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Aeroelastic Limit-Cycle Oscillations resulting from Aerodynamic Non-Linearities

van Rooij, A.C.L.M. (2017) Aeroelastic Limit-Cycle Oscillations resulting from Aerodynamic Non-Linearities. Dissertation. DLR-Forschungsbericht. DLR-FB-2017-26, 199 S.

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Official URL: https://repository.tudelft.nl/islandora/object/uuid:cc2f32f8-6c6f-4675-a47c-37b70ed4e30c?collection=research

Abstract

Aerodynamic non-linearities, such as shock waves, boundary layer separation or boundary layer transition, may cause an amplitude limitation of the oscillations induced by the fluid flow around a structure. These aeroelastic limit-cycle oscillations (LCOs) resulting from aerodynamic non-linearities have been studied numerically in this PhD thesis. A frequency domain-based method, called the amplitude-dependent p-k (ADePK) method, has been developed to study the bifurcation behaviour of the LCO solutions. From several extensive (structural) parameter studies, it was found that aerodynamic non-linearities, especially shock wave motions, can lead to limit-cycle oscillations that occur already below the linearly predicted flutter boundary.

Item URL in elib:https://elib.dlr.de/112752/
Document Type:Monograph (DLR-Forschungsbericht, Dissertation)
Title:Aeroelastic Limit-Cycle Oscillations resulting from Aerodynamic Non-Linearities
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
van Rooij, A.C.L.M.anouk.vanrooij (at) dlr.dehttps://orcid.org/0000-0001-8281-7441
Date:12 April 2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:199
ISSN:1434-8454
Status:Published
Keywords:aeroelasticity, limit-cycle oscillations, unsteady aerodynamics, bifurcation behaviour, structural parameter variations
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulation
Deposited By: van Rooij, Anouk
Deposited On:26 Jun 2017 16:07
Last Modified:31 Jul 2019 20:10

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