ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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vol 67 / February, 2024
Article

DOI 10.17586/0021-3454-2022-65-8-585-596

UDC 681.527

DEVELOPMENT OF A SYSTEM OF MAGNETIC INDUCTION SENSORS FOR DIAGNOSING WEAR OF THE ROLLING STOCK WHEELSET CREST

K. S. Petrov
Omsk State Transport University, Department of Automation and Control Systems;


E. V. Kondratenko
;


V. V. Petrov
Omsk State Transport University, Department of Automation and Control Systems; Senior Scientist


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Abstract. Two variants of the device containing four or six small-sized magnetic induction sensors mounted on the sole of the rail are considered. The device is designed to diagnose the shape of the crest of rolling stock wheelsets during its movement over the sensors along a straight rail track. An algorithm for calculating the parameters of the profile of the wheelset ridge is proposed, which allows identifying the coordinates of the center and the radius of the ridge with the shape described by a second-order equation, i.e., the model of the crest tire has the shape of a semicircle corresponding to the standard wheel profile. In addition, an algorithm for testing the adequacy of the obtained parametric model is implemented. An algorithm for identifying the degree of wear of the vertical undercutting of the ridges of the wheelsets is proposed based on the use of approaches similar to instrumental control methods, using standard templates specially developed in accordance with the State Standard "Solid Rolled Wheels". The proposed mathematical model describing the process of wear of the vertical undercutting of the ridge makes it possible to automate the procedure for diagnosing the state of the wheel pair profile during the movement of the train over the three-point system of magnetic induction sensors and simulating the procedure for instrumental control of the wheel crest parameters. The algorithms embedded in the proposed mathematical model and implemented on the basis of a microprocessor controller allow automating the process of instrument monitoring of the condition of wheel ridges in real time, calculating and predicting the timing of maintenance or necessary repair of wheel sets of railway transport rolling stock.
Keywords: mathematical model, shape of vertical crest undercut, magnetic induction sensor, algorithm, diagnostics, rolling stock, wheelset, instruments, automation

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