Results 1 to 10 of about 2,567 (166)

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

open access: yesSensors, 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   +10 more sources

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

open access: yesACS 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   +4 more sources

Experimental Investigation of Particulate Number Measurement Methodology for Micro-Turbojet Engine Emissions

open access: yesAerospace
Increasing aviation activities have heightened concerns about particulate emissions from aircraft engines. Current ICAO standards mainly focus on large civil turbofan engines, leaving a gap in the research on PN emissions from small aircraft engines ...
Zheng Xu   +8 more
doaj   +4 more sources

Research on the Application of Integrated Design on Micro Turbojet Engine

open access: yesHangkong 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   +2 more sources

Eddy Current Sensor System for Blade Tip Clearance Measurement Based on a Speed Adjustment Model [PDF]

open access: yesSensors, 2019
Blade tip clearance (BTC) measurement and active clearance control (ACC) are becoming crucial technologies in aero-engine health monitoring so as to improve the efficiency and reliability as well as to ensure timely maintenance. Eddy current sensor (ECS)
Jiang Wu   +6 more
doaj   +2 more sources

Optimum Design of Injection Ring for Micro-turbojet Engine

open access: yesHangkong gongcheng jinzhan, 2018
The fuel injection ring is an important part of the micro-turbojet engine. The uniformity of fuel injection quantity determines the uniformity of the temperature field in the combustion chamber.
Tan Kun   +4 more
doaj   +2 more sources

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

open access: yesAIP 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   +2 more sources

A denoising method for aeroengine gas path electrostatic signal of low signal-to-noise ratio based on IMFs optimized reconstruction and wavelet threshold [PDF]

open access: yesScientific Reports
Electrostatic monitoring technology for aero-engines has demonstrated considerable capability in early fault warning. However, raw electrostatic signals often contain significant noise and exhibit low signal-to-noise ratios, making denoising essential to
Chaoying Yan, Yan Liu, Feng Lu
doaj   +2 more sources

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

open access: yesCase 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   +2 more sources

Intensification of convective heat exchange of walls of heat pipe of 3D-printed micro-sized turbojet engine [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022
The article considers the solution of the urgent problem of creating a micro-sized turbojet engine using 3D printing. The article describes one of the ways to cool the walls of the heat pipe of a small combustion chamber made of heat-resistant material
A. V. Pobelyansky   +2 more
doaj   +1 more source

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