Факультет психології, історії та соціології
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Item ANALYTICAL MODEL OF A SHIP’S STABILITY ON A REGULAR WAVE(2024) Zinchenko, S.; Tovstokoryi, O.; Kyrychenko, K.; Nosov, P.; Popovych, I. S.; Попович, І. С.One of the main dangers of sailing in storms is the change in the stability of ships due to waves, which in some cases can even lead to its overturning. Therefore, the task of constant control of the ship’s stability during the voyage is an urgent scientific and technical task. A systematic approach, analysis and synthesis, methods of mathematical analysis, integral calculus, and numerical modeling were used during the research. An analytical model was developed for calculating the restoring moment in the roll channel under regular waves, depending on the geo- metric dimensions of the ship’s hull, immersion parameters, ship motion parameters, and wave parameters. The obtained results di↵er from the known solutions in that they have an analytical form and can be used to assess stability in real time. The theoretical significance of the obtained results lies in the development of an analytical model for estimating sta- bility on regular excitation. The practical value of the obtained results consists in: checking the operability of the analytical model during a computational experiment and the possibility of its use in an on-board computer of an automated or automatic control system.Item AUTOMATIC PREVENTION OF THE VESSEL’S PARAMETRIC ROLLING ON THE WAVE(2024) Kobets, V.; Zinchenko, S.; Tovstokoryi, O.; Nosov, P.; Popovych, I.; Попович, I.; Gritsuk, I.; Perederyi, V.Parametric resonance is one of the most dangerous phenomena that occurs during a storm. In the event of a parametric resonance, an undamaged and properly loaded vessel can capsize within seconds. The essence of parametric resonance is to change the parameters of the vessel as an oscillating system. In this case, the coefficients of the differential equations of the vessel model become functions of time. Parametric oscillations are observed at a certain ratio between the frequency of the external influence and the frequency of the system's own oscillations. Parametric resonance in the roll channel is especially dangerous, which leads to a sharp increase in the amplitude of the vessel's rolling, water entering the deck and inside the vessel's hull, loss of stability and possible capsizing. The existing methods of storming are not effective enough, which is due to the use of visual methods for estimating the parameters of turbulence and manual graphic constructions, significant time delays between obtaining data for calculation and determining safe parameters of motion, the lack of constant measurement of turbulence parameters and refinement of safe motion parameters, the difficulty of selecting the dominant factor from the system dangerous factors, intuitive assessment of the level of danger. The authors have developed a method of automatic avoidance of parametric resonance, which differs from existing methods in that it automates the processes of measurement and information processing, reduces delays in decision-making, reduces the influence of the human factor on control processes, reduces crew fatigue, reduces the risks of losing the vessel and cargo, and in general increases the navigation safety. The developed method can be used for both manual and automatic control. In the manual control mode, the shipmaster has the opportunity to use automatically measured information and the results of its processing - visualization of parametric resonance areas and the position of the phase point for making management decisions. In the automatic control mode, the system itself calculates and implements safe movement parameters, and the shipmaster only observes its operation. The obtained results are reproducible and can be used to develop the functionality of automated systems and/or automatic parametric resonance avoidance modules.Item CONTROL OF THE PIVOT POINT POSITION OF A CONVENTIONAL SINGLE-SCREW VESSEL(2023) Kobets, V.; Popovych, I. S.; Zinchenko, S.; Tovstokoryi, O.; Nosov, P.; Kyrychenko, K.; Попович, І. С.The issues of using the pivot point concept for the control of a conventional single-screw vessel are considered. The relevance of the task lies in the need for a more accurate assessment of the vessel's trajectory and the necessary area for maneuvering, since conventional single-screw vessels have low maneuverability, and their share in the total number of vessels exceeds 85%. For manual maneuvering of the vessel, using the pivot point, it is important to know the position of the pivot point relative to a fixed point of the vessel’s hull. Traditionally, this point was the gravity center/middle frame of the vessel. The disadvantage of the existing approaches to the calculation of the pivot point position was the use of a simplified calculation scheme ”gravity center – pivot point”, which did not take into account the dependence of the pivot point position on the rotation center position. In previous works, the authors of this article proposed the “gravity center – rotation center – pivot point” calculation scheme, which made it possible to more accurately estimate the pivot point position, taking into account the position of the rotation center. In the refined scheme proposed by the author, the pivot point position was determined relative to the moving rotation center, which is not convenient for manual control. In this article, for a single-screw conventional vessel, a formula and graphs of pivot point position relative to a fixed point on the vessel’s hull (gravity center/middle frame) are obtained, for the refined calculation scheme “gravity center – rotation center – pivot point”. The obtained formulas and graphs of the pivot point position relative to a fix point (gravity center/middle frame) allow us to use them both for automatic and manual control of the vessel’s movement. Mathematical modeling of a single-screw conventional vessel movement in the closed circuit “Control object – Control system” was carried out for the two considered calculation schemes. The simulation results showed that the use of the refined calculation schem allows for a 23% more accurate assessment of the vessel’s trajectory and the required maneuvering area.Item AUTOMATIC RESET OF KINETIC ENERGY IN CASE OF INEVITABLE COLLISION OF SHIPS(2023) Zinchenko, S.; Kyrychenko, K.; Grosheva, O.; Nosov, P.; Popovych, I. S.; Mamenko, P.; Попович, І. С.Considered issues of automatic reset of kinetic energy along the gradient in case of inevitable collision of ships. The target function of the fastest reset of kinetic energy is formed in the form of a scalar product of the gradient vector at the location of the vessel and the vector of the right parts of the mathematical model of the longitudinal and angular movement channels containing control. To form optimal controls, a nonlinear optimization procedure was used, taking into account control restrictions. The own ship's movement parameters (speed and course) used in the optimization procedure are measured by speed and course sensors, and the target's movement parameters are estimated from the measured values of the own ship's speed and course and the measured relative movement parameters using radar. The workability method was verified by mathematical modeling in a closed circuit with a control object. The results of the simulation showed that the automatic module provides a 9-fold reduction in the kinetic energy of the collision. The use of the automatic kinetic energy reset module in the event of an imminent collision will reduce the influence of the negative impact of decisions when handling a vessel under the influence of stress, reduce crew fatigue, prevent damage or even loss of the vessel and cargo, and save human lives.Item IMPACT OF PSYCHOGENIC FACTORS ON MOTIVATIONAL ORIENTATION OF JUNIOR ATHLETES(2023) Popovych, I. S.; Koval, I.; Zavatska, N.; Hoi, N.; Shchyruk, I.; Domina, H.; Zinchenko, S.; Попович, І. С.The purpose of the empirical research is to find out the impact of psychogenic factors on motivational orientation of junior athletes. The study identified differences in the psychological content parameters reflecting psychogenic factors of junior athletes by high and low levels. The research involved juniors (n=75) (Мe=17; М=17.23; SD=±1.67) representing the following football clubs (n=43): FC “Krystal” (Kherson, Ukraine), FC “Riatuvalnyk” (Mykolaiv, Ukraine), FC “Enerhiia” (Lviv, Ukraine) and juniors (n=32) of handball clubs “Dniprianka” (Kherson, Ukraine) and “Real” (Mykolaiv, Ukraine). Methods: the selected methods, which are reliable and sensitive to the research subject, allowed measuring the research parameters relevantly, ensured external and internal validity. In addition, purposeful observation with entering data in standard reports was used. Statistically significant differences were found by means of standard coefficients. Results. It was empirically established and substantiated that there are dominant negative statistically significant correlations (р<.050; р<.010) of depressiveness (D), neuro-psychic tension (NPT), situational reactive anxiety (SRA) and personal anxiety (PA), spontaneous (Scale II) and reactive aggressiveness (Scale VII) with all the parameters of motivational orientation of junior athletes: subject-directed (Sb); result-directed (R), socially directed (Sc) and personally directed motivational orientation (P). A positive correlation of neuro-psychic tension (NPT) and spontaneous aggressiveness (Scale II) is accounted for by an impact on socially directed motivational orientation. It was proved that there are statistically significant differences between the respondents with a high level of the parameters reflecting psychogenic factors and the subgroup of respondents with a low level. Thirteen statistically significant differences were registered (p≤.050; p≤.010). The study highlights that subject-directed motivational orientation (Sb) is the most dependent on the level of development of the parameters reflecting psychogenic factors. Discussion and conclusions. It was substantiated that the suggested summative research strategy with elements of comparison of the examined variables confirmed its efficiency. The applied methods, which are sensitive to the research subject, allowed establishing and substantiating statistically significant differences. The obtained results should be taken into consideration by coaches in physical and tactical-technical training for the representatives of team sportsItem CONTROL OF THE PIVOT POINT POSITION OF A CONVENTIONAL SINGLE-SCREW VESSEL(2023) Zinchenko, S.; Kobets, V.; Tovstokoryi, O.; Kyrychenko, K.; Nosov, P.; Popovych, I. S.; Зінченко, С. М.; Кобець, В.; Товстокорий, О.; Кириченко, К. В.; Носов, П.; Попович, І. С.The article deals with the issue of reducing the maneuvering area of a conventional single-screw vessel due to the use, when determining controls, of the refined calculation scheme "gravity center – rotation center – pivot point".Item INTELLIGENT SYSTEM CONTROL OF THE VESSEL EXECUTIVE DEVICES REDUNDANT STRUCTURE(2023) Zinchenko, S.; Kobets, V.; Tovstokoryi, O.; Nosov, P.; Popovych, I. S.; Попович, І. С.The article examines the issues of optimal control of vessels with redundant structures of executive devices on the example of an offshore vessel with two stern azimuth control devices (ACD) and a bow thruster. Known technical solutions for optimal control of redundant structures in the aviation, space, marine and other industries. The nearest technical solutions in the shipping are dynamic positioning systems (DP-systems) of manufacturers Navis, Marine Technologies, Rolls Royce, Transas, Consberg. The main purpose of such systems is to maintain the vessel in a given position with the help of active control during work (drilling, cable laying, cargo overloading, etc.). The main components of DP-systems are: sensors for measuring the absolute and relative position of the vessel (DGPS and Reference Systems), onboard computer with software and redundant structures of executive devices. Redundant structures in DP-systems are used to increase the reliability of the automated system. The article developed a method of using redundant structures also for optimization of control processes. The purpose of the work is to automate and optimize the processes of controling vessels with redundant structures of executive devices. On the example offshore vessel with two stern ACD and a bow thruster, optimal controls are considered that ensure: minimum energy consumption for performing DP operations, maximum control forces in the channels of longitudinal and lateral movement, which are used to move away from the platform in the presence of a downwind, as well as reconfiguration of redundant structures. The results of the experiment showed that the optimization of control processes allows to reduce energy consumption by (35–50) % and increase the control forces of the structure in the channels of longitudinal and lateral movement. At the same time, the additional load on the calculation cycle of the on-board controller, caused by the solution of optimization problems, is 25–50 ms, which is within (2.5–5) %.Item OPERATIONALIZATION OF FOOTBALLERS’ EMOTIONAL INTELLIGENCE IN THE DIMENSIONS OF MOTIVATIONAL ORIENTATION: ANALYSIS BASED ON THE BASIC POSITIONS(2023) Popovych, I. S.; Plokhikh, V. V.; Hrys, A.; Pavliuk, M.; Nosov, P.; Zinchenko, S.; Попович, І. С.The purpose is to conduct empirical research on the correlation of emotional intelligence with footballers’ motivational orientation by functional realization (the basic position). The study identifies differences in the parameters of footballers’ emotional intelligence by the basic position. The research involved 74 footballers representing such football clubs: FC “Krystal” (Kherson, Ukraine), FC “Chliba Khersonshchyny” (Kherson, Ukraine), FC “Enerhiia” (Nova Kakhovka, Ukraine), FC “Mykolaiv” (Mykolaiv, Ukraine). Research methods: valid and reliable psycho-diagnostic instruments – the method “EQ questionnaire” (Hall, 2000) and questionnaire “Athlete’s Motivational Orientation” (“AMO”) (Smoldovskaya, 2022); purposeful non-participant observation with standard protocols; statistical methods for identifying significant differences. Results. The study established empirically and substantiated that functional realization (the basic position) in footballers’ competition activities correlates with motivational orientation and sufficiently developed emotional intelligence. The integral index of emotional intelligence (IIEQ) of strikers (Me=38.0) and midfielders (Me=38.0) is characterized by a high level and obvious motivational orientation towards a high result. The study shows that a high level of development of footballers’ ability to manage their emotions and self-motivation corresponds to a high level of involvement in the activity performed and aspiration for team cohesion, for a synergetic contact with spectators. Four strongest (р<.010) significant correlations of self-motivation with subject-directed (rs=.289), result-directed (rs=.344) and personally-directed motivational orientation (rs=.244) and empathy with socially-directed motivational orientation (rs=.267) were established. Conclusions. The study substantiates that focusing on the development of footballers’ emotional intelligence, in particular, of such parameters as selfmotivation and empathy can give an essential advantage over competitors. It shows that the obtained scientific facts constitute a number of operational elements which should be taken into consideration by coaches in team sports.Item AUTOMATIC VESSEL STEERING IN A STORM(2022) Zinchenko, S.; Tovstokoryi, O.; Mateichuk, V.; Nosov, P.; Popovych, I. S.; Gritsuk, I.; Попович, І. С.The issues of automatic vessel control in a storm are considered in the paper. Vessel control in a storm is the most difficult stage in the vessel’s wiring, as it requires quick decisions to be made in difficult conditions. Practical experience shows that the deterioration of the working conditions of the crew is usually associated with an increase in the number of control errors, which is completely unacceptable in stormy conditions. To assess the safe speed and course in a storm, Yu. V. Remez has proposed a universal storm diagram, which allows identifying unfavourable combinations of vessel speed and course angles of the waves – the resonant zones, and avoid them. The universal Remez diagram provides for graphical calculations, which, in combination with the visual determination of the wave parameters, gives a very low accuracy. The article examines the possibility of automatic control of a vessel in a storm by automatic measurement of motion parameters and wave parameters, automatic calculation in the on-board controller of the vessel optimal safe speed and course during a storm, automatic maintenance of the optimal safe speed and course of the vessel. The automatic control significantly increases the accuracy of calculations, excludes the human factor, reduces the depletion of the crew, and increases the reliability of the vessel control in a storm. The efficiency and effectiveness of the method, algorithmic and software were tested on Imitation Modelling Stand in a closed loop with mathematical vessel models of the navigation simulator Navi Trainer 5000.Item NEW APPROACH TO MODELING DEEP INTUITION(2021) Prokopchuk, Yu.; Nosov, P.; Zinchenko, S.; Popovych, I. S.; Попович, І. С.