Improving the quality of the computer model of the wear of an axisymmetric friction pair by increasing its adequacy

The article describes the process of improving the quality of a computer model of wear based on Archard›s law for an axisymmetric friction pair. One of the most common representatives of such friction pairs are pivot jewel bearings, used both in measuring instruments and in various rotary systems. The quality metric of the mathematical model under consideration is its adequacy - the level of compliance with the real process. As measures to improve the adequacy of the model, consideration is given to the dependencies of the model parameters that change during the wear process, and a method is proposed for modifying the original model to be able to calculate wear on the axis of rotation of a friction pair. Examples are given based on numerical modeling of wear-contact problems for friction pairs with known analytical estimates of the amount of wear, showing the importance of taking into account the above parameters and phenomena. Numerical simulation of the wear process was carried out in the ANSYS Mechanical CAE system. The use of a more adequate computer model of the wear process in the design of critical components of the units will improve the quality of the final product.