Кваліфікаційні роботи здобувачів вищої освіти кафедри кафедри авіаційного транспорту

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Browsing Кваліфікаційні роботи здобувачів вищої освіти кафедри кафедри авіаційного транспорту by Author "Hryshko, Davyd"

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    Methodological bases for maintaining the operational reliability of the fuel system of a long-range passenger aircraft with two turbojet engines
    (National Aviation University, 2022-11) Hryshko, Davyd; Гришко, Давид
    The main purpose of the aircraft's fuel system is to ensure the timely delivery of fuel to the aircraft's engines. The aircraft's fuel system includes a fuel placement system in the aircraft, a fuel supply system for the engines, a fuel measurement system in the tanks, and a refueling system. Wings, which are hollow and divided into compartments, serve as a FT in most aircraft, and it also serves as a wing amplifier. From the inside, the entire surface of the FT is covered with a special sealing composition to prevent fuel leakage through the contact surfaces. When the wings of the aircraft are made, this mixture is applied to the inner surface of the caisson when it is in a liquid state, then on a special stand, the caisson rotates in all planes, ensuring uniform spreading of the sealing compound over the entire inner surface. The principle of the power plant of all aircraft consists in the autonomous power supply of each engine from its own tank. Another feature of the FS is the cooling of engine oil, air conditioning systems, aggregates, radio-electronic equipment, aircraft balancing, generator constant speed drive, etc., and also as a working body in various automatic devices. For example, control of the inlet guide vanes and control of the jet nozzle flaps. The main requirements for aviation fuel systems are: reliability, survivability, fire safety, compliance with mass-dimensional characteristics, maximum simplicity of construction, maintainability and controllability, operational manufacturability, ensuring the necessary strength and vibration resistance of its elements. Fuel systems of modern aircraft are a complex complex of a large number of interdependent subsystems: fuel supply to engines, fuel pumping, control of the order of fuel use from tanks, refueling and draining of fuel tanks, refueling and draining of fuel on the ground. and during flight cooling and control. Due to the large number of functional and structural connections in the fuel system during design, it is necessary to study and compare various design options, and apply optimal solutions that ensure the creation of the most profitable system for a specific aircraft. The analysis of fuel systems is the most important stage in the creation of an AFS, starting from the solution of external tasks and ending with design decisions in the system and its elements.