Computer simulation of large displacements of thermoelastic rods

Baisarova, G and Brzhanov, R and Kikvidze, O.G. and Lakhno, V and Buriachok, Volodymyr and Chubaievskyi, V (2019) Computer simulation of large displacements of thermoelastic rods Journal of Theoretical and Applied Information Technology, 15 (97). pp. 4188-4201. ISSN 1992-8645

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Abstract

This paper presents the results of research, including elements of theoretical calculation, computer simulation and experimental study of displacements, internal force factors and temperature fields during plane deformation of rods. The temperature problem for a bar of rectangular cross section was studied. The differential equation of one-dimensional unsteady heat conduction is solved in the Mathcad system for boundary conditions of the first and third kind, including for non-stationary boundary conditions established experimentally. The results of numerical calculations in Mathcad are in good agreement with the results of the experiment. The maximum error is 17% at the end of heating at t =440 с. The coordinates of the reduced center of gravity with uneven temperature distribution are determined. It has been established that an increase in the temperature gradient affects the coordinates of the reduced center of gravity and, in fact, does not depend on the law of temperature change. The calculations were carried out in the Mathcad system. The simulation experiments carried out in the Mathcad system reduced the laboriousness of work by about 20% to study factors that influence internal stresses and temperature fields during plane deformation of rods.

Item Type: Article
Uncontrolled Keywords: Thermoplastic Rod; Computer Simulation; Non-Stationary Thermal Conductivity
Subjects: Статті у наукометричних базах > Scopus
Articles in journals > Наукові (входять до інших наукометричних баз, крім перерахованих, мають ISSN, DOI, індекс цитування)
Divisions: Факультети > Факультет інформаційних технологій та управління > Кафедра інформаційної та кібернетичної безпеки
Depositing User: Павло Миколайович Складанний
Date Deposited: 16 Sep 2019 06:17
Last Modified: 16 Sep 2019 06:17
URI: http://elibrary.kubg.edu.ua/id/eprint/27848

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