Page 2-3 - banneredGoodyear Marine Fenders

GOODYEAR ENGINEERED PRODUCTS
For 50 years, Goodyear Engineered Products has specialized in moulded and extruded rubber products, particularly dock
fenders. The rubber is mixed on site to ensure faultless product quality and uniformity. Cutting edge equipment and Goodyear EP
own quality control lab enable the company to equal or exceed the highest industry standards. Our factory is certified ISO 9001 and
TS 16949, thus guaranteeing exacting quality assurance. Moreover, we can produce tailored dock fenders of lengths of up to 30 ft. and
have the resources to carry through very short turnaround projects.
Veyance Technologies Inc. is the sole authorized manufacturer and seller of Goodyear products.
TECHNICAL DISCUSSIONS
Since the purpose of a Dock Fender system is to absorb the energy of a berthing ship, it is necessary to examine the factors that make up the total
energy package. These factors are:
1 Weight of the vessel in displacement tons.
2 Berthing velocity normal to the dock.
3 Angle of approach.
5 Dock design.
Experience has shown that even though all of the above factors can and do vary, it is necessary to arrive at a reasonable estimation of the energy to
be absorbed by the fenders. The amount of energy that can be absorbed by the fenders can be determined with acceptable accuracy; however,
the energy being absorbed by the dock and the vessel itself as well as that being dissipated by the water can only be approximated. We know, for
example, that a dolphin supported by piling will absorb a greater percentage of a given amount of energy than a solidly constructed dock. The
fact that the piles are free to deflect allows the dolphin to absorb energy. A wharf that is backed by land is not designed to deflect and
therefore a greater amount of energy must be dissipated by the fenders themselves.
UNERRING
STATE-OF-THE-ART CHEMISTRY
The kinetic energy possessed by a moving vessel can be determined by the following equation:
(1) KE = ½ (W/g) V E
2 where W = Weight of the vessel in pounds (Displacement tonnage x 2240 lbs.)
VE = Velocity in feet per second normal to the dock
g = Acceleration due to gravity (32.2 ft/sec)