / Abstract
A co-operation program on guided transports has been set up by the French and German administrations and railway companies (Deufrako program). One part of this program concerns the noise emission of trains at very high speeds where it is inferred that aerodynamic sources can become predominant. It was decided to evaluate the contributions of the different noise sources which occur on the French and German high speed trains and to elaborate noise emission models common to both countries. Measurement campaigns were organised on TGV-A, ICE and Transrapid-07. Classical as well as elaborated measurement techniques were used. Runs were operated at constant speeds ranging from 100 km/h up to 280 km (ICE), 350 km/h (TGV-A) or 400 km/h (TR07). This paper deals with the microphone array techniques which were implemented by the French and German teams. Detailed information about the individual localised noise sources is given in another paper (Hölzl et al. 1994).
