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Controller Design for Micro Turbojet Engine
2020 12th International Conference on Electrical Engineering (ICEENG), 2020Modern turbojet engines are controlled using digital controllers. First of all, the micro turbojet engine discrete model is identified. System identification technique utilized real data obtained from jet cat P200sx engine running experiments. Digital PID controllers are mostly used for controlling these engines.
Ahmed M. shehata +2 more
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Afterburners for Turbojet Engines
Journal of the Aeronautical Sciences, 1948The general problem of pure jet aircraft take-off distance is indicated, and the basic reasons for the excess-thrust deficiency as compared to propeller aircraft are shown. The inherent advantages and disadvantages of several methods of short-duration thrust augmentation, such as fluid injection or rocket boosters, to alleviate the difficulties are ...
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Availability Analysis of a Military Turbojet Engine
Journal of Failure Analysis and Prevention, 2019Availability analysis has been performed on a military turbojet engine using commercially available reliability software. Failure data of the engine over a period of 7 years are considered. The failures/defects are categorized, and then analysis is performed for the major defects.
R. Ragupathy, R. K. Mishra
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Reduction of Turbojet Engine Noise
2004The urgency of the problem of jet noise reduction has been rising again at the present stage of aircraft technology development. The main reasons are the following. The studies of attenuation of turbo-machine noise have demonstrated that the jet is one of the main noise sources even in engines with high by-pass ratios.
Ye. V. Vlasov +2 more
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Development study of a precooled turbojet engine
Acta Astronautica, 2010Abstract A precooled turbojet engine has been developed by JAXA used for the hypersonic airplane and spaceplane. The subscale engine named “S-engine” whose thrust and weight are about 1.2 kN and 100 kg was designed, fabricated and tested. The components and the system firing tests under the sea-level-static condition were successfully conducted.In ...
Tetsuya Sato +8 more
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Variable Structure Control of a Turbojet Engine
1986 American Control Conference, 1986We study the fuel control problem of a single-spool turbojet engine. A transfer function approximation method is utilized to identify linear models about operating points. Then, a sliding mode control is developed to regulate the fuel flow so that the engine speed and temperature are within their physical constraints, based on the identified linear ...
Cheng-Wu Chen +2 more
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Exergetic and Environmental Analyses of Turbojet Engine
2019This study deals with exergetic and environmental analyses of turbojet engine used on the military training aircrafts. In the analysis, the engine data measured in the Engine Test Cell at First Air Maintenance and Factory Directorate of Turkish Air Forces in Eskisehir, Turkey are utilized.
Balli, Ozgur +4 more
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Sustainability Metrics of a Small Scale Turbojet Engine
International Journal of Turbo & Jet-Engines, 2018Abstract Over the last decade, sustainable energy consumption has attracted the attention of scientists and researchers. The current paper presents sustainability indicators of a small scale turbojet engine, operated on micro-aerial vehicles, for discussion of the sustainable development of the aviation industry from a different perspective ...
Selcuk Ekici +4 more
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Advanced methods of turbojet engines' control
2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI), 2010The article deals with modern concepts of control systems used in turbojet engines. We specifically aim on description of control systems using methods and concepts of artificial intelligence, which can bring a new quality in terms of operation and safety of turbojet engines' operation.
J. Judicak +3 more
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Calculation of Windmilling Characteristics of Turbojet Engines
Journal of Engineering for Power, 1981The operation of a turbojet engine under windmilling conditions was analyzed and the relationship of engine speed and airflow has been derived. Replacing the efficiencies of compressor and turbine by a total pressure loss coefficient, the author was able to obtain the equations for matching the engine components and the universal curve of windmilling ...
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