Rubber fenders (br), also known as rubber fenders, are installed on docks or ships to absorb the collision energy between ships and docks or ships when docking or mooring, and to protect ship docks from damage. Rubber fenders are a kind of protective device suitable for ships, ports, terminals and other places. They can fully absorb the energy of a collision, reduce the collision force to the maximum extent, and ensure the stability and integrity of the hull and terminal. They have the following advantages:
Reaction force Small surface pressure and reasonable energy absorption
Simple shape, easy installation and maintenance
Not affected by the size of the ship terminal, wide range of uses
Strong adaptability to the roll and pitch of ships docked
Classification of rubber fenders:
Generally, rubber fenders can be divided into two categories according to their structures: solid rubber fenders (non-floating type) and floating rubber fenders.
Solid rubber fender (non-floating type) is an anti-collision equipment for dock ships with an early application history and a wide range of applications. According to the stress conditions of rubber fenders, they can be divided into shear type, rotation type and compression type. According to the structure of the fender, solid rubber fenders can be divided into conical, drum, sector, rectangular, cylindrical fenders, etc.
Floating rubber fenders can float freely on the water and can be divided into: inflatable rubber fenders and filled rubber fenders according to their internal buffer media.
Inflatable rubber fenders (ball-based) use air as the medium and use compressed air to absorb impact energy to make the ship more flexible and softer when docked, so as to achieve the effect of anti-collision and avoidance. Compared with the traditional spring-loaded rubber fender, it has the characteristics of large impact energy absorption, small ship reaction force, simple installation, good elasticity, no deformation under the action of compression, and more practical and economical weight.
Foam-filled fenders are also called solid polyurethane fenders. The internal buffer medium is mainly closed-cell foam materials, such as foamed polyurethane and foam rubber.
Characteristics of rubber fenders and Application:
Solid rubber fenders have high energy absorption and reaction force, and also have the advantages of low cost, long service life and simple installation and maintenance. They are the most commonly installed protective devices in docks and docks.
Floating rubber fender is a new type of fender equipment. Compared with solid rubber fender, its main features are: large compression deformation, large energy absorption and small reaction force, self-floating, easy to install, etc. It is usually used in situations such as ship-to-ship and ship-to-pier barge docking. Due to its self-floating characteristics, it is also particularly suitable for installation at docks where the tide level changes greatly. Among them, filled rubber fenders are particularly suitable for applications in harsh environments, such as offshore drilling platforms, due to their maintenance-free and long life.
Rubber fender ship fender large mouth fender