Identification Problems of Material Structures Based on Fractal Presentations

Autor: K. A. Ivushkin, K. G. Wenger, Myshlyaev Leonid P, V. V. Grachev
Rok vydání: 2021
Předmět:
Zdroj: Steel in Translation. 51:257-260
ISSN: 1935-0988
0967-0912
DOI: 10.3103/s0967091221040082
Popis: This work is devoted to management of material structures based on fractal presentations. Fractal material structures are formed due to positive feedback. The first stage is described: formulation of the identification problem of material structures based on fractal presentations. Fractal nature of materials is mentioned in numerous recent studies, herewith, generation of fractal structures is attributed to mechanisms of positive feedbacks. Fundamental physicochemical regularities of origination and transformation of material structures are currently developed and presented in such form that it is difficult to apply them for synthesis of control algorithms of structures. In other words, they do not meet the requirements to control models: output impacts are not disclosed as a function of external factors. It would be reasonable to develop fractal models of structures (that is, to identify material structures) with subsequent development of control impacts, in particular on parameters of positive feedback, in order to predict and modify material structure as required. This corresponds to the synthesis of control algorithms with estimation of controlled object and selection of coefficients of controller gain. The identification problems of images of actual material structures are formulated on the basis of presentations of dynamic chaos. These formulations of the problems have been used for development of methods and algorithms of identification of material structures in various industries, including mining and metallurgy.
Databáze: OpenAIRE
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