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JOURNALS // Proceedings of the Yerevan State University, series Physical and Mathematical Sciences // Archive

Proceedings of the YSU, Physical and Mathematical Sciences, 2023 Volume 57, Issue 3, Pages 79–85 (Mi uzeru1084)

Mechanics

On one problem of optimal control of vibrations of a plate-strip in a temperature field

E. R. Grigoryan

Yerevan State University, Faculty of Mathematics and Mechanics

Abstract: The problem of optimal control of elastic vibrations of an isotropic platestrip under the influence of temperature and force fields is studied. the function of changing the external load on the plane of the plate is represented as a control function. optimal control is also carried out by the distribution function of the temperature of the external field over the plate. the well-known classical hypotheses of thermo-elastic bending of the plate are accepted. the equations of transverse vibrations of the plate and heat conduction in the plate are solved under the boundary conditions of heat transfer and the stress state on the planes of the plate. the method of Fourier series, the method of representing moment relations, the well-known method of minimizing the functional are used.

Keywords: vibrations, thermal conductivity, optimal control, thermo-elasticity

MSC: Primary 35Q93; Secondary 74F05

Received: 25.06.2023
Revised: 19.09.2023
Accepted: 25.09.2023

Language: English

DOI: 10.46991/PYSU:A/2023.57.3.079



© Steklov Math. Inst. of RAS, 2024