The classic methods of engineering calculation and mathematical modeling that are used in designing the metal-cutting machine tools are based on sequential identification of the components of the structure as the elements of a complex system. In this approach the initial data are the equations that describe the individual elements of the system and their combinations. The prediction of the behavior of the system is based on the particular solutions of these equations. However, since in many cases the interactions of the individual parts of the model and the connections between them are not established, the modeling results may not correspond to the experimental data [1]. This non-correspondence cannot in principle be eliminated by improving the identification procedure [2]. It becomes necessary to find the missing connections - and also the significant, and not always known in advance, change of the structure of the model.
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