Analysis of the influence of the meshing size for an oil tanker structural model on the stress hot spot values
Keywords:
stress hot spot, oil tank local structure, FEM analysis.
Abstract
The development of the shipbuilding industry leads to new requirements for the safety of ships. Stress hot spots are recorded on every floating structure and they influence nega-tively the hull strength. This analysis identifies the stress hot spots and the influence of the meshing size on their values for a 97235 tdw oil tanker, using the Femap/NX Nastran program. Structurally, two constructive options were considered for the central longitudi-nal bulkhead: corrugated and flat panels. The detailed local structural model is devel-oped for three mesh sizes: coarse, medium, and fine. Quad and triangle shell elements are used for the FEM local models.
References
[1].FNN,“Femap/NX Nastran users' manual”, Siemens PLM Software Inc., 2022. (https://www.plm.automation.siemens.com/plmapp/education/femap/).
[2].DNV,“Rules”, Det Norske Veritas, 2022. (https://www.dnv.com/rules-standards/).
[3].Domnisoru, L.,"Finite element method in naval constructions”, Technical Publishing House Bucharest, 2001.
[4].JSEA, “SEA Japan”, Japan Ship Exporters' Association, Eureka International Inc., 1997. (https://www.jsea.or.jp/en/)
[2].DNV,“Rules”, Det Norske Veritas, 2022. (https://www.dnv.com/rules-standards/).
[3].Domnisoru, L.,"Finite element method in naval constructions”, Technical Publishing House Bucharest, 2001.
[4].JSEA, “SEA Japan”, Japan Ship Exporters' Association, Eureka International Inc., 1997. (https://www.jsea.or.jp/en/)
Published
2022-12-03
How to Cite
1.
Lazăr N, Domnișoru L. Analysis of the influence of the meshing size for an oil tanker structural model on the stress hot spot values. Annals of ”Dunarea de Jos” University of Galati. Fascicle XI Shipbuilding [Internet]. 3Dec.2022 [cited 26Apr.2024];45:41-0. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/fanship/article/view/5541
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