Pasechnyuk S. Perfection of methods of warning of collision of ships by application of general maneuver of divergence

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0421U100182

Applicant for

Specialization

  • 05.22.13 - Навігація та управління рухом

26-01-2021

Specialized Academic Board

Д 41.106.01

National University "Odessa Maritime Academy"

Essay

Strategies of divergence of ships which are dangerously drawn together are explored in work, by the regions of dangerous courses and speeds. At first got procedures of forming of region of dangerous courses of one ship and speeds of the second ship taking into account their correlation of speeds and dynamics. The method of forming of regions is got for the case of ships with duration of transitional processes of change of courses and speeds by which it is possible to scorn. Also considered procedures of forming of regions of dangerous courses of one ship and speeds of the second ship, which have considerable inertia. Got methods of forming of regions in the case of decline of speed of the second ship by the active or passive braking. More difficult situation of rapprochement of two ships is also considered at presence of the third ship, that prevents, and the method of choice of safe maneuver of divergence is offered taking into account the third ship, that prevents. Explored influence of stochastic errors of measuring of bearing and distance of ship on the parameters of maneuver of divergence, taking into account dependence of size maximum - possible distance of rapprochement from the errors of measuring. It is shown that the size of its stochastic constituent depends on the law of distributing of vectors position error. Finishing subsection contains the results of model supervisions of errors of measuring of bearing and distance. Description of the imitation computer program for verification of correctness of the method of choice of safe maneuver of divergence of ships got in dissertation work by the compatible change of course of one ship and speed of other ship it is resulted in completion of work. The results of imitation design of maneuvers of divergence laid out in a fifth section in the offered situations of dangerous rapprochement confirm correctness of the developed method of choice of compatible maneuver of divergence of ships by the regions of impermissible parameters taking into account the presence of the third ship, that prevents, or without him. The dissertation has improved the way formation of an area of unsafe courses and speeds of a pair of ships, taking into account the ratio of their speeds with locally independent control and the method formation of areas of unsafe courses and speeds of a pair of ships, taking into account their inertial-braking characteristics, and was further developed the procedure of determining the parameters of the joint maneuver of the divergence of ships, taking their dynamics. Keywords: safety of navigation, warning of collisions of ships, external management, regions of dangerous values of parameters of motion of ships, general maneuver of divergence.

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