A critical aspect affecting the reliability of the results is the fidelity with which the metocean conditions are represented. Aktis Hydraulics supports site selection and various weathervaning mooring system operational decision parameters including required tug support for station keeping and workability of tandem transfers, drilling operations and site availability assesments for STS cargo transfer.
Typically, an heading analysis is performed for the contemporaneous wind, wave and current conditions as they simultaneously act on the vessel.
For example, if there are cross seas or large differences in wave and current direction, the Ship-To-Ship operations between a FSRU and LNGC may be subjected to beam waves hampering operations. In general, these have a much worse effect on the availability than head waves. The strong point of Aktis’ approach is the availability of all aspects (coastal metocean conditions, ship hydrodynamics and ship response) that determine the outcome.
Heading of vessel and probability of occurance
(example below shows 4 different sites)
