2018

Постійне посилання на фонд

https://eir.nuos.edu.ua/handle/123456789/3325

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Перегляд 2018 за Ключові слова "autonomous uninhabited underwater vehicle"

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    Mathematical modeling of an autonomous uninhabited underwater vehicle dynamics with propeller in the rotary nozzle
    (2018) Hrudinina, H. S.; Грудініна, Г. С.
    In this paper, the research of hydrodynamic characteristics of a rotary screw column in the propulsion and steering complex (PSC) of an autonomous uninhabited underwater vehicle (AUV) is being carried out. These characteristics include: the change of the propeller thrust force and the force on the propeller shaft, during the change in the incident flow angle. To obtain the required characteristics, the method of mathematical modeling of the AUV plane motion in the Simulink system was applied. The improved mathematical model of the vehicle rectilinear motion was performed by supplementing its equations, which allows to simulate the operation of the PSC, “propeller–rotary nozzle”, in the downwash water flow. The propeller operation design in the guide nozzle in a direct and downwash water flow at the underwater vehicle different speeds is carried out. Vehicle speed and shaft speed graphs were obtained. The dependences of the change in propeller thrust force on incident flow angle are plotted for various underwater vehicle traverse speeds. The possibility of accounting for the significant nonlinear dependence of the propeller thrust force and the propeller shaft force on the incident flow angle is the scientific novelty. Practical significance of the work lies on the possibility of improving the AUV control quality by compensating for the changes in the propeller thrust force and force on the propeller shaft. It will be particularly relevant to use the obtained characteristics in the development of control systems for AUV trajectory motion.