The Berthing Condition of Oil Tanker Under the Acting of Wave

Two energy methods for calculating the impacting loads of oil tanker on the fenders are introduced.One is the formula given in the port engineering criteria by Chinese port authority,another is the formula recommended by the international conference committee of ship navigation.A strip method is used in this paper to calculate the six degree of freedom motions of an oil tanker in waves,and the effect of the motions of the oil tanker on the impacting energy is considered.Based on the results,the maximum transverse velocity of the oil tanker is obtained,which is the allowable transverse velocity of the oil tanker under the combined action of wind,tide and the tugboat when the tanker is berthing to an offshore platform.