Numerical seakeeping analysis determines the motions and accelerations of the ship subjected to waves, wind and current. These factors impact directly on the design of the vessel. Ship motions may hinder the vessel’s ability to complete its mission and are therefore taken into consideration when determining the principal dimensions of the ship and in developing the lines and general arrangement.
AQWA is a 3D diffraction multibody panel code. With our AQWA software from ANSYS, we can analyse the relationship between the environmental conditions and the ship’s movements and predict the ship’s response. It is then possible to optimise the design for a specific purpose and to comply with specific performance criteria.
With a numerical seakeeping analysis in frequency and time domain, it is possible to determine under which conditions the vessel is able to perform a given operation. The software tool can also be used to calculate lifting operations, mooring analysis, hook load forces and dynamic factors in cranes.
Numerous seafastening designs for wind turbine generator sets, lifting operations, ship helicopter operational limits (SHOL) and ship/ship interaction have been investigated by OSK-Offshore A/S using AQWA.