Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805
The subjects of research are algorithms and methodological bases for performing structural optimization in electromechanics and electrical engineering. Research is made to provide improving the automation level of optimal structure receipt of electromechanics and electrical engineering objects. The purpose of the work – the formation of the methodological fundamentals for design of optimal structures of electromechanics and electrical engineering objects. The paper presents the identified deficiencies existing methods and ways of optimal structures obtaining. The problem of independent variables identification for the objective function of structural optimization is solved. Research is based on the functional analysis of complex optimization criterion of the structure, which has partial criteria of elements and connections numbers. Number of structure variant is taken as the independent variable, which is later replaced by the number of elementary functions. It is noted that the amount of structure variant significantly enhances with increasing elementary functions. Functional dependences for a number of elements and connections are formulated, for which by the example of linear structures functional analysis is made. Based on the analysis the theorems of connections and structures optima are formulated. Theorem of connections optimum: connections minimum takes place with a minimum of elements. Theorem of structure optimum: structure variant is optimal with a minimum of elements number. A generalized algorithm for the synthesis of the optimal structure of electromechanics and electrical engineering objects is proposed, which can be used in the design of electrical machines, electrical drives and electrical systems. The generalized algorithm synthesis of optimal structure and its methodological foundations are the novelty of the work. Conclusions: 1. The determinative criterion for structural optimization is the number of elements. 2. The optimal structure must be sought not by execution of structural optimization; it has to form initially with the help of the proposed algorithm.
DOI 10.15276/eltecs.24.100.2017.04
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