Evaluation of the Corrosion Depth of Double Bottom Longitudinal Girder on Aging Bulk Carriers
Апстракт
The longitudinal girder (LG) between fuel oil tanks (FOT) and water ballast tanks in the double bottoms of ships represent critical structural parts whose watertight nature could be harmed by corrosion, thus, causing the pollution of water ballast tanks and adjacent areas. The new common structural rules (CSR) define the minimum thickness values of structural elements and corrosion margins. The assessment of the deviations from the prescribed values during ship operation could optimize the prescribed criteria. Assuming that corrosive processes begin after four years of operation, the paper analyzes a linear model that describes the percentage of plate wear as a function of the built-in thickness of LG of FOT. The research included 20 ships and provided the database for 1918 corrosion depth values. The gauging records included the average values of the original thickness of steel plates grouped in three intervals (11–13 mm, 13–15 mm, 15–18 mm). Based on the difference between the built-...in and subsequently measured values, the paper analyzes the percentage of thickness reduction due to corrosion, concerning the original plate thickness. The findings of the research should facilitate the optimization of corrosion margins and prevent potential structural collapse and pollution.
Кључне речи:
ships corrosion / longitudinal girder / corrosion depth / linear modelИзвор:
Journal of Marine Science and Engineering, 2022, 10, 10, 1425-Издавач:
- MDPI
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Ivošević, Špiro AU - Kovač, Nataša AU - Momčilović, Nikola AU - Vukelić, Goran PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4243 AB - The longitudinal girder (LG) between fuel oil tanks (FOT) and water ballast tanks in the double bottoms of ships represent critical structural parts whose watertight nature could be harmed by corrosion, thus, causing the pollution of water ballast tanks and adjacent areas. The new common structural rules (CSR) define the minimum thickness values of structural elements and corrosion margins. The assessment of the deviations from the prescribed values during ship operation could optimize the prescribed criteria. Assuming that corrosive processes begin after four years of operation, the paper analyzes a linear model that describes the percentage of plate wear as a function of the built-in thickness of LG of FOT. The research included 20 ships and provided the database for 1918 corrosion depth values. The gauging records included the average values of the original thickness of steel plates grouped in three intervals (11–13 mm, 13–15 mm, 15–18 mm). Based on the difference between the built-in and subsequently measured values, the paper analyzes the percentage of thickness reduction due to corrosion, concerning the original plate thickness. The findings of the research should facilitate the optimization of corrosion margins and prevent potential structural collapse and pollution. PB - MDPI T2 - Journal of Marine Science and Engineering T1 - Evaluation of the Corrosion Depth of Double Bottom Longitudinal Girder on Aging Bulk Carriers IS - 10 SP - 1425 VL - 10 DO - doi.org/10.3390/jmse10101425 ER -
@article{ author = "Ivošević, Špiro and Kovač, Nataša and Momčilović, Nikola and Vukelić, Goran", year = "2022", abstract = "The longitudinal girder (LG) between fuel oil tanks (FOT) and water ballast tanks in the double bottoms of ships represent critical structural parts whose watertight nature could be harmed by corrosion, thus, causing the pollution of water ballast tanks and adjacent areas. The new common structural rules (CSR) define the minimum thickness values of structural elements and corrosion margins. The assessment of the deviations from the prescribed values during ship operation could optimize the prescribed criteria. Assuming that corrosive processes begin after four years of operation, the paper analyzes a linear model that describes the percentage of plate wear as a function of the built-in thickness of LG of FOT. The research included 20 ships and provided the database for 1918 corrosion depth values. The gauging records included the average values of the original thickness of steel plates grouped in three intervals (11–13 mm, 13–15 mm, 15–18 mm). Based on the difference between the built-in and subsequently measured values, the paper analyzes the percentage of thickness reduction due to corrosion, concerning the original plate thickness. The findings of the research should facilitate the optimization of corrosion margins and prevent potential structural collapse and pollution.", publisher = "MDPI", journal = "Journal of Marine Science and Engineering", title = "Evaluation of the Corrosion Depth of Double Bottom Longitudinal Girder on Aging Bulk Carriers", number = "10", pages = "1425", volume = "10", doi = "doi.org/10.3390/jmse10101425" }
Ivošević, Š., Kovač, N., Momčilović, N.,& Vukelić, G.. (2022). Evaluation of the Corrosion Depth of Double Bottom Longitudinal Girder on Aging Bulk Carriers. in Journal of Marine Science and Engineering MDPI., 10(10), 1425. https://doi.org/doi.org/10.3390/jmse10101425
Ivošević Š, Kovač N, Momčilović N, Vukelić G. Evaluation of the Corrosion Depth of Double Bottom Longitudinal Girder on Aging Bulk Carriers. in Journal of Marine Science and Engineering. 2022;10(10):1425. doi:doi.org/10.3390/jmse10101425 .
Ivošević, Špiro, Kovač, Nataša, Momčilović, Nikola, Vukelić, Goran, "Evaluation of the Corrosion Depth of Double Bottom Longitudinal Girder on Aging Bulk Carriers" in Journal of Marine Science and Engineering, 10, no. 10 (2022):1425, https://doi.org/doi.org/10.3390/jmse10101425 . .