ANALYSIS OF STRESSES IN THE CONTACT ZONE BETWEEN THE ELECTRIC LOCOMOTIVE WHEEL PAIR AND THE RAIL
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Abstract
The article analyzes the stresses arising in the contact zone between the wheel pair and the rail in freight electric locomotives based on Hertz's theory. The calculations were performed under conditions of an axial pressure of 23 t and a speed of 110 km/h. The results showed that the maximum normal stresses in the contact zone are in the range of 935-1080 MPa. It was established that the wheel radius and dynamic loads have a significant influence on the increase in stress. The obtained results make it possible to develop practical recommendations for increasing the service life of the wheel-rail system.
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