Вестник МГТУ. 2018, №4.

Вестник МГТУ. 2018. Т. 21, № 4. С. 566-576. DOI: 10.21443/1560-9278-2018-21-4-566-576 In this case, the slider (engine order telegraph) is set on Half Ahead, the speed has not yet reached the specified set point. The other controls (the rudder and maneuvering device) are not associated with the moves. After moving the slider, the system of the differential equations' integration (mentioned above) operates. Here ahead and astern direction of the vessel can be arbitrarily changed as necessary in such maneuvers. The ship, which is operated, is located in the lower right corner of the water area. After the closure of the control we see the full trajectory of the vessel in the water area. Conclusions The above solutions and results presented in the numerical and graphical forms allow us to draw the following conclusions. 1. The modified curves of the screw action correctly reflect the results in all quadrants of the screw blade inflow angle. 2. The problem with the cyclic reverse vessel movement, typical of maneuvering, for example, while hose-mooring at the oil terminal, is simply solved with the help of these curves. 3. These curves can also be used in solving maneuvering problems with an arbitrary change in the engine speed. 4. The considered approach to modelling is easily implemented in the interface maneuver control of computer simulators. 5. MathCad provides convenient built-in tools for solving similar research problems, but the interface control tool has to be created in a different programming environment (C++, VB6). References 1. van Lammeren W. P. A., van Manen J. D., Oosterveld M. W. C. The Wageningen B-screw series // The Society of Naval Architects and Marine Engineers. Transactions. 1969. V. 77. P. 269-317. 2. Miniovich I. Ya. Investigation of hydrodynamics characteristics of screw propellers under conditions of reversing and calculation methods for backing of ships. Bureau of Ships, Washington D. C. : Defense Technical Information Center, 1960. 64 p. 3. Meyne K. I. Umsteuereigenschaften von Schiffspropellern // Schiff und Hafen. 1964. Heft 5. 4. Harvald Sv. Aa. Wake and thrust deduction at extreme propeller loadings // Meddelanden Iran Statens skeppsprovningsanstalt / Statens skeppsprovningsanstalt. Goteborg : Gumperts forl., 1967. N 61. P. 1-47. 5. Handbook of ship theory : in 3 v. V. 1. Hydromechanics. Resistance to the movement of ships. Ship propulsion / ed. Ya. I. Voytkunsky. L. : Sudostroenie, 1985. 764 p. 6. Gofman A. D. Propulsion and steering complex and maneuvering the ship : handbook. L. : Sudostroenie, 1988. 360 p. Библиографический список 1. van Lammeren W. P. A., van Manen J. D., Oosterveld M. W. C. The Wageningen B-screw series // The Society of Naval Architects and Marine Engineers. Transactions. 1969. V. 77. P. 269-317. 2. Miniovich I. Ya. Investigation of hydrodynamics characteristics of screw propellers under conditions of reversing and calculation methods for backing of ships. Bureau of Ships, Washington D. C. : Defense Technical Information Center, 1960. 64 p. 3. Meyne K. I. Umsteuereigenschaften von Schiffspropellern // Schiff und Hafen. 1964. Heft 5. 4. Harvald Sv. Aa. Wake and thrust deduction at extreme propeller loadings // Meddelanden fran Statens skeppsprovningsanstalt / Statens skeppsprovningsanstalt. Goteborg : Gumperts forl., 1967. N 61. P. 1-47. 5. Справочник по теории корабля : в 3 т. Т. 1. Гидромеханика. Сопротивление движению судов. Судовые движители / под ред. Я. И. Войткунского. Л. : Судостроение, 1985. 764 с. 6. Гофман А. Д. Движительно-рулевой комплекс и маневрирование судна : справочник. Л. : Судостроение, 1988. 360 с. Information about the author Pashentsev S. V. - 13, Sportivnaya Str., Murmansk, Russia, 183010; Murmansk State Technical University, Cand. of Phys.-Math. Sci., Professor; e-mail: serpass15@yahoo.com Пашенцев Сергей Владимирович - ул. Спортивная, 13, г. Мурманск, Россия, 183010; Мурманский государственный технический университет, канд. физ.-мат. наук, профессор; e-mail: serpass15@yahoo.com 575