The analytical method for predicting the dynamic responses of a ship in a collision scenariofeatures speed and accuracy,and the external dynamics constitute an important part. A 3D simplifiedanalytical method is implemented by MATLAB and used to calculate the energy dissipation of ship-shipcollisions. The results obtained by the proposed method are then compared with those of a 2D simplifiedanalytical method. The total dissipated energy can be obtained through the proposed analytical method,and the influenc...