PRACTICAL METHODS FOR CALCULATING THE POSITION OF THE BASIC POINTS OF THE SUBSTANTIVE MODEL OF THE SHIP'S TURN
https://doi.org/10.33815/2313-4763.2025.1.30.247-257
Abstract
The object of the study is the process of turning the ship. It is necessary to numerically calculate the positions of all the base points of the substantive model.
Knowledge of the substantive model of ship turning and methods for calculating the positions of the base points allow us to calculate the process of turning the ship and determine the positions of the base points. The position of the center of gravity is taken from the ship's cargo plan. The position of the pivot point and the position of the center of rotation are determined by simple experimental and experimental-calculation methods.
Determining the position of the center of rotation and the pivot point makes it possible to determine the position of the ship during turning much more accurately, which will increase the safety of navigation.
Determination of the abscissa of the pivot point by the tangential speeds of the bow and stern can be used for a vessel with any type and number of main engines and any type and number of thrusters.
Determination of the displacement of the center of rotation from the center of gravity by comparing the positions of the abscissa of the pole of rotation at zero and maximum vessel speeds, determined by the tangential speeds of the bow and stern, can be used for a vessel in which the lateral force is generated in different ways, but in the same place both at zero speed and at full speed.
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