The structural support for the fore mast of barque Sigyn : design & manufacturing drawings
Korpela, Oskar (2025)
2025
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2025061623086
https://urn.fi/URN:NBN:fi:amk-2025061623086
Tiivistelmä
This thesis presents the design of a support structure for the foremast of the barque Sigyn. The ship’s wooden hull structures have deteriorated over time to the extent that the concentrated load from the mast poses a risk of permanent damage to the vessel. Therefore, a support structure is designed to transfer the mast’s weight away from the ship and into the steel-structured floating dock, Loke.
The design process includes the analysis of geometric constraints, structural strength assessments, and both 2D and 3D modelling. The final structure is a four-legged steel support designed to transfer the mast’s load away from the ship. The design takes into account the preservation requirements of the museum ship, structural limitations, and the need for installation without permanent modifications to the vessel.
The structural sizing is confirmed by strength calculations assessing deflection, buckling, and shear. The results show that the structure can withstand the designed load with an adequate safety margin. The outcome is a set of manufacturing drawings, based on which the support structure can be fabricated.
The design process includes the analysis of geometric constraints, structural strength assessments, and both 2D and 3D modelling. The final structure is a four-legged steel support designed to transfer the mast’s load away from the ship. The design takes into account the preservation requirements of the museum ship, structural limitations, and the need for installation without permanent modifications to the vessel.
The structural sizing is confirmed by strength calculations assessing deflection, buckling, and shear. The results show that the structure can withstand the designed load with an adequate safety margin. The outcome is a set of manufacturing drawings, based on which the support structure can be fabricated.