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Mkhoyan, T. (author), de Visser, C.C. (author), De Breuker, R. (author)Advancements in intelligent aircraft controller design, paired with increasingly flexible and efficient aircraft concepts, create the need for the development of novel (smart) adaptive sensing suitable for aeroelastic state estimation. In contrast to rigid states, aeroelastic state estimation requires more measurement points (displacements...conference paper 2020
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Mitrotta, F.M.A. (author), Rajpal, D. (author), Sodja, J. (author), De Breuker, R. (author)Aeroelastic tailoring offers an effective way to exploit the anisotropic properties of the composite materials used in lightweight aerospace structures. This paper presents a design methodology for experimental wings that employ a typical wingbox structure. The proposed methodology combines three different analysis tools: Proteus, a low-fidelity...conference paper 2020
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Roessler, Christian (author), Teubl, Daniel (author), Meddaikar, Yasser (author), Wüstenhagen, Matthias (author), Ossmann, Daniel (author), Sodja, J. (author), De Breuker, R. (author), Luspay, Tamás (author), Gyulai, László (author)The idea of the EU funded FLEXOP project is to raise efficiency of a currently existing wing by derivative solution with higher aspect ratio at no excess structural weight. In order to enable such a resulting highly flexible wing the project goal is to develop methods for active suppression of flutter and passive load alleviation. The developed...conference paper 2020
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Sodja, J. (author), De Breuker, R. (author), Meddaikar, Yasser (author), Roessler, Christian (author), Teubl, Daniel (author), Gyulai, László (author), Toth, Szabolcs (author), Nagy, Mihaly (author), Vanek, Balin (author)Ground testing campaign conducted on the FLEXOP demonstrator aircraft is presented in this paper. The conducted tests are grouped in structural, flight system and integration tests. Along with the description of the test setup and test execution, the main findings and conclusions are also given. The structural tests comprise the static, ground...conference paper 2020
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Natella, M. (author), De Breuker, R. (author)This paper discusses the effects of the aerodynamic model on the design of a composite wing via aeroelastic tailoring. The classic framework for analysis and optimization of composite wings developed at Delft University of Technology adopts panel method aerodynamics to calculate static and dynamic loads. The current work expands the...journal article 2019
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Krüger, W. R. (author), Dillinger, J.K.S. (author), De Breuker, R. (author), Haydn, K. (author)Wings of modern aircraft have to be designed to give optimal response with respect to loads, comfort and performance. An essential part of the wing development is thus a design process which can take all these aspects into consideration. In the “Adaptive Wing” work package of the CleanSky “Smart Fixed Wing Aircraft” project, a multi-fidelity...journal article 2019
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Rajpal, D. (author), Kassapoglou, C. (author), De Breuker, R. (author)An analytical model to predict the fatigue life of a composite laminate is formulated. The model calculates stresses in each ply using classical lamination theory, degrades the residual strength using the linear wear-out law and predicts failure based on Tsai Wu failure theory. The cycles to failure are predicted using the updated cycle-by...journal article 2019
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Sodja, J. (author), Martinez, M.J. (author), Simpson, John C. (author), De Breuker, R. (author)This article presents an experimental evaluation of a morphing leading edge demonstrator by investigating its morphed shape, the level of induced strains in the airfoil skin, the actuation force, and the morphing mechanism’s capability to lock and transfer the applied loads. In addition, a finite element model of the demonstrator is assembled...journal article 2019
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Wang, Xuerui (author), van Kampen, E. (author), Chu, Q. P. (author), De Breuker, R. (author)This paper designs an incremental nonlinear dynamic inversion control law for free-flying flexible aircraft, which can regulate rigid-body motions, alleviate gust loads, reduce the wing root bending moment, and suppress elastic modes. By fully exploring the sensor measurements, the model dependency of the proposed control law can be reduced...journal article 2019
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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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Rajpal, D. (author), Gillebaart, E. (author), De Breuker, R. (author)Including a gust analysis in an optimization framework is computationally expensive as the critical load cases are not known a priori and hence a large number of points within the flight envelope have to be analyzed. Model order reduction techniques can provide significant improvement in computational efficiency of an aeroelastic analysis. In...journal article 2019
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Mitrotta, F.M.A. (author), Sciacchitano, A. (author), Sodja, J. (author), De Breuker, R. (author), van Oudheusden, B.W. (author)In the present work Robotic Volumetric PIV is applied in a Fluid-Structure Interaction (FSI) investigation. The case studied involves the dynamic response of a flexible aluminium plate subjected to gust excitation. The experiment is carried out in the Open Jet Facility at Delft University of Technology, which is equipped with a gust generator....conference paper 2019
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Handojo, V.H. (author), Meddaikar, M.Y. (author), Dillinger, J.K.S. (author), Sodja, J. (author), De Breuker, R. (author)This paper presents a semi-experimental method which can be used to predict the gust response of a wind tunnel model. The method incorporates transfer functions of the wind tunnel model – in this case a flexible forward swept wing – which are obtained using sweep excitations with a gust generator. The prediction results are then compared with...conference paper 2019
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Rajpal, D. (author), De Breuker, R. (author)High aspect ratio strut braced aircraft can significantly reduce the induced drag. The inherent anisotropic behaviour of the composite material along with their weight saving potential can improve the performance of the aircraft during the flight. Thus, a composite strut braced aircraft is one of the promising candidates to achieve the...conference paper 2019
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Natella, M. (author), De Breuker, R. (author)This paper presents a unified framework for aeroelastic tailoring of fully-flexible free-flying composite aircraft. A continuous-time state-space model is used to describe the flow. The 3D composite wing structure is condensed into a Timoshenko beam model utiliz-ing a cross-sectional modeler. The aerodynamic and structural models are tightly...conference paper 2019
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Schuurman, M.J. (author), Rattanagraikanakorn, B. (author), De Breuker, R. (author), Kassapoglou, C. (author)The introduction of Urban Air Mobility (UAM) vehicles will initiate many new and unique challenges to the current operational airspace environment. Many of these challenges are researched today, and solutions are investigated. The main goal of this ongoing research is to develop a safe and sustainable UAMsystem looking at the design of vehicles...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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Sodja, J. (author), De Breuker, R. (author), Nozak, Dejan (author), Drazumeric, Radovan (author), Marzocca, Pier (author)Low-fidelity fluid–structure interaction model of flexible propeller blades is assessed by means of comparison with high-fidelity aeroelastic results. The low-fidelity model is based on a coupled extended blade-element momentum model and non-linear beam theory which were both implemented in Matlab. High-fidelity fluid–structure interaction...journal article 2018
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Natella, M. (author), Wang, Xuerui (author), De Breuker, R. (author)This paper presents a unified framework for aeroelastic tailoring of free-flying aircraft with composite wings. A continuous-time state-space model is used to describe the flow. The 3D composite wing structures is condensed into a Timoshenko beam model by means of a cross-sectional modeler. The aerodynamic and structural models are closely...conference paper 2018
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Saunders-Smits, Gillian (author), Rans, C.D. (author), Schuurman, M.J. (author), De Breuker, R. (author), van Staalduinen, J.P. (author)In this paper, the transition from teaching on-campus to an online audience consisting of working professionals in an Aerospace Engineering context is described. The differences in the learner’s needs and the transition in teaching methods and style that is required from teaching staff is discussed. This is illustrated by two case studies: for...conference paper 2018