When operating mooring a boat for various purposes, it is often necessary to moor the boat in the open sea. These activities include transferring the catch from fishing boats to floating fish factories or transport refrigerators, cargo operations at floating drilling rigs, and receiving fuel and supplies from special supply boats. To perform these works and similar works, the ship is moored to another ship or floating object.
Due to the increased size of oil-loading ships, fixed and floating berths have become very common. They allow large-capacity vessels to carry out loading and unloading operations without resorting to expensive works on deepening the water area of ports.
Floating single mooring buoys allow the tanker to be moored at a single point. The volume displacement of such buoys is very large,
they are designed for a large mooring force. A system of anchor ropes and dead concrete anchors is used to hold the buoy.
When mooring in the open sea, the elements of the mooring device are in conditions that differ significantly from those when mooring at a berth in a closed water area. When the main load on the mooring lines is determined by the force of the wind and the slow movements of the ship associated with cargo operations, tides and tides. Mooring in the open sea, the tension of the mooring lines is determined by the mutual movements during the rolling of objects. In these conditions, the elasticity of mooring ropes is even more important, since rigid connection of objects is obviously impossible.
Mooring a boat
The change in the distance between ships depends on many conditions: the ballance of the wave, the direction of the waves, the shielding action of the ships, the elasticity and length of the mooring ropes. Such a large variety of factors complicates the task of the designer, which is to create a sufficiently tight connection between the vessels that can withstand the forces that cause the relative movement of the boats. At the same time, it is necessary to protect the side structures of mooring boats from damage, this is achieved by the developed fender protection.
It should be borne in mind that significant dynamic loads occur when vessels approach each other when parked together on the high seas. The most widely used removable mooring fenders, It is a bag tightly Packed with a tiny cork, hemp or synthetic waste.