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Tsatsas, I. (author), Georgopoulos, P. (author), Sodja, J. (author), De Breuker, R. (author)
This paper presents an experimental investigation into the aeroelastic behavior of an innovative wind turbine design featuring a downwind two-blade rotor with a teetering hub mounted on a tower with adjustable tilt. The rotor model incorporates two sets of elastic blades—stiff and flexible—for scaling purposes, each instrumented with strain...
conference paper 2024
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Carrillo Córcoles, X. (author), De Breuker, R. (author), Sodja, J. (author)
This study explores the implementation of aeroelastic tailoring in the design of a regional aircraft featuring a strut-braced wing (SBW). Making use of the aeroelastic optimisation framework from Delft University of Technology, PROTEUS, the research addresses two distinct cases. The first case involves a simplified SBW geometry to validate the...
conference paper 2024
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Carrillo Córcoles, X. (author), De Breuker, R. (author), Sodja, J. (author)
Previous numerical and experimental studies have shown the load alleviation capabilities of the flared folding wingtip. However, they have also shown the complex dynamics of the system and the limitations in the results obtained by modeling such an aeroelastic system using linear models, which cannot capture the effects of the large wingtip...
conference paper 2023
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Georgopoulos, P. (author), Sodja, J. (author), De Breuker, R. (author)
In this paper, an innovative design methodology is proposed to simultaneously optimize the size, layout, and number of stiffeners of a stiffened panel using a gradient-based optimizer. In the proposed method, CAD-based parameterization is used to parameterize the layout of the stiffeners. The location and orientation of each stiffener are...
conference paper 2023
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Carrillo Córcoles, X. (author), Sodja, J. (author), De Breuker, R. (author)
The ram air inlets flaps are used in some aircraft to modulate the amount of ram<br/>air cooling the Environmental Control System. The current flap design features two metallic plates connected with a hinge. The present work studies an alternative design that replaces the metallic plates with a single composite laminate with morphing...
conference paper 2023
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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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Schildkamp, R.R.M. (author), Chang, J. (author), Sodja, J. (author), De Breuker, R. (author), Wang, Xuerui (author)
This paper proposes an incremental nonlinear control method for aeroelastic sys- tem gust load alleviation and active flutter suppression. These two control objectives can be achieved without modifying the control architecture or the control parameters. The proposed method has guaranteed stability in the Lyapunov sense and also has robustness...
conference paper 2022
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Carrillo Córcoles, X. (author), Mertens, C. (author), Sciacchitano, A. (author), van Oudheusden, B.W. (author), De Breuker, R. (author), Sodja, J. (author)
An aeroelastic wind tunnel experiment to identify the influence of the wing stiffness and hinge release threshold on the gust load alleviation performance of a folding wingtip design is presented in this study. Five models with different stiffness and tailoring properties are tested and the wing root bending moment at different conditions is...
conference paper 2022
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Zahoor, Y. (author), Sodja, J. (author), De Breuker, R. (author)
This paper presents an overview of the design and validation of a novel passive camber morphing system for rotorcraft. The passive system works for a variable speed rotor where a potential increase in pilot control authority and power reduction is possible. In the proposed concept, the rotor speed is varied by 10% to change the apparent...
conference paper 2022
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Sodja, J. (author), De Breuker, R. (author)
The paper proposes a methodology for increased-fidelity aeroelastic testing in a wind tunnel environment to improve the correlation between the aeroelastic response measured in a wind tunnel experiment and the aeroelastic response observed on an aircraft in flight. The focus of the current study is to assess the potential of the proposed...
conference paper 2022
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Mkhoyan, T. (author), Thakrar, N.R. (author), De Breuker, R. (author), Sodja, J. (author)
In this study, the design and development of an autonomous morphing wing concept were investigated. The morphing wing was developed in the scope of the Smart-X project, aiming to demonstrate in-flight performance optimisation. This study proposed a novel distributed morphing concept, with six Translation Induced Camber (TRIC) morphing trailing...
conference paper 2021
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Zahoor, Y. (author), Sodja, J. (author), De Breuker, R. (author), Voskuijl, M. (author)
This paper discusses the development and whirl tower testing of an active translation induced camber morphing system for rotorcraft. The system deploys the morphing flap based on the amplitude and type of the input signal. As a case study, a demonstrator is developed and tested primarily under the centrifugal force generated by a whirl tower...
conference paper 2021
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Mkhoyan, T. (author), Thakrar, Nisarg Rashmin (author), De Breuker, R. (author), Sodja, J. (author)
In this study, the design and development of an autonomous morphing wing concept were investigated. This morphing wing was developed in the scope of, the Smart-X project, aiming to demonstrate in-flight performance optimisation. This study proposed a novel distributed morphing concept, with six Translation Induced Camber (TRIC) morphing...
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
document
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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Meddaikar, M.Y. (author), Dillinger, J.K.S. (author), Sodja, J. (author), De Breuker, R. (author)
This paper presents the application of aeroelastic tailoring in the design of flying demonstrator wings. The work is part of the Flutter Free Flight Envelope eXpansion (FLEXOP) project, funded under the Horizon 2020 framework. The project involves the design, manufacturing and flight-testing of a UAV toward two principle goals: i) to demonstrate...
conference paper 2018
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Sodja, J. (author), Werter, N.P.M. (author), De Breuker, R. (author)
Application of the aeroelastic framework developed at Delft University of Technology to a design of the tailored composite wing for a flying demonstrator is presented in this paper. In the design process the structural mass of the wing is minimised including a cruise shape constraint. Introduction of the cruise shape constraint is explained...
conference paper 2018
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