calculation of aircraft aerodynamic loads during operational flight

Flight Loads Analysis of a Maneuvering Transport Aircraft

Distributed Measurement of Aerodynamic Loads

A method for accurately measuring the drag associated with a protuberance on an aircraft has been devised and implemented in a wind tunnel using a C-130 model. The C-130 aircraft has been heavily modified for various different configurations and the impact that these modifications have had on the aerodynamic performance of the aircraft has not been well documented. This paper describes a method...

Structural and Aerodynamic Models in the Nonlinear Flight Dynamics of Very Flexible Aircraft

An evaluation of aerodynamic and structural models is carried out for their application to flight dynamics of low-speed aircraft with very-flexible high-aspect-ratio wings. The structural dynamic approaches include displacement-based, strain-based, and intrinsic (first-order) geometrically-nonlinear composite beam models, while thin-strip and vortexlattice methods are considered for the unstead...

Adaptive Quaternion Attitude Control of Aerodynamic Flight Control Vehicles

Conventional quaternion based methods have been extensively employed for spacecraft attitude control where the aerodynamic forces can be neglected. In the presence of aerodynamic forces, the flight attitude control is more complicated due to aerodynamic moments and inertia uncertainties. In this paper, a robust nero-adaptive quat...

Structural and Aerodynamic Models in Nonlinear Flight Dynamics of Very Flexible Aircraft

An evaluation of computational models is carried out for flight dynamics simulations on low-speed aircraft with very-flexible high-aspect ratio wings. Structural dynamic models include displacement-based, strain-based, and intrinsic (first-order) geometrically-nonlinear composite beams, while thin-strip and vortex lattice methods are considered for the unsteady aerodynamics. It is first shown t...

Aerodynamic Characterization of an Off-the-Shelf Aircraft via Flight Test and Numerical Simulation

Characterization of an off-the-shelf small tailless aircraft with a wing span of 1.3m is presented. Mentioned aircraft is being used in several scientific measurement projects by authors, whereas the flight performance and quality such as endurance, and stability plays an important role on the measurement quality. Hence the main objective is to use the extracted and fine tuned aerodynamic and f...