Cone rubber fender is a common ship fender device, mainly used between docks, docks or ships, to protect ships and dock structures from damage by absorbing collision energy. The following is a detailed introduction to conical fenders:
1. Structure and characteristics
Appearance: Conical or truncated cone, usually made of rubber (natural rubber or synthetic rubber), may contain reinforcing materials (such as steel plates, fiber curtains) inside to increase strength.
Design principle: Disperse and absorb collision energy through deformation to reduce impact force.
Installation method: Usually fixed to the dock or the side of the hull by bolts or chains, or hung on both sides of the ship.
2. Main types
Fixed conical fender: Permanently installed on the dock or ship, suitable for frequent berthing scenarios.
Floating conical fender: Can float with water level changes, often used in ports with large tidal range.
Inflatable conical fender: Internally inflated, better buffering performance, but higher maintenance requirements.
3. Performance parameters
Energy absorption capacity: depends on the size, material and structural design of the fender, usually in kilojoules (kJ).
Reaction force: the rebound force generated by the fender when under pressure, which needs to match the tonnage of the ship.
Durability: resistant to seawater corrosion, ultraviolet rays (UV) and repeated compression.
4. Application scenarios
Dock anti-collision: installed at the front of the dock to protect the dock structure.
Ship berthing: used for buffering between ships or between ships and docks.
Special environment: such as liquefied natural gas (LNG) docks, offshore platforms, etc., which require explosion-proof or low-temperature resistant design).
5. Advantages and limitations
Advantages:
Simple structure, easy installation and maintenance.
Low cost, suitable for small and medium-sized ships or temporary berths.
Size and hardness can be customized according to needs.