Registration Number
0215U001296,
0112U000400
, R & D reports
Title
Development of mathematical models, methods for analyzing and optimization processes in the elements of technological systems under impact and high dynamic stress loading
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Head
Khavin Valerij,
Registration Date
02-02-2015
Organization
The Kharkov state polytechnical university
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Mathematical model of construction elements of the technological system is presented. The objective of this research is to develop methodology to predict tool wear and tool life in cutting process using finite element simulations. Structural optimization methods of high both geometric and physical informational content are suggested for complicated finite-element models, especially with design variables vector of high dimension, to minimize numbers of straight calculation procedure activation. Based on the current investigations two basic methods of optimization are developed. The first one uses an approximation of the problem in a finite dimensional space. The second one is based on setting the problem in a continuum space, in which the initial differential, integral, or variational equation describing the construction model is defined. The resolved equations of mathematical formulation are provided. Computation stages are investigated. The FEM analysis for a П-shaped thin-walled construction, its strain-stress deformations under center and off-center impact of a solid sphere are presented. The problem of numerical simulation of the bending circular plate with free and fixed edges in three-dimensional setting is considered. The neural network’s model (NN-model) of determining equations of the plastic state of material is in-process presented for the wide range of deformations, speeds of deformations and temperatures. Realization of model is carried out through the neural network - 3-th layer of perseptron with one by the hidden layer. The inductors for magnetic pulse stamping were investigated and designed. In the three-dimensional formulation contact problem (distribution of normalized dynamic stresses) is solved numerically for the process of ring-rolling.
Product Description
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Єгурнов Олег Ростиславович
Ісаков Сергій Миколайович
Автономова Людмила Володимирівна
Бондарь Сергій Володимирович
Галушко Валерій Констятинович
Марусенко Світлана Іванівна
Назаренко Сергій Олександрович
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2020-04-02
