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A coupled approach for dynamic analysis of CALM systems

2002; Elsevier BV; Volume: 24; Issue: 1 Linguagem: Inglês

10.1016/s0141-1187(02)00008-1

1879-1549

Luís Volnei Sudati Sagrilo, Marcos Queija de Siqueira, Gilberto Bruno Ellwanger, E.C.P. Lima, Murcos Donuto Ferreira, Márcio Martins Mourelle,

Coastal and Marine Dynamics

This paper presents a time domain coupled numerical model, integrating the buoy and the slender structures, for the dynamic analysis of catenary anchor leg mooring (CALM) systems under random environmental loading. The model is based on the finite element discretization of the slender structures and the buoy hydrodynamics can be represented by two approaches: one based on Morison's equation and another using the diffraction/radiation theory. The moored tanker dynamic behavior is represented in the model by the hawser dynamic tension. The numerical results of a CALM system, designed to operate in 400 m water depth, are compared to model tests data available, resulting in a very good agreement between them.