Results 11 to 20 of about 10,232 (233)
High-Speed, Maneuverable, and Terrain-Adaptive Micro-Robot with Tree Frog-Inspired Bionic Feet. [PDF]
Adv Sci (Weinh)A 7.5 mm micro‐robot integrates tree frog‐inspired bionic feet with an electromagnetic linear motor to achieve high‐speed locomotion, slope climbing, and precise turning. It reaches 39 body lengths per second and ascends 30° slopes. The system demonstrates strong potential for inspection tasks in confined and complex environments, such as micro‐aero ...
Zhao W +10 more
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Impact of Using Chevrons Nozzle on the Acoustics and Performances of a Micro Turbojet Engine
Applied Sciences, 2021 This paper presents a study regarding the noise reduction of the turbojet engine, in particular the jet noise of a micro turbojet engine. The results of the measurement campaign are presented followed by a performances analysis which is based on the ...
Grigore Cican +2 more
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Ecologic performance and sustainability evaluation of a turbojet engine under on-design conditions
Aviation, 2018 Interest in air transportation in the last decade has seen aviation fleet growth and a rise in the energy consumption of aircraft. In accordance with the latest data, the air transportation sector consumes 7.5% of total oil consumption worldwide.
Yasin Şöhret
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Robust Control of Small Turbojet Engines
Machines, 2019 Modern turbojet engines mainly use computerized digital engine control systems. This opens the way for application of advanced algorithms aimed at increasing their operational efficiency and safety.
Rudolf Andoga +5 more
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Medium independent jet (MI-Jet) engine
Propulsion and Power Research, 2020 MI-Jet or medium independent jet engine is a new conceptual design which can be used in any gaseous atmosphere or in any planets with an ISP greater than that of the existing rocket engines.
Prajith Kumar K P, Aravind Vaidyanathan
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Intelligent Thermal Imaging-Based Diagnostics of Turbojet Engines
Applied Sciences, 2019 There are only a few applications of infrared thermal imaging in aviation. In the area of turbojet engines, infrared imaging has been used to detect temperature field anomalies in order to identify structural defects in the materials of engine casings or
Rudolf Andoga +6 more
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International Journal of Turbomachinery, Propulsion and Power, 2022 Presented herein is a comparative performance analysis of a novel turbofan engine with an auxiliary combustion chamber, nicknamed the TurboAux engine, against a turbojet engine, and a low bypass ratio turbofan engine with an afterburner is presented. The
Kaleab Fetahi +2 more
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TURBOJET BYPASS ENGINE WITH AFTERBURNER WITH WATER INJECTION AFTER INPUT UNIT PERFORMANCE ANALYSIS
Авіаційно-космічна техніка та технологія, 2019 Development of perspective high-speed aircraft inseparably depends on the level of aircraft propulsion engineering as engine performances to determine aircraft capabilities as a whole. The basic requirements to engines of high-speed aircraft are increase
Юрий Александрович Улитенко
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Three-Dimensional Optimization of Blade Lean and Sweep for an Axial Compressor to Improve the Engine Performance [PDF]
Journal of Applied Fluid Mechanics, 2023 Nowadays, optimization methods have been considered as a practical tool to improve the performance of turbo-machines. For this purpose, the numerical study of the aerodynamic flow of the NASA Rotor-67 axial compressor has been investigated, and the ...
M. Heidarian Shahri +2 more
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A comprehensive approach to understanding irreversibility in a turbojet
Propulsion and Power Research, 2018 Regarding interest in and concerns about high efficiency in recent times, an irreversibility assessment of energy conversion systems is significant. Turbojets, a type of energy conversion system, are widely used to provide thrust for aerial vehicles ...
Yasin Şöhret
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