Stress and strain analysis that occurs in the structure of a section and in its lifting installation, during the lifting and turning maneuvers

  • Liviu Galatanu “Dunarea de Jos” University of Galati
  • Andreea Georgiana Darie “Dunarea de Jos” University of Galati
  • Eugen Gavan “Dunarea de Jos” University of Galati
  • Costel Iulian Mocanu “Dunarea de Jos” University of Galati
Keywords: lifting – turning sections, structural analysis.

Abstract

During the shipbuilding processes carried out in the shipyards, there is a need to transport the sections of ship structure, from the place where they are built to the assembly location. When the shape and structure of the sections allow, they are built in an inverted position, and after finishing all the works that can be performed in this type of placement, the section will have to be turned to continue the section building process and subsequent the assembly. Loads that appear in the structure during these maneuvers are different from those that appear during the operation and from those for which calculations were made at the stage of the initial project. Therefore, it is necessary to calculate them and design a lifting / turning installation, which should also contain stiffening elements where required, in order to prevent both accidents and deformations or detachments that could occur at the section level. From this necessity appears the plan generically called "lifting plan" and which contains the installations, the schemes, the necessary instructions to remove the units from the section building hall, turn it to the gantry cranes and brought into the mounting position.

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References

[1] Lifting Eyes Standard for Damen Shipyards Galati.
[2] https://pdf.directindustry.com.html
[3] http://www.omahaslings.com/all-wirerope- slings.html
[4] Lifting beam documentation- Damen Shipyards Galati.
[5] Block Section Plan – Damen Shipyards Galati
[6] Construction Plan of the section - Damen Shipyards Galati.
[7] https://autofem/help/intro_1.html
[8] Leonard Domnișoru – Metoda elementului finit în construcții navale, Editura „Tehnica”.
[9] Finite element method - Fundamental concepts; http://www.resist.pub.ro
[10] Course - Simulation and analysis using the virtual prototype.
Published
2020-12-15
How to Cite
1.
Galatanu L, Darie A, Gavan E, Mocanu C. Stress and strain analysis that occurs in the structure of a section and in its lifting installation, during the lifting and turning maneuvers. Annals of ”Dunarea de Jos” University of Galati. Fascicle XI Shipbuilding [Internet]. 15Dec.2020 [cited 20May2022];43:53-0. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/fanship/article/view/4008
Section
Articles

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