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NARX Neural Networks Based Time Series Prediction for Amount of Airworthiness Time
(IEEE, 2016)
Aviation, a serious sector, is required to recourse planning intensively. There is a need for foresight in order to eliminate the planless that can lead to high costs and prevent accidents that could cause to fatal ...
Performance figures of merit for turbojet/fan transport aircraft performance comparison and conceptual design
(2003)
A set of aircraft performance figures of merit for different phases of flight mission is derived from aircraft performance equations. In addition, an overall performance figure of merit combining the derived performance ...
Microstructural observation of overload effect on the fatigue crack growth of 2024-T3 Al-alloy
(IOP Publishing LTD, 2004)
Microstructural investigation of fracture surfaces after fatigue crack growth experiments on 2024-T3 centrally cracked specimens was carried out. Variable amplitude loadings were used with periodic overload cycles added ...
Parallel solution of low aspect ratio rectangular flat wings in compressible flow
(2005)
Two block parallel Navier Stokes solutions of an aspect ratio 1.0 flat plate with sharp edges are obtained at different Mach numbers and angles of attack. Reynolds numbers are of the order of 200,000-300,000. The flow field ...
Aircraft engine sensor fault detection, isolaton and reconfiguration using fuzzy logic control based unknown input observer
(Lappeenranta University of Technology, 2014)
In this paper, a model-based robust fault diagnosis approach 'Unknown Input Observer (UIO)', 'Generalized Observer Scheme (GOS)' and 'a Fuzzy Logic Control Mechanism' will be studied respectively for fault detection, ...
Modelling and pid controller design for a quadrotor
(EUROSIS, 2016)
This paper presents the modelling of a four rotor vertical take-off and landing unmanned air vehicle known as the quadrotor aircraft, Vertical take off and landing, high maneuverability capabilities and indoor/outdoor ...
The role of cyclic mechanical loading and thermal gradients in damage behavior of thermal barrier coating systems
(2005)
Ceramic thermal barrier coatings (TBC) can exhibit premature in-service failure due to spallation as a consequence of exposure to elevated temperatures, aggressive environments, and cyclic thermal and mechanical loading. ...
Pitch rate damping of an aircraft by a fuzzy PD controller
(2010)
Aircraft dynamics are in general nonlinear, time varying, and uncertain. A control system (classical control systems) designed for a flight condition, may not provide the desired stability and performance characteristics ...
The modeling and simulation of a quadrocopter
(EUROSIS, 2016)
Mini-flying vehicles with four rotors which are called quadcopters have attracted many researchers in recent years. Quadrotor is the one of the most popular rotary wing aircraft in control problems. Vertical take off and ...
Scanning electron microscopy observations of fatigue crack growth retardation due to block overloads
(IOP Publishing LTD, 2001)
Fatigue crack propagation behaviour of 2024-T3 aluminium (Al) alloy under periodic overloads superimposed on constant amplitude loadings with R=0.5 and f=10 Hz was investigated by scanning electron microscopy (SEM). During ...