Results 1 to 10 of about 2,694 (174)

Single Neural Adaptive PID Control for Small UAV Micro-Turbojet Engine [PDF]

open access: goldSensors, 2020
The micro-turbojet engine (MTE) is especially suitable for unmanned aerial vehicles (UAVs). Because the rotor speed is proportional to the thrust force, the accurate speed tracking control is indispensable for MTE.
Wei Tang   +3 more
doaj   +9 more sources

Impact of Using Chevrons Nozzle on the Acoustics and Performances of a Micro Turbojet Engine [PDF]

open access: goldApplied 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   +6 more sources

Gear-Shaped High‑g Combustion Chamber for Micro Turbojet Engine Applications [PDF]

open access: goldACS Omega
Enhancing combustion efficiency and optimizing the thrust-to-weight ratio are critical technical challenges encountered in the development, application, and growth of micro turbojet engines. The high-centrifugal (high-g) combustion chamber, as an innovative combustion chamber system, has the capability to replace the primary combustion chamber of the ...
Haozhong Huang   +4 more
doaj   +6 more sources

Micro turbojet engine nozzle ejector impact on the performance and transient regimes analysis

open access: goldCase Studies in Thermal Engineering
This study investigates the influence of an ejector nozzle on the performance and transient behavior of a micro turbojet engine. The problem addressed is the improvement of thrust and fuel efficiency in micro propulsion systems and offering new insights ...
Valentin Silivestru   +4 more
doaj   +5 more sources

Exergoenvironmental, environmental impact and damage cost analyses of a micro turbojet engine (m-TJE)

open access: goldEnergy Reports, 2022
This study presents a comprehensive investigation of the emission impact, environmental damage cost, exergoenvironmental and life cycle assessment (LCA) analyses of a micro turbojet engine (m-TJE) utilized on Unmanned Air Vehicle (UAV) for four different
Ozgur Balli   +3 more
doaj   +4 more sources

Micro Turbojet Engine Nozzle Ejector Impact on the Acoustic Emission, Thrust Force and Fuel Consumption Analysis [PDF]

open access: goldAerospace, 2023
This paper explores the implementation of an ejector to a micro turbojet engine and analysis of the advantages in terms of acoustic and thrust/fuel consumption.
Grigore Cican   +3 more
doaj   +4 more sources

Investigation of thrust vector angle control law based on micro-turbojet engine [PDF]

open access: goldAIP Advances, 2022
The fluid thrust vectoring nozzle has a fixed profile, few moving parts, and lightweight structure, providing effective flight control for high maneuvering aircraft. The nonlinear control law of the jet deflection angle is one of the critical problems of
Shaoqing Chi   +3 more
doaj   +3 more sources

Research on the Application of Integrated Design on Micro Turbojet Engine

open access: greenHangkong 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   +3 more sources

Sliding Mode Control for Micro Turbojet Engine Using Turbofan Power Ratio as Control Law [PDF]

open access: goldEnergies, 2020
The interest in turbojet engines was emerging in the past years due to their simplicity. The purpose of this article is to investigate sliding mode control (SMC) for a micro turbojet engine based on an unconventional compound thermodynamic parameter ...
Khaoula Derbel, Károly Beneda
doaj   +4 more sources

Self-tuning speed and flow control of micro turbojet engines based on an improved evolutionary strategy [PDF]

open access: goldAutomatika
At present, the controllable parameters of micro turbojet engines in engineering applications are mainly speed-fuel flow (hereinafter referred to as flow) control, in which closed-loop proportional–integral–derivative (PID) control is mostly used to ...
Q. Gao, Jiahao Li, Yuxin Zhang
doaj   +4 more sources

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