Estimation of the stress-strain state of port handling machines
Article Sidebar
Main Article Content
Abstract
The state of metal structures of port handling machines in Ukrainian ports is alarming due to several problems, such as corrosion, mechanical wear, lack of modernizations, limited resources for maintenance and insufficient application of modern control methods. Over time, structures that have been in operation for several decades are subject to significant wear and tear, which reduces their load-bearing capacity and increases the risk of accidents. The humid marine environment contributes to corrosion, while the stresses of transhipment machinery cause material fatigue and cracking. Lack of modernisation and limited funding for maintenance often lead to accidents. Irregular use of modern non-destructive testing methods makes it difficult to detect hidden defects on time. This paper examines the problems and potential solutions regarding the condition of metal structures of port handling machines in Ukrainian ports. Several major problems are identified, such as corrosion, mechanical wear, lack of modernisation and limited maintenance funding. In particular, methods are used to assess the stress-strain state of metal structures of portal cranes, a combination of the analytical finite element method (FEM) and the experimental method of strain measurement. As a result, the integration of FEM and strain gauging has made it possible to obtain accurate data on the condition of structures, which is critical to ensuring their safety and efficiency in operation
Article Details
References
2. Nemchuk O. O. Influence of the working loads on the corrosion resistance of steel of a marine harbor crane. Materials Science, 54(5). P. 743-747.
3. 3. Nemchuk, O., Konoplyov, A., Kibakov О., & Lehetska, I. (2023). Review and analysis of methods for assessing damage to steel structure of lifting machines. Transport Development, (4(19), 48-55. https://doi.org/10.33082/td.2023.4-19.04
4. Lehetska I.P. (2024) Zastosuvannia metodu polyaryzatsiinoho oporu stalei dlia kontroliu dehradatsii metalokonstruktsii portovykh kraniv (in urkainian), Visnyk ONMU, 1(73).
5. Lehetska I.P. (2022). Ship unloader structure fatigue damage analysis and residual life assessment using magnetic (coercive force) nondestructive test method. Findings of modern engineering research and developments: Scientific monograph. Riga, Latvia: «Baltija Publishing», 2022, 265-294. DOI https://doi.org/10.30525/978-9934-26-207-4-10
6. Nemchuk O.O., Lehetska I.P., Kokoshko Ye.M. (2023). Vyznachennia napruzheno-deformovanoho stanu metalokonstruktsii portovykh perevanta- zhuvalnykh mashyn v umovakh ekspluatatsii (in Ukrainian). Odesa. 460 p.
7. Nemchuk O., Konopliov A., Lehetska I (2023). Analiz efektyvnosti metodiv vantazhopidiomnykh mashyn.(in Ukrainian) Zbirnyk tez Mizhnarodnoi praktychnoi konferentsii «Rozbudova i vidnovlennia mashynobudivnoho kompleksu Ukrainy». Kharkiv.
8. Nemchuk O.O., Streltsov P.M., Lehetska I.P. (2021). Rozrobka metodiv pidvyshchennia produktyvnosti perevantazhuvalnoho obladnannia v portakh Chornomorsko-Baltiiskoho baseinu z metoiu zabezpechennia ekonomichnoi staloosti krain rehionu. Zbirnyk tez Mizhnarodnoi naukovoi konferentsii «Morska bezpeka Baltiisko-Chornomorskoho reghionu: vyklyky ta zahrozy» Odesa, Ukraina.