Інформаційні технології

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Browsing Інформаційні технології by Subject "TECHNOLOGY::Engineering physics"

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    Constructing Reference Plans of Two-Criteria Multimodal Transport Problem
    (Transport & Telecommunication Institute, Latvia, 2021) Przystupa, Krzysztof; Qin, Zhang; Zabolotnii, Serhii; Заболотній, Сергій Васильович; Pohrebennyk, Volodymyr; Mogilei, Sergii; Могілей, Сергій Олександрович; Zhongju, Chen; Gil, Leszek
    The object of this study is a multicriteria transport problem, being stated for availability of several means of cargo delivery, meaning a multimodal transport problem. The optimization criteria of the multimodal transport problem described above are two objective functions of minimizing total transportation costs and level of transport risks. Three types of transport were selected for research: automobile, rail and river (inland waterway). The results of the study lay the foundation for development of a new valid algorithm for solving multimodal transport problems like multi-criteria optimization ones. The main advantage of such an algorithm lies in its higher potential convergence rate compared to classical numerical optimization methods, which now are predominantly used to solve the problems of this type. This advantage may not be decisive, but it appears to be at least quite an important argument when choosing the method of realization for two-criteria multimodal transport problems earlier considered, especially, in case of a large dimension. Moreover, the algorithm described in the work can be applied to similar problems with any number of types of transport and optimization criteria.
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    Predictive Assessment of Bus Body Life in the Matlab Simulink Software Environment
    (University of Žilina, 2024) Ruban, Dmytro; Lanets, Olena; Kraynyk, Lubomyr; Kovalyshyn, Stepan; Ruban, Hanna; Рубан, Ганна Яківна; Madleňák, Radovan; Maciaszczyk, Magdalena
    The lifespan prediction of the bus body of the load-bearing structure has been made and compared to the results of real operation. The maximum approximation of the simulation modelling results in Matlab Simulink to real operation is explained by taking into account a sufficient number of factors influencing durability. This research has the particularity that it allows determining the durability of the bus body even at the design stage, which was not possible with accelerated tests or during the operation of the bus on real routes. The obtained results can be used by bus manufacturers at the design stage, allowing them to change the construction and technology of anticorrosion protection, thereby influencing the durability. In addition, operating organizations will be interested in the obtained results when using the developed methodology in various operating conditions.