Results 11 to 20 of about 165,973 (305)
Trajectory Control for Very Flexible Aircraft [PDF]
This paper focuses on trajectory control of the 6-DOF body flxed reference frame located on a very ∞exible aircraft. The 6-DOF equations of motion of a reference point on the aircraft are coupled with the aeroelastic equations that govern the geometrically nonlinear structural response of the vehicle.
Shearer, Christopher +1 more
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Simulated pilot-in-the-loop testing of handling qualities of the flexible wing aircraft
This article aims to indicate the differences between rigid and flexible wing aircraft flying (FQ) and handling (HQ) qualities. The Simulation Framework for Flexible Aircraft was used to provide a generic cockpit environment and a piloted mathematical ...
Vilius Portapas, Alastair Cooke
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European airspace is marked by fragmentation, and from fragmentation originated congestion. As an answer to congestion, flexible use of airspace is created to fulfil all users’ requirements optimally, and at its very core lies civil-military cooperation ...
Nikola Mostarac +3 more
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A Substructure Synthesis Method with Nonlinear ROM Including Geometric Nonlinearities
Large flexible aircraft are often accompanied by large deformations during flight leading to obvious geometric nonlinearities in response. Geometric nonlinear dynamic response simulations based on full-order models often carry unbearable computing burden.
Chao An +3 more
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Force controlled assembly of flexible aircraft structure [PDF]
The use of industrial robots in the aircraft industry has been hampered by a combination of poor accuracy of the robots and poor calibration of the workcell, and also manufacturing variability in composite parts. A way to handle these difficulties is using force control. An experimental case where a semi-compliant rib is aligned to multiple surfaces is
Stolt, Andreas +4 more
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Singular perturbation decomposition-based ride quality control of elastic aircraft
Considering the reduction of ride comfort under wind disturbance, the ride quality control method based on singular perturbation decomposition is proposed.
LI Zhaoxing +4 more
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The flight control effects and flight quality of the aircraft are influenced by the flap actuation system directly. The main motivation of this research is to develop a rigid-flexible model of the flap actuation system with clearance and to explore the ...
Qi Wan +4 more
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Adaptive output feedback control of aircraft flexible modes [PDF]
The application of adaptive output feedback augmentative control to the flexible aircraft problem is presented. Experimental validation of control scheme was carried out using a three disk torsional pendulum.
Bordeneuve-Guibé, Joël +1 more
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A method for flexible aircraft LFT modelling [PDF]
This paper presents a method to obtain a Linear Fractional Transformation (LFT) model from a set of numerical flexible aircraft models. The core of the method lies in a polynomial interpolation, but before this step, some cautious treatments must be applied to the numerical models for them to be interpolable.
Torralba, J. +3 more
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Investigation of the Effect of a Flapping Propeller on Its Aerodynamic Performance
This paper focuses on the dynamic effects of flexible propellers on F2 class aircraft models. An oscillating propeller affects an engine’s mechanical performance, and this combination has a huge influence on the model’s flight dynamic performance. In the
Vytautas Rimša, Artūras Kilikevičius
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