Managing operations of the aircraft approach process and analyzing runway landing capacity, utilization and related risks require detailed insight into the stochastic characteristics of the process. These characteristics can be represented by probability distributions. The focus of this study is analyzing landings on a runway operating independent of other runways making it as a single runway. ...

Described is a method for determining a semi-empirical, equivalent simple-source model that accounts for the aeroacoustic sources in the jet plumes of high-performance military aircraft. The characteristics of the equivalent source are guided by previously reported observations of jet noise, including an asymmetric, partially correlated source distribution and known far-field peak directivity a...

In this chapter we describe the block backstepping approach to flight control law design. Block backstepping is a Lyapunov based technique for controller design which is particularly well suited to the rigid body control problem where the main means of control is through the moments, which is the case in most aircraft. The resulting controller has semi-global (in the state space) stabilising pr...

A novel low-cost flight simulator with the development goals cost effectiveness and high performance has been realized for meeting the huge pilot training needs of airlines. The simulator consists of an aircraft dynamics model, a sophisticated designed low-profile electrical driven motion system with a subsided cabin, a mixed reality based semi-virtual cockpit system, a control loading system a...

For the semi-physical simulation test process of coordinates aircraft landing points, concept a completeness for point data is proposed, and criterion based on field expert estimation information established. An integrity detection method data, including dimensionality reduction, expansion, regularization, drawing envelope confidence region establishing steps, proposed. points that do not satis...

A framework that employs the Volatility Basis Set (VBS) within the Community Multiscale Air Quality Model (CMAQ) was applied to predict organic aerosol concentrations from aircraft emissions. This framework was further expanded to include the formation of secondary organic aerosols from semi and intermediate volatile organic compounds which are traditionally missing from emission inventories us...

Purpose The purpose of this paper is to present the result calculations that were performed estimate structural weight passenger aircraft using novel technological solution. Mass penalty resulting from installation fuselage boundary layer ingestion device was needed in CENTRELINE project be able real benefits applied technology. Design/methodology/approach This focusses on finite element analys...

Vegetation cover change is one of the key indicators used for monitoring environmental quality. It can accurately reflect changes in hydrology, climate, and human activities, especially arid semi-arid regions. The main goal this paper to review remote sensing satellite sensors methods mapping vegetation semi-arid. Arid lands are eco-sensitive environments with limited water resources cover. Mon...

Semi-solid forming processes are now used for producing near net shape parts especially in the automotive and aircraft industries. Non Newtonian rheology of semisolid alloys and its dependence on the various parameters such as reheating cycle, method used to produce non-dendritic structure, thermo-shear history etc. have made the simulation of the flow behavior of semisolid material a difficult...

this paper presented methods to determine the aerodynamic forces that acton an aircraft wing during flight. these methods are initially proposed for asimplified two degree-of-freedoms airfoil model and then are extensivelyapplied for a multi-degree-of-freedom airfoil system. different airspeedconditions are considered in establishing such methods. the accuracy of thepresented methods is verifie...