This paper focuses on the investigation carried out on the failure of the MSC Napoli using two-dimensional (2D) symmetric (i.e. vertical bending) hydroelasticity analysis. The aim of the investigation was to assess the influence of whipping-induced loads on the structural strength of this containership. Relevant structural, hydrostatic and operational data were provided. The calculations were c...

The experimental results of a 1:30 scaled wave tank experiment point-absorber in extreme sea states and intermediate water depth are studied. effect the PTO damping parameter different non-linear phenomena conditions such as breaking overtopping investigated with focus on maximum line (mooring) force presence an upper end-stop. In comparison wave-type representations, i.e. irregular, regular, f...

The water entry of a wedge has become model test in marine and naval engineering research. Wagner theory, originating 1932, predicts impact pressures, accounts for contributions to the total pressure arising from various flow domains vicinity wetting region on wedge. Here we study slamming pressures cone, impacting keeping constant, well-controlled velocity, throughout process, using high-fidel...

In recent years, trimarans have been used in high-speed transport and warships, but studies of them made little progress. We designed a trimaran model it to perform water-entry experiment find way reduce the slamming pressure. The process entering water was divided into several steps, different theoretical models were for each step, together with their force analysis. Relying on our experimenta...

Literature published on the problem of ship slamming in waves is reviewed from the point of view of someone working at a ship research institute. Such an institute is confronted with rather practical questions regarding the acceptability of certain design parameters such as the acceptable amount of bow flare angle for use at sea. The importance of these questions is illustrated by noting that a...

We use the boundary element method (BEM) to study transient plane strain deformations of water induced by a rigid hull impacting at normal incidence initially stationary water occupying a half space with the goal of finding the hydrodynamic pressure acting on the hull. Water is assumed to be incompressible and inviscid, and its deformations to have zero vorticity. Thus deformations of water are...

Due to the complex fluid interference between outrigger and main hull, it is difficult predict trimaran load fluctuation accurately in different marine environments. Therefore, a time-domain Rankine method developed improve accuracy of prediction. This successfully adds nonlinear components simulation by taking into account factors such as instantaneous hull wetted surface, steady ship waves, g...