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Wednesday, July 10 • 17:50 - 18:10
SIMULATION STUDY ON THE INFLUENCE OF SPRINGING ON LARGE SHIPS

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In recent years, with the development of Chinese shipbuilding industry, the number of large ships becomes increases and the usage of high-strength steel is also increased gradually while the phenomena of springing is also outstanding gradually among the large ships of more than ten thousand tons. Springing is a high-frequency resonance, a phenomenon of resonance of the hull structure and wave loads which has great impacts on the fatigue life of the hull structure. This paper carries out comprehensive elaboration of theoretical calculation method designed in the research on spring, builds the model with finite element software and carries out modal analysis as model tests can reveal the underlying and systematic mechanical properties of a ship and promote the further improvement and development of the theoretical calculation method as a means of verifying the method. Through analysis of the reasons of springing and the optimization of large ships in their structural design, the impacts of the springing on the hull structure are reduced to maximum extent. In addition, this paper also puts forward prospects of the research on the springing of the current ships. According to the results, both the changes in the cycle of wave and the hull stiffness can influence the springing.

Moderators
MJ

Miroslav Janota

Ph.D., Czech Technical University in Prague
avatar for Vadym Kruts

Vadym Kruts

Senior researcher, G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine

Authors

Wednesday July 10, 2019 17:50 - 18:10 EDT
St-Laurent 4
  T07 Struct. dyn. & nonlin. vib., RS01 Modal analysis

Attendees (3)