This paper presents an optimization model for an aircraft taxi-scheduling problem that arises on the surface of airports. Though formulations are already available for this problem in the literature, they either ignore aircraft type or do not include all the safety constraints that are required to keep any two aircraft separated by a minimum distance at any time instant. The proposed model impr...

Because commercial aircraft are built with thin-walled structures, their structural performance is well-modeled using shell-element meshes. However, creating these meshes for the full aircraft configuration can be challenging and presents a bottleneck in the design process, especially in a configuration-level design space. This paper presents an algorithm that automatically creates unstructured...

The requirement to operate aircraft in GPS-denied environments can be met by using visual odometry. Aiming at a full-scale aircraft equipped with a high-accuracy inertial navigation system (INS), the proposed method combines vision and the INS for odometry estimation. With such an INS, the aircraft orientation is accurate with low drift, but it contains high-frequency noise that can affect the ...

I study transactions between aircraft manufacturers and airlines as well as airlines’ utilization of their fleet. Aircraft production is characterized by economies of scale via learningby-doing, which creates a trade-off between current profit and future competitive advantage in the aircraft market. The latter consideration makes large buyers more attractive than small buyers and induces quanti...

This paper addresses the reliability modeling of an aircraft considering the aircraft operational state and its missions. It presents an assessment approach that one can use for the initial assignment of aircraft missions and possible adjustment and adaptation in case of unpredicted events during the mission. The developed model captures the current operational states of the aircraft with regar...

Demonstrating the reliability of flight control algorithms is critical to integrating unmanned aircraft systems into the civilian airspace. For many potential applications, design and certification of these algorithms will rely heavily on mathematical models of the aircraft dynamics. Therefore, the aerospace community must develop flight test platforms to support the advancement of model-based ...

Knowledge of aircraft InfraRed Signature (IRS) is indispensable for assessing their detection probability, and thus their survivability in an hostile environment. By signature, we mean all the quantities for predicting the signal that would be observed by an optronic sensor when the aircraft is in its surroundings. For many reasons, the experimental approach is generally not feasible to evaluat...

We evaluate black carbon (BC) model predictions from the AeroCom model intercomparison project by considering the diversity among year 2000 model simulations and comparing model predictions with available measurements. These model-measurement intercomparisons include BC surface and aircraft concentrations, aerosol absorption optical depth (AAOD) retrievals from AERONET and Ozone Monitoring Inst...

Abstract The objective of green, carbon-neutral flights is propelling the innovation newer propulsion systems. With this increased development an interdisciplinary form for aircraft, integration burdens and efforts intensify. In literature, it estimated that takes 10-15 years to design develop aircraft. expected date entry any hybrid electric aircraft 2035-2040. Any effort cut time by degree sh...

Inverse problems can be applied to aircraft in many areas. One of the disciplines within the aerospace industry with the most openly published data is in the area of aircraft performance. Many aircraft manufacturers publish performance claims, flight manuals and Standard Aircraft Characteristic (SAC) charts without any mention of the more fundamental technical information such as CD0 . With acc...