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Structural strength analysis of a 400 ft self-elevating drilling unit main hull
Pages: 137-140
Year: Issue:  6
Journal: Wuhan Shipbuilding

Keyword:  self-elevating drilling unitmain hullmodelingapplied loadsstructural strengthfinite element method;
Abstract: The natural period of the 400 ft self-elevating drilling unit in operational condition with 91. 4 m water depth is close to the wave period which leads to a high dynamic amplification factor,and the combined loading of cantilever-drill floor system is maximum in the operation condition. The structural strength of the main hull in this load case is analyzed by FEM. The key points of modeling and loads applying methods in structural strength analysis of the main hull are studied in detail. The highstress areas are found and it provides reference for the structural design and strength assessment of the main hull.
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