Results 1 to 10 of about 415 (187)
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
europepmc +2 more sources
An example of use of gas turbine engine compressor, which has been mastered in production and has good characteristics in a new product project [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022 The development of a new gas turbine engine requires a lot of time and money spent on the design and testing its compressor, which has been shown as the most complex and time-consuming assembly unit of the engine.
A. V. Grekhnev
doaj +1 more source
Research on the Application of Integrated Design on Micro Turbojet Engine
Hangkong gongcheng jinzhan, 2022 There are no detailed design criteria and methods for the integrated design of micro turbojet engine.The size and weight design and evaluation method for turbojet engines are used to perform the integrated design of several 9~80 kgf micro turbojet ...
CHEN Minze +4 more
doaj +1 more source
Aerospace, 2022 Turbojet engines have a slow response and require mechanical assistance to perform vertical take-offs and landings. In this paper, we propose a vertical take-off and landing (VTOL) aircraft that contains one-dimensional thrust vectoring nozzle modules to
Benshan Liu +6 more
doaj +1 more source
Авіаційно-космічна техніка та технологія, 2023 Despite the technological advances that made it possible to create serial commercial micro-turbojet engines with a thrust of up to 1.0 kN, engines of this type in the class of high-speed unmanned aerial vehicles (UAVs) weighing up to 200 kg have not yet ...
Olexander Khrulev
doaj +1 more source
DEVELOPMENT OF A DYNAMIC MODEL FOR SIMULATION OF REAL-TIME TRANSIENT TURBOJET ENGINE PERFORMANCE IN SIMULINK [PDF]
مجله مدل سازی در مهندسی, 2017 This study deals with developing a dynamic model with capacity for use in aero-Thermodynamic real-time performance modeling of turbojet engines in MATLAB/Simulink environment.
Mohammad Faraji +4 more
doaj +1 more source
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
doaj +1 more source
Mach 4 Simulating Experiment of Pre-Cooled Turbojet Engine Using Liquid Hydrogen
Aerospace, 2022 This study investigated a pre-cooled turbojet engine for a Mach 5 class hypersonic transport aircraft. The engine was demonstrated under takeoff and Mach 2 flight conditions, and a Mach 5 propulsion wind tunnel test is planned.
Hideyuki Taguchi +5 more
doaj +1 more source
Model-Based Dynamic Performance Simulation of a Microturbine Using Flight Test Data
Aerospace, 2022 Microturbines can be used not only in models and education but also to propel UAVs. However, their wider adoption is limited by their relatively low efficiency and durability. Validated simulation models are required to monitor their performance, improve
Mario Leonardo Erario +2 more
doaj +1 more source
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
doaj +1 more source