As for a ship oscillating at free surface with frequency that ranges from those that are common for ship motion in waves to very high frequency associating with the impact problem, the vertical force acting on the ship for the lower limit of frequency range is dominated by gravity effect, which is usually ignored in the impact theory. As a consequence there must be a transition range in between...

Syntactic foams are particulate composite materials that are extensively integrated in naval and aerospace structures as core materials for sandwich panels. While several studies have demonstrated the potential of syntactic foams as energy absorbing materials in impact tests, our understanding of their response to water impact remains elusive. In this work, we attempt a first characterization o...

Choosing the right hull shape is important in designing a ship, for example, U-section or V-section of hull. The will affect various aspects, such as design, resistance, seakeeping, structure and production. ship must be properly designed so that it can operate according to ship’s mission. From seakeeping aspect ship's motion at sea, difference result different motions dynamic effects slamming ...

Abstract The inelastic deformation of a 30 m high-speed craft (HSC) subjected to slamming pressure is the main topic this research. In work, commercial software package ABAQUS FEA used predict structural behavior, especially in hull area under chine. Dynamic explicit solver simulations are done plastic deformation. Before principal analysis actual size ship structure model, numerical studies we...

A numerical simulation method is presented by integrating Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) solvers to predict ship wave loads slamming taking into account hydroelastic effects. The interest of this study mainly lies in the green water pressures acting on a flexible investigated coupled CFD–FEA method. Firstly, verification sensitivity analysis S175 containers...