Перегляд за Автор "Kostikova, M. V."

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Geometric modelling and its application to design highways
(Харківський національний автомобільно-дорожній університет, 2022) Levterov, A. I.; Plekhova, H. A.; Kostikova, M. V.
Mathematical models to solve optimization connection problems in nonsimply connected regions under typical technological restrictions on geometric and topological parameters of routes, first of all, on curvature and the number of bends, have been investigated and developed. The models are linked with the extant and prospective topogeodesic models of the polygonal images of territories.
Modeling the integration of finite element method and strain gauging for evaluating metal structures in port machinery
(Харківський національний автомобільно-дорожній університет, 2024) Lehetska, I. P.; Kostikova, M. V.
The condition of metal structures of port handling machines in Ukrainian ports is alarming due to issues such as corrosion, mechanical wear, lack of modernization, limited maintenance resources, and insufficient application of contemporary control methods. Structures that have been operational for several decades exhibit significant wear, reducing their loadbearing capacity and increasing the risk of accidents. The humid marine environment exacerbates corrosion, while the stresses imposed on transshipment machinery contribute to material fatigue and cracking. This study explores the challenges and potential solutions related to the condition of metal structures of port handling machines in Ukraine. We identify key issues such as corrosion, mechanical wear, inadequate modernization, and limited funding for maintenance. Specifically, we apply a combination of the analytical finite element method (FEM) and experimental strain gauging to assess the stress-strain state of the metal structures of portal cranes. This integrated approach yields accurate data on structural conditions, crucial for ensuring operational safety and efficiency.
Time restriction aspects in the modeling of cyber-physical systems for industry 4.0
(Харьковский национальный автомобильно-дорожный университет, 2018) Lizárraga, M. L.; Buelna, A.; Díaz-Ramirez, A.; Amaro-Ortega, V.; Kostikova, M. V.; González-Navarro, F. F.; Werner, F.; Burtseva, L.
Cyber-physical systems in Industry 4.0 are comprised of a computational core, a communication core, and a physical system. The computational core has strict timing restrictions and represents a Real-time system. In this paper, the modeling of the computational core is discussed.