Verification the Stressed State of the Ships’ Hull during Separate Water Descent

Yordan Denev

doi:10.55549/epstem.1409571

Conference Paper

Year 2023, Volume: 26, 272 - 278, 30.12.2023

Yordan Denev

https://doi.org/10.55549/epstem.1409571

Abstract

References

DNV. (2020, May 26). Ticket to trade increasing deadweight for improved efficiency. Retrieved from https://www.dnv.com/expert-story/maritime-impact/Ticket-to-trade-increasing-deadweight-for-improved-efficiency.html
ESAB. (n.d.) MIG/ MAG welding, training and education GL rules.
Material Welding. (2023, July 3). What is efficiency in welding & welding efficiency for-smaw gmawtig fcaw and saw. Retrieved from https://www.materialwelding.com/what-is-efficiency-in-welding

Verification the Stressed State of the Ships’ Hull during Separate Water Descent

Year 2023, Volume: 26, 272 - 278, 30.12.2023

Yordan Denev

https://doi.org/10.55549/epstem.1409571

Abstract

This study evaluates the stressed state of the ship's hull during its welding of separate water descent parts. Separate descent of ship hull is applicable for small and medium sized ship yards (SME), where shipbuilding facilities have restrictions on length and lifting capacity. In the paper different scenarios are developed for verification. It is assumed that separately launched sections of the ship's hull are free of heels and trim, i.e., pre-ballasted, and any initial deformation in connected structures has been eliminated during the stage of hull assembly. In different scenarios, there are varying factors directly related to the strength of the ship, its construction materials, as well as those that have an impact on the production processes. Two of most used welding methods in ship building are analyzed- submerged arc welding and gas metal arc welding. The analysis shows that the stressed state of the ship's hull closely depends on the initial tense state, thickness of plate elements and welding method.

Keywords

Small and medium sized ship yard , Launching , Hull assembly , Thickness , Welding , Strength

References

DNV. (2020, May 26). Ticket to trade increasing deadweight for improved efficiency. Retrieved from https://www.dnv.com/expert-story/maritime-impact/Ticket-to-trade-increasing-deadweight-for-improved-efficiency.html
ESAB. (n.d.) MIG/ MAG welding, training and education GL rules.
Material Welding. (2023, July 3). What is efficiency in welding & welding efficiency for-smaw gmawtig fcaw and saw. Retrieved from https://www.materialwelding.com/what-is-efficiency-in-welding

There are 3 citations in total.

Details

Primary Language	English
Subjects	Environmental and Sustainable Processes
Journal Section	Articles
Authors	Yordan Denev
Early Pub Date	December 25, 2023
Publication Date	December 30, 2023
Published in Issue	Year 2023 Volume: 26

Cite

APA	Denev, Y. (2023). Verification the Stressed State of the Ships’ Hull during Separate Water Descent. The Eurasia Proceedings of Science Technology Engineering and Mathematics, 26, 272-278. https://doi.org/10.55549/epstem.1409571