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Article Dans Une Revue Applied Sciences Année : 2023

Experimental Study and Phenomenological Laws of Some Nonlinear Behaviours of the Wheel–Rail Contact Associated with the Deshunting Phenomenon

Résumé

A widely used technique for locating the position of a train during its journey involves electrical detection: on a section of track, the train closes (“shunts”) a circuit dedicated to its location via its wheels and axles. The quality of the wheel–rail contact is therefore particularly important for signalling management and traffic control. In this paper, we show that the current flowing through the track circuit induces a permanent modification and a nonlinear, frequency-dependent behaviour of the electrical contact. We propose an analytical expression that describes the evolution of the measured voltage as a function of current and frequency for these nonlinear behaviours. This behavioural law was obtained using experimental measurements on a real train and could therefore be integrated into a global model describing the track system.
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Dates et versions

hal-04297829 , version 1 (21-11-2023)

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Guy-Léon Kaza, Frédéric Houzé, Florent Loëte, Philippe Teste. Experimental Study and Phenomenological Laws of Some Nonlinear Behaviours of the Wheel–Rail Contact Associated with the Deshunting Phenomenon. Applied Sciences, 2023, 13 (21), pp.11752. ⟨10.3390/app132111752⟩. ⟨hal-04297829⟩
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