АППРОКСИМАЦИЯ КРИВОЙ ИЗНОСА ПРОФИЛЯ ОБОДА ЖЕЛЕЗНОДОРОЖНОГО КОЛЕСА, ПРИМЫКАЮЩЕГО К ГРЕБНЮ

Abstract

The article views a specified model of the wear of a separate rolling surface part of a profile based on the data achieved under the calculation of the curve and the radius of the worn profile and also the angles of inclination of a tangent under several rollings. To achieve the goal mathematical dependencies of the wear are used, as well as power-law dependences to describe the wear curves of a wheel surface under different positions of the reference points. The calculations errors are evaluated, the calculating parameters are corrected, such as the wear in different points. For further theoretical researches analytical expressions are used on which graphical dependences are constructed. The calculations are made on the bases of the method of the finite differences, the valuation of the errors of calculations is given. Moreover, a table method of the presentation of a huge number of data is used. The results of the research will be useful for understanding the complicity of the processes and the quantitative evaluation of the interaction of a wheel and a rail in contact.