Within the fourth RTD Framework Programme, the European Union has supported a research project dealing with the improvement of railway noise (emission) measurement methodologies. This project was called MetaRail and proposed a number of procedures and methods to decrease systematic measurement errors and to increase reproducibility. In 1999 the Austrian Federal Railways installed 1000 m of test track to explore the long-term behaviour of three different ballast track systems. This test included track stability, rail forces and ballast forces, as well as vibration transmission and noise emission. The noise study was carried out using the experience and methods developed within MetaRail. This includes rail roughness measurements as well as measurements of vertical railhead, sleeper and ballast vibration in parallel with the noise emission measurement with a single microphone at a distance of 7.5 m from the track. Using a test train with block- and disc-braked vehicles helped to control operational conditions and indicated the influence of different wheel roughness. It has been shown that the parallel recording of several vibration signals together with the noise signal makes it possible to evaluate the contributions of car body, sleeper, track and wheel sources to the overall noise emission. It must be stressed that this method is not focused as is a microphone-array. However, this methodology is far easier to apply and thus cheaper. Within this study, noise emission was allocated to the different elements to answer questions such as whether the sleeper eigenfrequency is transmitted into the rail.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Application of MetaRail railway noise measurement methodoloy: comparison of three track systems


    Beteiligte:
    Kalivoda, M. (Autor:in) / Kudrna, M. (Autor:in) / Presle, G. (Autor:in)


    Erscheinungsdatum :

    2003


    Format / Umfang :

    7 Seiten, 6 Bilder, 2 Tabellen, 2 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






    Injury patterns in pedestrian accidents and the associated methodoloy of real world in-depth studies

    Cuerden,R.W. / Hassan,A.M. / Univ.of Birmingham,GB | Kraftfahrwesen | 1997


    TRACK MEASUREMENT REFERENCE POINT CREATION FROM LINEAR NETWORK RAILWAY TRACK MEASUREMENT DATA

    JAMSHIDI ALI / SUN YIWEN / HERRERA HERRERA MEYLIN et al. | Europäisches Patentamt | 2025

    Freier Zugriff

    TRACK MEASUREMENT REFERENCE POINT CREATION FROM LINEAR NETWORK RAILWAY TRACK MEASUREMENT DATA

    JAMSHIDI ALI / SUN YIWEN / HERRERA MEYLIN HERRERA et al. | Europäisches Patentamt | 2025

    Freier Zugriff