Bright Engineering regularly performs sea fastening calculations. The extent of the calculations varies. Sometimes analytical calculations are enough. Other times, FE models are used. If necessary, we make the FE model more complete by plate meshing parts of the ship and include it in our FE model together with the grillage and the sea fastened items.
One of the companies we regularly do sea fastening calculations for is Blue Offshore. Blue Offshore rents out basket carousels, loading towers and other cable lay equipment. This equipment is placed on the client's vessel or barge requiring sea fastening calculations for every project.
For one of the projects of Blue Offshore, two basket carousels were placed on a transport barge. After the sea going conditions were defined, Bright Engineering made extensive analyses to make sure that the almost 10,000 tonnes of payload could be transported safely.