Experimental study of the method and device for wheel-sets acoustic monitoring of railway cars in motion
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- Category: Geotechnical and Mining Mechanical Engineering, Machine Building
- Last Updated on 01 September 2019
- Published on 19 August 2019
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Authors:
V.V.Bondarenko, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0003-4019-4017, Ukrainian State University of Railway Transport, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
D.I.Skurikhin, Cand. Sc. (Tech.), orcid.org/0000-0002-3746-5157, Ukrainian State University of Railway Transport, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
R.I.Vizniak, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0001-6179-4981, Ukrainian State University of Railway Transport, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
V.H.Ravlyuk, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0003-4818-9482, Ukrainian State University of Railway Transport, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
V.I.Skurikhin, Cand. Sc. (Tech.), orcid.org/0000-0001-7415-7105, National University of Urban Economy in Kharkiv, Kharkiv, Ukraine
Abstract:
Purpose. Improving the technology of maintenance of wheel-sets of passenger cars using the on-board monitoring system and the acoustic monitoring method.
Methodology. Field studies of the acoustic monitoring method were conducted in accordance with the requirements of the current standards using a professional sound recorder. The initial data were analyzed using the licensed software, acoustic signal envelopes were computed using the Hilbert transform, and the values of the peak factor of the acoustic signal from the interaction of the wheel and the rail in the frequency bands were calculated.
Findings. The methods for detection of damages of wheel-sets in the railways of different countries were analyzed and an alternative approach to monitoring the technical condition of wheel-sets in motion of cars was proposed. Field investigations of the acoustic monitoring method were conducted, the obtained data were processed and analyzed, informative diagnostic signs were defined. The results of the study were used for programming and configuring the acoustic monitoring device for wheel-sets.
Originality. For the first time, the noise emission sources of cars were investigated experimentally during operational movement, the noise sources of the rolling stock were classified, and informative diagnostic signs of a signal for the detection of wheel damage were discovered and calculated using the acoustic monitoring method.
Practical value. A model of the acoustic monitoring device was developed and configured based on experimental studies and subsequent calculations, which allowed reducing the number of sensors per car and improving their operational conditions. Laboratory tests of the developed device were conducted.
References.
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