Results 271 to 280 of about 3,578,244 (328)
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Flexible aircraft fleeting and routing at TunisAir
Journal of the Operational Research Society, 2011This paper addresses a Flexible Aircraft Fleeting and Routing Problem, which is motivated by the Tunisian national carrier TunisAir. A solution to this problem specifies the departure time of each flight, the subset of aircraft to be chartered or rented out, the individual aircraft assigned to each flight, as well as the sequence of flights to be flown
Farah Zeghal Mansour +3 more
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Multi-Objective Flight Control for Ride Quality Improvement for Flexible Aircraft
AIAA Scitech 2020 Forum, 2020This paper describes a multi-objective flight control system design for ride quality improvement for flexible aircraft using multi-functional distributed flight control surfaces.
N. Nguyen, Kelley E. Hashemi
semanticscholar +1 more source
Gust effects on a flexible aircraft
The Aeronautical Journal, 1991Aircraft response to atmospheric turbulence is a basic problem in aeronautical design. Several uncertainties still exist about the most adequate mathematical model for it. A recent investigation conducted by AGARD revealed that different users follow very different criteria.The reasons for this diversity in analysis methods is only partially due to the
P. SANTINI, GASBARRI, Paolo
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, 2020
The unsteady vortex-lattice method provides a medium-fidelity tool for calculation of low-speed aerodynamic loads based on the potential-flow theory. It has long been favored in research on the aeroelasticity and flight dynamics for flexible aircraft ...
Xiao-Chen Hang +3 more
semanticscholar +1 more source
The unsteady vortex-lattice method provides a medium-fidelity tool for calculation of low-speed aerodynamic loads based on the potential-flow theory. It has long been favored in research on the aeroelasticity and flight dynamics for flexible aircraft ...
Xiao-Chen Hang +3 more
semanticscholar +1 more source
Motion Simulation of Flexible Aircraft
AIAA Modeling and Simulation Technologies Conference and Exhibit, 2007This study investigates new methods for improving the motion simulation of flexible aircraft. In part icular, the work concentrates on improving the accuracy of flexible aircraft motion simulation by splitting motion signals into their oscillating and non -oscillating components. The non -oscillating component of the motion signals is processed through
Jay Loftus, Peter Grant
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Multibody Simulation of Flexible Aircraft With Variable Sweep Wingtips
AIAA SCITECH 2025 ForumAn investigation into variable-sweep wingtips for use on flexible aircraft is presented. A suitable flexible multibody formulation is first developed, which also includes prescribed rotation kinematics between flexible beam elements.
Ben Preston +3 more
semanticscholar +1 more source
On the stability of flexible aircraft
Aerospace Science and Technology, 2008The problem of aircraft stability has been a subject of concern since the beginnings of flight. Traditionally, aircraft stability has been treated within the confines of two separate disciplines, namely, flight dynamics and aeroelasticity. Based on some recent developments in the dynamics and control of flexible aircraft, this investigation uses the ...
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Advances in Materials
Modern high‐speed aircraft require materials that can absorb electromagnetic waves (EMWs) while remaining lightweight, flexible, and resistant to extreme heat flux. Although graphene@silica fabric (G@SF) is a promising metasurface in this regard, its EMW
Guang Cui +7 more
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Modern high‐speed aircraft require materials that can absorb electromagnetic waves (EMWs) while remaining lightweight, flexible, and resistant to extreme heat flux. Although graphene@silica fabric (G@SF) is a promising metasurface in this regard, its EMW
Guang Cui +7 more
semanticscholar +1 more source
Ground Vibration Testing on Very Flexible Aircraft
AIAA Scitech 2020 Forum, 2020As aircraft become more flexible in an effort to improve efficiency to reduce fuel consumption and operating costs and improve endurance, structural nonlinearities become more apparent. As a consequence, testing practices that are well established and mature for traditional, relatively rigid aircraft need to be re-examined.
Bilal Sharqi, Carlos E. S. Cesnik
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Rapid Worst-Case Gust Identification for Very Flexible Aircraft Using Reduced-Order Models
arXiv.orgIdentification of worst-case gust loads is a critical step in the certification of very flexible aircraft, yet the computational cost of nonlinear full-order simulations renders exhaustive parametric searches impractical.
N. Tantaroudas +3 more
semanticscholar +1 more source