Registration Number
0226U001818,
(0125U001783)
, R & D reports
Title
Using the pivot point to optimize vessel maneuvering processes in restricted waters
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Пошук аналогів та прототипів. Розробка методів автоматичного керування обертанням судна навколо полюсу повороту без дрейфу
Head
Tovstokoryi Oleh M., к.т.н.
Registration Date
31-01-2026
Organization
Kherson State Maritime Academy
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research of the vessel’s rotation processes based on the concept of the pivot point, reducing, due to this, the maneuvering area, which is especially important in restricted waters, developing models and methods for controlling the vessel
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Today, in the scientific and technical literature on the pivot point, a 2-point scheme of vessel rotation “Center of gravity - Pole of rotation” is used. In previous works, the author proposed to use a 3-point turning scheme, where the third point is the rotation center. The use of a 3-point turning scheme made it possible to explain the dependence of the position of the pivot point on both the longitudinal speed and the point of application of the lateral force. The author develops a new substantive model of the vessel's turning and a "Memo for the Navigator". The new substantive model and "Memo..." will reduce control errors and increase maneuvering safety, which is especially important in restricted waters. The results obtained are explained by the fact that, unlike known approaches: the new substantive model is built on the basis of a 3-point turning scheme, which takes into account an additional point - the center of rotation; the position of the pivot point is determined relative to the rotation center, and not relative to the gravity center; the position of the pivot point is determined on the plane, through the abscissa and ordinate of the pivot point. 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.
Product Description
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2026-02-01
