Print Email Facebook Twitter Experimental investigation of flutter boundary with controlled vibration levels Title Experimental investigation of flutter boundary with controlled vibration levels Author Sodja, J. (TU Delft Aerospace Structures & Computational Mechanics) Roizner, Federico (Technion) De Breuker, R. (TU Delft Aerospace Structures & Computational Mechanics) Karpel, M. (TU Delft Aerospace Structures & Computational Mechanics; Technion) Date 2017-01-01 Abstract The first experimental application of the Parametric Flutter Margin method for identification of aeroelastic instabilities is presented. The experiment was performed in two steps using a two degree-of-freedom wing model mounted in the wind tunnel. First, the reference flutter and divergence conditions were found by increasing the airstream velocity until the observed response diverged. Then, the system was stabilized according to the Parametric Flutter Margin methodology, and the flutter and divergence conditions of the original wing were identified positively while being in a stable regime demonstrating excellent agreement with the reference instability conditions. Although, the new experimental methodology is not model based, the results were compared with a theoretical model showing good agreement as well. The acquired data proves both the accuracy of the Parametric Flutter Margin method as well as its capability to test for aeroelastic instabilities, both flutter and divergence, in stable and predictive testing conditions. Subject Divergence.Experimental aeroelasticityFlutterParametric flutter margin To reference this document use: http://resolver.tudelft.nl/uuid:6afb3f36-ec83-4f1f-8813-6fadf4d01ce3 Publisher International Forum on Aeroelasticity and Structural Dynamics (IFASD) Embargo date 2019-07-01 ISBN 9788897576280 Source 17th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2017, 2017-June Event 17th International Forum on Aeroelasticity and Structural Dynamics, 2017-06-25 → 2017-06-28, Como, Italy Part of collection Institutional Repository Document type conference paper Rights © 2017 J. Sodja, Federico Roizner, R. De Breuker, M. Karpel Files PDF manuscript_v5_TUD_repository.pdf 1.01 MB Close viewer /islandora/object/uuid:6afb3f36-ec83-4f1f-8813-6fadf4d01ce3/datastream/OBJ/view