A boat fender is a bumper used to absorb kinetic energy. Kinetic energy is released when vessels move against berthing structures. Boat fenders are employed in all varieties of ships. Yachts, ferries, cruise ships and cargo ships are among the vessels that have boat fenders. Boat fenders protect the vessels from berthing structures. The the high energy of absorption and low reaction force make the boat bumpers be used. Boat fenders are manufactured from rubber, foam, plastic or elastomer. Rubber bumpers are designed in a mould. The type of fender used is dependent on many factors.
Another the influence that contributes is the measurements of the boat and the level of displacement of the vessel. The mooring structures and maximum allowable standoff are other variables considered. The tidal energy affects the type of bumper used. The size of the bumper is based on berthing energy of the vessel is related to the square of the docking speed.
Fenders were made using woven ropes in the past. The rope fenders are still used today by people who own vintage boat. Small leisure boats and yachts have mobile fenders. Their boat fenders are put on the vessels and the dock as the vessel as the boat comes close to the dock. Docks have permanent fenders that help protect the vessels from damage. Used tires are used as boat fenders in those places.
Ports and docks have fenders in them. The boat fendering systems are elastic buffers that are used to slow ships down and prevent the ship from being damaged. There are two kinds pumping systems. The initial one is the ship to dock fendering. The fenders are floating and fixed. The fixed fenders are put on the berth structures. Floating berth fenders are put in between the vessels and berthing structures. Floating fenders include foam-filled fenders and pneumatic fenders.
The temperatures and the salt content of water determine the design of the fender. Damaged bumpers are restored by the vessel or the port owners. A different kind of fendering system is the ship to ship. That sort of fendering used for cushioning between two boats. Floating fenders are used for this purpose.
Another type of fenders is the inflatable bumpers. Inflatable fenders are made to protect yachts, motorboats and sailboats from damage. An inflatable fender protects the fender when docking. Inflatable fenders can be folded easy and carries with ease. Inflatable fenders can be stored in tiny spaces. inflatable fenders are quickly inflated and ready to use.
There are different fender systems designed worldwide. The a typical model is PIANC which was built in 2002. This system was updated from the one made in 1984. The Japanese use the Japanese fender system for their vessels. The British model is used in both the United Kingdom and the United States of America. The fender system is determined by the docking of a ship. It also considers the size of the vessel. Take a look at this link https://en.wikipedia.org/wiki/Fender_(boating) for more information.