For the past 15 years, a number of tests at high speed were carried out for different trains in different countries (France, Germany, Italy, Japan, Spain ...). In the TGV case, apart from test at operating commercial speeds, various acoustical measurements were carried out, either within dedicated programs (Deufrako Cooperations K and K2, 350 kph measurement campaign a few years ago on TGV Duplex, and more recently 360 kph test on TGV Reseau), or at the occasions of very high speed campaigns.
From the data gathered in each measurement campaign with a single microphone and an antenna, successive methods of sources characterisations were developed.
After a review of the global noise level of the high speed trains in Europe, the regression law of the sound pressure level according to the train speed is investigated. Limits of the antenna measurement are presented and several ways of improvement are proposed. Source characterisation becomes a more and more important issue as these data are used as input for acoustical models of train pass-by in the design stage.
Noise Sources for High Speed Trains: A Review of Results in the TGV Case
Noise and Vibration Mitigation for Rail Transportation Systems ; Kapitel : 10 ; 71-77
2008-01-01
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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