Results 31 to 40 of about 4,409 (234)

MODELING OF THRUST AND SPECIFIC FUEL CONSUMPTION FOR A TURBOFAN ENGINE VIA GMDH-TYPE NEURAL NETWORKS [PDF]

open access: yesمجله مدل سازی در مهندسی, 2012
In this paper, Group Method of Data Handling (GMDH)-type neural networks based on Genetic Algorithm, as an effective means to model the complex and nonlinear system, used for the modeling of turbofan engine.
مسیح Sharifi   +2 more
doaj   +1 more source

Improved Thrust Performance Optimization Method for UAVs Based on the Adaptive Margin Control Approach

open access: yesMathematics, 2023
This study proposes a strategy for improving the thrust performance of fixed-wing UAV turbine engines from the perspective of aircraft/engine integration.
Yeguang Wang, Honglin Liu, Kai Liu
doaj   +1 more source

Research on analysis method of propulsive efficiency of prop-fan engine

open access: yesHangkong gongcheng jinzhan
It is of great significant for prop-fan engine under medium to high Mach number to evaluate the propulsive efficiency of turbofan, turboprop and prop-fan engines.
HUANG Xing   +3 more
doaj   +1 more source

Analysis of the influence of the place of water injection on the performance of turbofan engine with afterburner

open access: yesАвіаційно-космічна техніка та технологія, 2023
An important direction for the development of high-speed aircraft is the expansion of the range of operation of aircraft engines as part of their power plants. Currently, the range of operation of aircraft engines in terms of altitude and flight speed is
Yurii Ulitenko   +2 more
doaj   +1 more source

POLYNOMIAL LPV SYNTHESIS APPLIED TO TURBOFAN ENGINES [PDF]

open access: yesIFAC Proceedings Volumes, 2007
Abstract Results on polynomial fixed-order controller design are extended to SISO gain-scheduling with guaranteed stability and H ∞ performance over the whole scheduling parameter range. Salient features of the approach are: (a) the use of polynomials as modeling objects; (b) the use of flexible linear matrix inequalities (LMI ...
Wilfried Gilbert   +3 more
openaire   +1 more source

Residue Cost Formation of a High Bypass Turbofan Engine

open access: yesApplied Sciences, 2020
The kinetic energy produced by a turbofan engine is inseparable from the unavoidable generation of waste heat dissipated into the environment and the chemical exergy of exhaust gases. However, exergoeconomic cost analyses of these propulsion systems have
Lugo-Méndez Helen   +5 more
doaj   +1 more source

Advanced Control Algorithm for FADEC Systems in the Next Generation of Turbofan Engines to Minimize Emission Levels

open access: yesMathematics, 2022
New propulsion systems in aircrafts must meet strict regulations and emission limitations. The Flightpath 2050 goals set by the Advisory Council for Aviation Research and Innovation in Europe (ACARE) include reductions of 75%, 90%, and 65% in CO2, NOx ...
Majid Aghasharifian Esfahani   +3 more
doaj   +1 more source

Operating Characteristics of an Electrically Assisted Turbofan Engine

open access: yesVolume 1: Aircraft Engine; Fans and Blowers, 2020
Abstract With the growing pressure to reduce the environmental footprint of aviation, new and efficient propulsion systems must be investigated. The current research looks at the operating characteristics of a turbofan engine in a parallel hybrid-electric propulsion system.
van Holsteijn, M.R. (author)   +2 more
openaire   +3 more sources

Parametric Study of a Turbofan Engine with an Auxiliary High-Pressure Bypass

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2019
A parametric study of a novel turbofan engine with an auxiliary high-pressure bypass (AHPB) is presented. The underlying motivation for the study was to introduce and explore a configuration of a turbofan engine which could facilitate clean secondary ...
Sharanabasaweshwara A. Asundi   +1 more
doaj   +1 more source

How emerging market firms learn to lead in complex product systems: Evidence from China's civil aircraft industry

open access: yesGlobal Strategy Journal, EarlyView.
Abstract Research Summary The rise of emerging market lead firms (LFs) in global value chains (GVCs) challenges the prevailing view that only multinational corporations (MNCs) from advanced economies lead systems integration, design, and innovation activities.
Yuanyuan Wu, Paola Perez‐Aleman
wiley   +1 more source

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