Measurements are presented of irregularities on rails in the wavelength range 6.3-5000 mm. Two types of equipment have been used, a hand-held measuring trolley (the so-called CAT) and vehicle-mounted RCA equipment that is typically used for routine quality assurance of rail reprofiling work. There is close correlation of one-third octave spectra from the two types of equipment for most of the wavelength range of interest. The RCA is a more repeatable instrument than the CAT for wavelengths of greater than a metre. Use of such equipment offers a relatively simple, readily available means of controlling residual irregularities from reprofiling and thereby reducing noise. Control of irregularities over a wide wavelength range is within the capabilities of modern reprofiling equipment, but only if an appropriate specification is rigorously monitored.


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    Titel :

    Measurement of Long Wavelength Irregularities on Rails


    Weitere Titelangaben:

    Notes Numerical Fluid Mech.


    Beteiligte:
    Nielsen, Jens C.O. (Herausgeber:in) / Anderson, David (Herausgeber:in) / Gautier, Pierre-Etienne (Herausgeber:in) / Iida, Masanobu (Herausgeber:in) / Nelson, James T. (Herausgeber:in) / Thompson, David (Herausgeber:in) / Tielkes, Thorsten (Herausgeber:in) / Towers, David A. (Herausgeber:in) / de Vos, Paul (Herausgeber:in) / Grassie, S. L. (Autor:in)


    Erscheinungsdatum :

    2015-01-01


    Format / Umfang :

    7 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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