It has been established that computer-aided design systems are currently an effective tool in engineering practice. Based on the methods of computer modeling, it is possible to assess the performance of any technical system in a given period of time. The operability of almost all technical systems is associated with the analysis of the process of wear of its elements. For the numerical modeling of wear processes, an iterative approach is proposed, which involves consideration of a number of discrete states through which the tribosystem passes during its operation. To characterize tribosystems, the method uses a unified mathematical apparatus to simulate the wear of various friction units. This takes into account a wide range of operating factors that limit the physical characteristics of wear processes and their changes in the process of functioning. An algorithm of interaction of the module for calculating the wear of an element with a computer-aided design system and an example of its implementation are presented.

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