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Laguarda, L. (author)
doctoral thesis 2024
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Filippou, E. (author), Kilimtzidis, Spyridon (author), Kotzakolios, Athanasios (author), Kostopoulos, Vassilis (author)
The pursuit of more efficient transport has led engineers to develop a wide variety of aircraft configurations with the aim of reducing fuel consumption and emissions. However, these innovative designs introduce significant aeroelastic couplings that can potentially lead to structural failure. Consequently, aeroelastic analysis and...
journal article 2024
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Schildkamp, R.R.M. (author), Wang, Xuerui (author), Chang, J. (author), De Breuker, R. (author), Sodja, J. (author)
This paper presents the development and initial characterization of an active, para- metric wing section with aileron and spoiler control surfaces. This wing section is intended to replace the currently used passive wing section setup and facilitate research in active con- trol techniques of aeroelastic phenomena such as flutter, gust load...
conference paper 2022
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Mitrotta, F.M.A. (author), Sodja, J. (author), Sciacchitano, A. (author)
This study describes a novel measurement approach for combined flow and structural measurements in wind tunnels using robotic volumetric particle tracking velocimetry (PTV). The measurement approach is based on the application of a particle tracking algorithm on images including flow or structure tracers, where the latter are implemented by...
journal article 2022
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van den Bos, L.M.M. (author), Bierbooms, W.A.A.M. (author), Alexandre, Armando (author), Sanderse, Benjamin (author), van Bussel, G.J.W. (author)
A novel approach is proposed to reduce, compared with the conventional binning approach, the large number of aeroelastic code evaluations that are necessary to obtain equivalent loads acting on wind turbines. These loads describe the effect of long-term environmental variability on the fatigue loads of a horizontal-axis wind turbine. In...
journal article 2020
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Sarma, R. (author), Dwight, R.P. (author), Viré, A.C. (author)
Downwind wind turbine blades are subjected to tower wake forcing at every rotation, which can lead to structural fatigue. Accurate characterisation of the unsteady aeroelastic forces in the blade design phase requires detailed representation of the aerodynamics, leading to computationally expensive simulation codes, which lead to intractable...
journal article 2020
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Lancelot, P.M.G.J. (author), De Breuker, R. (author)
In this paper, a methodology is presented to size an aircraft wing-box accounting for steady and dynamic loads combined with active control. Several aerodynamic corrections are used and benchmarked to ensure a consistent level of fidelity during the load analysis. Reduced order models (ROM) of the aircraft movables, gust loads and maneuvers...
conference paper 2019
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Lancelot, P.M.G.J. (author), De Breuker, R. (author)
The proposed approach in this paper aims to bring the accuracy of CFD to quick linear aeroelastic simulations for structural sizing. This is achieved by deriving reduced-order models (ROM) of the aircraft movables, gust loads and manoeuvres loads from rigid CFD analysis and to use these as substitutes for the loads in the aeroelastic simulation....
conference paper 2018
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Bernhammer, L.O. (author)
Wind turbines convert kinetic energy of the wind into electrical energy. Unfortunately, this process is everything but constant, as the wind source shows large fluctuations with high and low frequencies. This turbulence, together with the wind shear and yawed inflow, excites the turbine structure, thereby driving the loads and the design of...
doctoral thesis 2015
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Werter, N.P.M. (author), Sodja, J. (author), De Breuker, R. (author)
The design methodology and testing of an aeroelastically tailored wing subjected to manoeuvre loads is presented in this paper. The wing is designed using an aeroelastic analysis tool that is composed of a closely coupled nonlinear beam model and a vortex lattice aerodynamic model. The globally convergent method of moving asymptotes is used to...
conference paper 2015
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Werter, N.P.M. (author), De Breuker, R. (author)
Driven by a need to improve the efficiency of aircraft and reduce the fuel consumption, composite materials are applied extensively in the design of aircraft. A dynamic aeroelastic framework for the conceptual design of a generic composite wing structure is presented. The wing is discretized in several spanwise sections, where each section has a...
conference paper 2015
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Thuwis, G.A.A. (author)
doctoral thesis 2012
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Barlas, A. (author)
This thesis investigates particular concepts and technologies that can alleviate fatigue loads on wind turbines by using distributed active aerodynamic devices on the blades, a concept briefly referred to as `smart blades'. Firstly, published research work on smart control devices is reviewed, and the pros and cons for the application on wind...
doctoral thesis 2011
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De Breuker, R. (author)
Morphing aircraft can change their shape radically when confronted with a variety of conflicting flight conditions throughout their mission. For instance the F-14 Tomcat fighter aircraft, known from the movie Top Gun, was able to sweep its wings from a straight wing configuration to a highly swept version. Such concepts, which are basically...
doctoral thesis 2011
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Witteveen, J.A.S. (author), Bijl, H. (author)
An efficient uncertainty quantification method for unsteady problems is presented in order to achieve a constant accuracy in time for a constant number of samples. The approach is applied to the aeroelastic problems of a transonic airfoil flutter system and the AGARD 445.6 wing benchmark with uncertainties in the flow and the structure.
conference paper 2009
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Holierhoek, J.G. (author)
doctoral thesis 2008
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Reijerkerk, M.J. (author)
Numerical computational methods are getting more and more sophisticated every day, enabling more accurate aircraft load predictions. In the structural design of aircraft higher levels of flexibility can be tolerated to arrive at a substantial weight reduction. The result is that aircraft of the future can be bigger, have better performance and...
doctoral thesis 2008
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Looye, G.H.N. (author)
The design of flight control laws (FCLs) for automatic and manual (augmented) control of aircraft is a complicated task. FCLs have to fulfil large amounts of performance criteria and must work reliably in all flight conditions, for all aircraft configurations, and in adverse weather conditions. Consequently, a large part of the FCL design...
doctoral thesis 2008
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Lisandrin, P. (author)
doctoral thesis 2007
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Lumbantobing, H. (author)
report 2003
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