Results 91 to 100 of about 4,409 (234)

TECHNOLOGIES FOR JET NOISE REDUCTION IN TURBOFAN ENGINES

Aviation, 2012
Turbofan engines are commonly used for commercial transport due to their advantages of higher performance and lower noise. Jet noise is one of the principal noise sources of turbofan aeroplane engines and remains an acute environmental problem that requires advanced solutions.
Gorji-Bandpy, Mofid, Azimi, Mohammadreza
openaire   +2 more sources

Acoustic optimisation and prediction of sound propagation in turbofan engine ducts

, 2010
The research presented in this thesis explores the prediction of noise propagation andradiation in turbofan engine intakes and bypass ducts, and the optimisation of noise attenuationby using acoustic liners.
Achunche, Iansteel Mukum
core  

An experimental and numerical investigation of the effect of aero gas turbine test facility aspect ratio on thrust measurement. [PDF]

, 2011
This work describes the outcome of research program investigating thrust measurements in enclosed test facility for modern aero gas turbine engines. Literature work, experimental work and a description of Computational fluid dynamics simulation system
Al-Alshaikh, Abdullatif
core  

Vibration analysis of compressor blade tip-rubbing [PDF]

, 2011
There has been a significant increase in air traffic volume, particularly over the past twenty years. In order to cope with this increase in demand, it has been necessary to increase the efficiency of aircraft engines.
Arzina, Dina
core  

Neural network model for fast prediction of infrared radiation of turbofan engine with axisymmetric exhaust system in preliminary design phase

Case Studies in Thermal Engineering
It is widely agreed that the infrared stealth should be considered in the preliminary design phase of turbofan engine so as to decrease the infrared radiation of engine exhaust system.
Feng Wang, Honghu Ji, Haoying Chen, Xinlei Chen, Mingxin Wang, Xiaojuan Shi   +5 more
doaj   +1 more source

Análise numérica do campo acústico associado a entrada de motores turbofan para diferentes configurações de tratamento acústico [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2015.Nas últimas décadas, o incremento do número de voos comerciais tem gerado um aumento nos níveis de ...
Acosta, Oscar Esneider
core  

Turbofan Engine Health Assessment Based on Spatial-Temporal Similarity Calculation. [PDF]

Sensors (Basel), 2023
Peng C, Hu X, Tang Z.
europepmc   +1 more source

Thermodynamic, thermoeconomic and environmental performance analyses of a high bypass turbofan engine used on commercial aircrafts

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
Exergetic, exergoeconomic and exergoenvironmentalanalyses of a high bypass turbofan engine used on commercial aircraft areperformed to determine the magnitudes of the irreversibilities within a the system, exergy costformation rates of product and waste ...
Özgür Balli
doaj   +1 more source

Gas-path Diagnostics and Prognostics for Aero-engines Using Fuzzy Logic and Time Series Analysis [PDF]

, 2004
Reducing the direct operating-costs is now crucial in order to ensure competitive advantages for airlines and manufacturers, and so effective advanced engine-condition monitoring methodologies are necessary.
Marinai, Luca
core  

Study on Overall Parameter and Performance Analysis of Different Configurations for Civil Turbofan Engine

Hangkong gongcheng jinzhan, 2018
In order to improve the competitiveness, optimizing the fuel economy and competitiveness of civil turbofan engines is becoming the research highlights recently.
Xue Bingjing, Li Hualei, Tan Zhiyong
doaj   +1 more source