Key Influencing Factors in Ultimate Strength Analysis for Large Container Ships

摘要

Considering usual computation efforts, single-frame models are used in the ultimate strength analyses of container ships. However, the case of large container ships is more complicated, and further investigations should be made. Generally speaking, the modeling extent, boundary conditions, lateral pressure, and initial deflection are key factors in the ultimate strength analysis. As a case study, we investigated their influences on ultimate strength under both vertical bending and torsion cases for a typical 10,000 twenty-foot equivalent unit (TEU) container ship, and also bending-torsion interactions. The results are representative and can be reference values for container ships of similar sizes.