METHOD OF ASSESSING DEGREE OF WEAR OF RAILWAY WAGON BOGIE Russian patent published in 2011 - IPC G01N29/14 

FIELD: physics.

SUBSTANCE: acoustic emission signal parameters are received, recorded and assessed during movement of a railway wagon bogie. The acoustic signals are digitised. The spectrum of acoustic signals is analysed and said signals are processed, characterised by that transducers of acoustic emission system SDS1008 are mounted on clean fixed elements of the wagon bogie, having maximum degree of wear on the whole or on its separate components, on the "right" and "left" side with two on each side. The acoustic emission transducers are connected to preamplifiers lying near the transducers. The preamplifiers are connected to the system unit of the SDS1008 system and a portable computer. The railway wagon bogie is moved at different speeds and modes with different degree of loading the wagon on circular and straight railway sections which are "reference sections". Spectral parameters of the acoustic emission from the acoustic emission transducers are recorded. The obtained data are considered "reference" data. The analysed railway wagon bogie is moved on the same modes on "reference sections". Parameters of acoustic emission with the analysed bogie are recorded. The obtained results are analysed and compared with "reference" data and the degree of wear of the analysed railway wagon bogie on the whole or its separate components is determined from the analysis and comparison results.

EFFECT: possibility of obtaining accurate information on the degree of wear of a railway wagon bogie or its separate components.

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