Flutter Free FLight Envelope eXpansion for ecOnomical Performance improvement

Deliverables

The project requires a public and an internal restricted homepage to share the work within the consortium and to promote them toward the general public Various social media site like linkedin twitter and Facebook will be set up to reach different groups

Report on LFT/LPV modelling and order reduction techniques

A general overview of the LFT/LPV modelling and order reduction techniques that are applicable for the flexible aircraft problems.

Report on robust analysis techniques for flexible aircraft and flutter
Report on flexible aircraft control techniques
Report on aeroelastic tailoring methods

The review of the approaches to design aeroelastically tailored wings taken by the consortium

Release of the flight test results and models of the a/c for the community

In accordance with the open research data initiative, flight test results and models of the demonstrator are released to the community. The models and data are documented in this report.

Workshop / Final Exploitation and Dissemination Report

The results of the project are presented in an international Workshop. The conclusions and summary of this event and the responses from various stakeholders are described in this report.

Publications

Design of a flying demonstrator wing for manoeuvre load alleviation with cruise shape constraint

Author(s): Jurij Sodja, Noud Werter, Roeland De Breuker
Published in: 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018, ISBN 978-1-62410-532-6
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2018-2153

Aeroelastic Stability Analysis of the FLEXOP Demonstrator using the Continuous Time Unsteady Vortex Lattice Method

Author(s): Simon Binder, Andreas Wildschek, Roeland De Breuker
Published in: 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018, ISBN 978-1-62410-532-6
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2018-0950

Designing an UAV Propulsion System for Dedicated Acceleration and Deceleration Requirements

Author(s): Franz-Michael Sendner, Philipp Stahl, Christian Rößler, Mirko Hornung
Published in: 17th AIAA Aviation Technology, Integration, and Operations Conference, 2017, ISBN 978-1-62410-508-1
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2017-4105

Mission and Aircraft Design of FLEXOP Unmanned Flying Demonstrator to Test Flutter Suppression within Visual Line of Sight

Author(s): Philipp Stahl, Franz-Michael Sendner, Andreas Hermanutz, Christian Rößler, Mirko Hornung
Published in: 17th AIAA Aviation Technology, Integration, and Operations Conference, 2017, ISBN 978-1-62410-508-1
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2017-3766

Aeroelastic Analysis of a Flutter Demonstrator with a very Flexible High-Aspect-Ratio Swept Wing

Author(s): Rozov, V.; Hermanutz, A.; Breitsamter, C.; Hornung, M
Published in: International Forum on Aeroelasticity and Structural Dynamics [IFASD], 2017, Issue 28 June 2017, 2017
Publisher: International Forum on Aeroelasticity and Structural Dynamics

Flight control oriented bottom-up nonlinear modeling of aeroelastic vehicles

Author(s): Bela Takarics, Balint Vanek, Aditya Kotikalpudi, Peter Seiler
Published in: 2018 IEEE Aerospace Conference, 2018, Page(s) 1-10, ISBN 978-1-5386-2014-4
Publisher: IEEE
DOI: 10.1109/AERO.2018.8396537

Tensor product type polytopic LPV modeling of aeroelastic aircraft

Author(s): Bela Takarics, Alexandra Szollosi, Balint Vanek
Published in: 2018 IEEE Aerospace Conference, 2018, Page(s) 1-10, ISBN 978-1-5386-2014-4
Publisher: IEEE
DOI: 10.1109/AERO.2018.8396538

Control oriented reduced order modeling of a flexible winged aircraft

Author(s): Tamas Luspay, Tamas Peni, Balint Vanek
Published in: 2018 IEEE Aerospace Conference, 2018, Page(s) 1-9, ISBN 978-1-5386-2014-4
Publisher: IEEE
DOI: 10.1109/AERO.2018.8396496

Nonlinear flutter analysis with uncertainties based on Describing Function and Structured Singular Value with an IQC validation

Author(s): Iannelli, Marcos, Lowenberg
Published in: Proceedings of the 7th European Conference for Aeronautics and Space Sciences (EUCASS 2017) , 2017
Publisher: -
DOI: 10.13009/EUCASS2017-90

Nonlinear stability and post-critical analysis of an uncertain plant with describing functions and integral quadratic constraints

Author(s): Andrea Iannelli, Andres Marcos, Mark Lowenberg
Published in: 2017 IEEE 56th Annual Conference on Decision and Control (CDC), Issue 18/1/2018, 2017, Page(s) 1828-1833, ISBN 9781-509028740
Publisher: IEEE
DOI: 10.1109/CDC.2017.8263913

Model order reduction of LPV systems based on parameter varying modal decomposition

Author(s): Istvan Gozse, Tamas Luspay, Tamas Peni, Zoltan Szabo, Balint Vanek
Published in: 2016 IEEE 55th Conference on Decision and Control (CDC), 2016, Page(s) 7459-7464, ISBN 978-1-5090-1837-6
Publisher: IEEE
DOI: 10.1109/CDC.2016.7799421

Modeling and robust Body Freedom Flutter Analysis of flexible aircraft configurations

Author(s): Andrea Iannelli, Andres Marcos, Mark Lowenberg
Published in: 2016 IEEE Conference on Control Applications (CCA), 2016, Page(s) 243-248, ISBN 978-1-5090-0755-4
Publisher: IEEE
DOI: 10.1109/CCA.2016.7587843

Aircraft Design and Testing of FLEXOP Unmanned Flying Demonstrator to Test Load Alleviation and Flutter Suppression of High Aspect Ratio Flexible Wings

Author(s): Christian Roessler, Philipp Stahl, Franz Sendner, Andreas Hermanutz, Sebastian Koeberle, Julius Bartasevicius, Vladyslav Rozov, Christian Breitsamter, Mirko Hornung, Yasser M. Meddaikar, Johannes Dillinger, Jurij Sodja, Roeland De Breuker, Christos Koimtzoglou, Dimitrios Kotinis, Panagiotis Georgopoulos
Published in: AIAA Scitech 2019 Forum, Issue na, 2019, Page(s) na, ISBN 978-1-62410-578-4
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2019-1813

FLEXOP – Application of aeroelastic tailoring to a flying demonstrator wing

Author(s): Muhammad Yasser Meddaikar, Johannes Dillinger, Jurij Sodja, Roeland De Breuker
Published in: DLRK 2018 – Deutscher Luft- und Raumfahrtkongress, Issue 04.-06. Sep. 2018, 2018, Page(s) na
Publisher: Deutscher Luft- und Raumfahrtkongress

Design of an Electric Actuated Airbrake for Dynamic Airspeed Control of an Unmanned Aeroelastic Research UAV

Author(s): Franz-Michael Sendner, Philipp Stahl, Christian Rössler, Mirko Hornung
Published in: 2018 Aviation Technology, Integration, and Operations Conference, Issue na, 2018, Page(s) na, ISBN 978-1-62410-556-2
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2018-3194

Baseline Flight Control System Design for an Unmanned Flutter Demonstrator

Author(s): Daniel Ossmann, Tamas Luspay, Balint Vanek
Published in: 2019 IEEE Aerospace Conference, Issue yearly, 2019, Page(s) 1-10, ISBN 978-1-5386-6854-2
Publisher: IEEE
DOI: 10.1109/aero.2019.8741853

Aeroservoelastic Modeling and Analysis of a Highly Flexible Flutter Demonstrator

Author(s): Matthias Wuestenhagen, Thiemo Kier, Yasser M. Meddaikar, Manuel Pusch, Daniel Ossmann, Andreas Hermanutz
Published in: 2018 Atmospheric Flight Mechanics Conference, Issue na, 2018, Page(s) na, ISBN 978-1-62410-557-9
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2018-3150

Aircraft Aeroservoelastic Modelling of the FLEXOP Unmanned Flying Demonstrator

Author(s): Yasser M. Meddaikar, Johannes Dillinger, Thomas Klimmek, Wolf Krueger, Matthias Wuestenhagen, Thiemo M. Kier, Andreas Hermanutz, Mirko Hornung, Vladyslav Rozov, Christian Breitsamter, James Alderman, Bela Takarics, Balint Vanek
Published in: AIAA Scitech 2019 Forum, Issue yearly, 2019, Page(s) na, ISBN 978-1-62410-578-4
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2019-1815

Advanced Aeroelastic Robust Stability Analysis with Structural Uncertainties

Author(s): Süelözgen, Özge
Published in: EuroGNC 2019 5th CEAS Conference on Guidance, Navigation & Control, 2019
Publisher: The Council of European Aerospace Societies

Operational Modal Analysis For Simulated Flight Flutter Test Of An Unconventional Aircraft

Author(s): Süelözgen, Özge and Wüstenhagen, Matthias
Published in: International Forum on Aeroelasticity and Structural Dynamics IFASD 2019, 2019
Publisher: International Forum on Aeroelasticity and Structural Dynamics

Algorithms for the estimation of the region of attraction with positively invariant sets

Author(s): Andrea Iannelli, Andres Marcos, Mark Lowenberg
Published in: 2018 7th International Conference on Systems and Control (ICSC), Issue Aug. 2018, 2018, Page(s) 93-98, ISBN 978-1-5386-8537-2
Publisher: IEEE
DOI: 10.1109/icosc.2018.8587774

Estimating the Region of Attraction of Uncertain Systems with Integral Quadratic Constraints

Author(s): Andrea Iannelli, Peter Seiler, Andres Marcos
Published in: 2018 IEEE Conference on Decision and Control (CDC), 2018, Page(s) 3922-3927, ISBN 978-1-5386-1395-5
Publisher: IEEE
DOI: 10.1109/cdc.2018.8619669

An equilibrium-independent region of attraction formulation for systems with uncertainty-dependent equilibria

Author(s): Andrea Iannelli, Andres Marcos, Peter Seiler
Published in: 2018 IEEE Conference on Decision and Control (CDC), 2018, Page(s) 725-730, ISBN 978-1-5386-1395-5
Publisher: IEEE
DOI: 10.1109/cdc.2018.8619153

Flight control design for a highly flexible flutter demonstrator

Author(s): Tamás Luspay, Daniel Ossmann, Matthias Wuestenhagen, Dániel Teubl, Tamás Baár, Manuel Pusch, Thiemo M. Kier, Sergio Waitman, Andrea Ianelli, Andres Marcos, Balint Vanek, Mark H. Lowenberg
Published in: AIAA Scitech 2019 Forum, 2019, ISBN 978-1-62410-578-4
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2019-1817

An extension of the structured singular value to nonlinear systems with application to robust flutter analysis

Author(s): Iannelli, A. , Lowenberg, M., & Marcos, A.
Published in: 5th CEAS Conference on Guidance, Navigation & Control, Milan, Italy, 3/04/19, 2019
Publisher: EURO GNC

A symbolic LFT approach for robust flutter analysis of high-order models

Author(s): Andrea Iannelli, Andres Marcos, Rocco Bombardieri, Rauno Cavallaro
Published in: 2019 18th European Control Conference (ECC), 2019, Page(s) 961-967, ISBN 978-3-907144-00-8
Publisher: IEEE
DOI: 10.23919/ecc.2019.8796122

Active Flutter Mitigation Testing on the FLEXOP Demonstrator Aircraft

Author(s): Béla Takarics, Bálint Patartics, Tamás Luspay, Balint Vanek, Christian Roessler, Julius Bartasevicius, Sebastian J. Koeberle, Mirko Hornung, Daniel Teubl, Manuel Pusch, Matthias Wustenhagen, Thiemo M. Kier, Gertjan Looye, Péter Bauer, Yasser M. Meddaikar, Sergio Waitman, Andres Marcos
Published in: AIAA Scitech 2020 Forum, 2020, ISBN 978-1-62410-595-1
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/6.2020-1970

Design of System Architecture for Active Flutter Suppression

Author(s): Stefan Vocks
Published in: 2017
Publisher: Uni Stuttgart

Aeroelastic control law design using different synthesis methods (Master thesis)

Author(s): Simon Schulz
Published in: 2017
Publisher: University of Stuttgart

Retrospective Cost Adaptive Control of a flexible Aircraft

Author(s): Alexander Böhm
Published in: Master Thesis, 2016
Publisher: Technische Universität München

Condensation of Large 3D FEM Models and Integration in dAEDalus for Fast Dynamic Aeroelastic Analysis

Author(s): Daniel Stein
Published in: Master Thesis, 2016
Publisher: University of Stuttgart

Advanced Linear and Nonlinear Analysis of Aircraft Flutter

Author(s): Andrea Iannelli
Published in: PhD thesis, Issue March 2019, 2019
Publisher: University of Bristol

LPV model reduction methods for aeroelastic structures * *The research leading to these results is part of the FLEXOP project. This project has received funding from the European Unions Horizon 2020 research and innovation programme under grant agreement No 636307.

Author(s): Gy. Lipták, T. Luspay, T. Péni, B. Takarics, B. Vanek
Published in: IFAC-PapersOnLine, Issue 50/1, 2017, Page(s) 6344-6349, ISSN 2405-8963
Publisher: IFAC
DOI: 10.1016/j.ifacol.2017.08.1015

Parameter varying flutter suppression control for the BAH jet transport wing * *The research leading to these results is part of the FLEXOP project. This project has received funding from the Horizon 2020 research and innovation programme of the European Union under grant agreement No 636307.

Author(s): B. Patartics, T. Luspay, T. Péni, B. Takarics, B. Vanek, T. Kier
Published in: IFAC-PapersOnLine, Issue 50/1, 2017, Page(s) 8163-8168, ISSN 2405-8963
Publisher: IFAC
DOI: 10.1016/j.ifacol.2017.08.1263

On the correspondence of hyperbolic geometry and system analysis

Author(s): István Gőzse, Tamás Péni, Tamás Luspay, Alexandros Soumelidis
Published in: IFAC-PapersOnLine, Issue 50/1, 2017, Page(s) 9285-9290, ISSN 2405-8963
Publisher: IFAC
DOI: 10.1016/j.ifacol.2017.08.917

Model reduction for LPV systems based on approximate modal decomposition

Author(s): Tamás Luspay, Tamás Péni, István Gőzse, Zoltán Szabó, Bálint Vanek
Published in: International Journal for Numerical Methods in Engineering, Issue 113/6, 2018, Page(s) 891-909, ISSN 0029-5981
Publisher: John Wiley & Sons Inc.
DOI: 10.1002/nme.5692

LFT Modeling and μ Analysis of the Aircraft Landing Benchmark

Author(s): Andrea Iannelli, Pedro Simplício, Diego Navarro-Tapia, Andrés Marcos
Published in: IFAC-PapersOnLine, Issue 50/1, 2017, Page(s) 3965-3970, ISSN 2405-8963
Publisher: IFAC
DOI: 10.1016/j.ifacol.2017.08.766

Estimating the region of attraction of uncertain systems with invariant sets

Author(s): A. Iannelli, A. Marcos, M. Lowenberg
Published in: IFAC-PapersOnLine, Issue 51/25, 2018, Page(s) 246-251, ISSN 2405-8963
Publisher: International Federation of Automatic Control
DOI: 10.1016/j.ifacol.2018.11.113

Study of Flexible Aircraft Body Freedom Flutter with Robustness Tools

Author(s): Andrea Iannelli, Andrés Marcos, Mark Lowenberg
Published in: Journal of Guidance, Control, and Dynamics, Issue 41/5, 2018, Page(s) 1083-1094, ISSN 0731-5090
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/1.G003165

Aeroelastic modeling and stability analysis: A robust approach to the flutter problem

Author(s): Andrea Iannelli, Andrés Marcos, Mark Lowenberg
Published in: International Journal of Robust and Nonlinear Control, Issue 28/1, 2018, Page(s) 342-364, ISSN 1049-8923
Publisher: John Wiley & Sons Inc.
DOI: 10.1002/rnc.3878

Nonlinear Robust Approaches to Study Stability and Postcritical Behavior of an Aeroelastic Plant

Author(s): Andrea Iannelli, Andres Marcos, Mark Lowenberg
Published in: IEEE Transactions on Control Systems Technology, Issue 27/2, 2018, Page(s) 1-14, ISSN 1063-6536
Publisher: Institute of Electrical and Electronics Engineers
DOI: 10.1109/TCST.2017.2779110

FLEXIBILIS SZÁRNYÚ REPÜLŐGÉP AKTÍV FLATTER SZABÁLYOZÁSA (Hungarian)

Author(s): Patartics Bálint, Péni Tamás, Vanek Bálint
Published in: Repüléstudományi Közlemények, 2018, ISSN 1789-770X
Publisher: Nemzeti Közszolgálati Egyetem Katonai Repülő Intézet

Comparison of Aeroelastic Modeling and Robust Flutter Analysis of a Typical Section**This work has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 636307, project FLEXOP

Author(s): A. Iannelli, A. Marcos, M. Lowenberg
Published in: IFAC-PapersOnLine, Issue 49/17, 2016, Page(s) 409-414, ISSN 2405-8963
Publisher: 20th IFAC Symposium on Automatic Control in AerospaceACA 2016
DOI: 10.1016/j.ifacol.2016.09.070

Structured Control Design for a Highly Flexible Flutter Demonstrator

Author(s): Manuel Pusch, Daniel Ossmann, Tamás Luspay
Published in: Aerospace, Issue 6/3, 2019, Page(s) 27, ISSN 2226-4310
Publisher: MDPI
DOI: 10.3390/aerospace6030027

Robust estimations of the Region of Attraction using invariant sets

Author(s): Andrea Iannelli, Andrés Marcos, Mark Lowenberg
Published in: Journal of the Franklin Institute, Issue 356/8, 2019, Page(s) 4622-4647, ISSN 0016-0032
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.jfranklin.2019.02.013

Worst-Case Disturbances for Time-Varying Systems with Application to Flexible Aircraft

Author(s): Andrea Iannelli, Peter Seiler, Andrés Marcos
Published in: Journal of Guidance, Control, and Dynamics, Issue 42/6, 2019, Page(s) 1261-1271, ISSN 0731-5090
Publisher: American Institute of Aeronautics and Astronautics
DOI: 10.2514/1.g004023

Region of attraction analysis with Integral Quadratic Constraints

Author(s): Andrea Iannelli, Peter Seiler, Andrés Marcos
Published in: Automatica, Issue 109, 2019, Page(s) 108543, ISSN 0005-1098
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.automatica.2019.108543

H∞ Control Design for Active Flutter Suppression of Flexible-Wing Unmanned Aerial Vehicle Demonstrator

Author(s): Sérgio Waitman, Andrés Marcos
Published in: Journal of Guidance, Control, and Dynamics, Issue Online: 20 Dec. 2019, 2019, Page(s) 1-17, ISSN 1533-3884
Publisher: American Institute of Aeronautics & Astronautics
DOI: 10.2514/1.g004618

Linear Fractional Transformation co-modeling of high-order aeroelastic systems for robust flutter analysis

Author(s): Andrea Iannelli, Andrés Marcos, Rocco Bombardieri, Rauno Cavallaro
Published in: European Journal of Control, Issue Published online: 12 Dec. 2019, 2019, ISSN 0947-3580
Publisher: Lavoisier
DOI: 10.1016/j.ejcon.2019.12.002

Active flutter suppression: non-structured and structured H∞ design

Author(s): Sérgio Waitman, Andrés Marcos
Published in: IFAC-PapersOnLine, Issue 52/12, 2019, Page(s) 146-151, ISSN 2405-8963
Publisher: International Federation of Automatic Control
DOI: 10.1016/j.ifacol.2019.11.184

Limit cycle oscillation amplitude tailoring based on describing functions and μ analysis

Author(s): Andrea Iannelli, Andrés Marcos, Mark Lowenberg
Published in: 4th CEAS Specialist Conference on Guidance, Navigation and Control (EuroGNC 2017), Issue Published online: 15 Dec. 2017, 2017, Page(s) 101-119, ISBN 978-3-319-65282-5
Publisher: Springer International Publishing
DOI: 10.1007/978-3-319-65283-2_6

Model reduction for LPV systems based on approximate modal decomposition

Author(s): T. Luspay, T. Peni, I. Gozse, Z. Szabo, B. Vanek
Published in: arXiv online repository of scientific papers, 2016
Publisher: Cornell University Library

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