Ground Vibration Tests on modern aircraft structures play a key role for the aeroelastic certification of new airplanes. The dynamic model of an aircraft is essential for flutter predictions and/or for analytical structural model updating and validation. This paper describes a technique aimed to the reliability and accuracy improvement of the numerical modal analysis by means of an experimental...

A key challenge to integrating unmanned aerial systems (UASs) into the National Airspace is providing a means for UASs to sense and avoid (SAA) other aircraft. Additionally, successful applications of a SAA system will depend on the degree to which the operator understands the rationale for its maneuvers/decision aids and can interact with the system to tailor and/or override the automation. Th...

Air traffic growth and especially hubs development cause new significant congestion and ground delays on major airports. Accurate models of airport traffic prediction can provide new tools to assist ground controllers in choosing the best taxiways and the most adapted holding points for aircraft. Such tools could also be used by airport designers to evaluate possible improvements on airport con...

As the demand for air transportation continues to grow, some flights cannot land at their preferred landing times because the airport is near its runway capacity. Therefore, devising a method for tackling the Aircraft Landing Problem (ALP) in order to optimize the usage of existing runways at airports is the focus of this study. This study, a hybrid Genetic-Cuckoo Search (GCS) algorithm for opt...

The aileron is one of the most important tools for adjusting roll attitude aircraft, but surface flow state likely to be affected by high-lift devices. In this paper, using computational fluid dynamics (CFD) simulations and wind tunnel tests, Krueger flap effects on ailerons in a typical blended wing body civil aircraft were investigated. order increase lift, deflecting makes separation occur B...

Airspace encounter models, covering close encounter situations that may occur after standard separation assurance has been lost, are a critical component in the safety assessment of aviation procedures and collision avoidance systems. Of particular relevance to Unmanned Aircraft Systems is the potential for encountering general aviation aircraft that are flying under Visual Flight Rules (VFR) a...

The continuing growth of air traffic worldwide motivates the need for new approaches to air traffic management that are more flexible both in terms of traffic volume and weather. Free Flight is one such approach seriously considered by the aviation community. However the benefits of Free Flight are severely curtailed in the convective weather season when weather is highly active, leading aircra...