Characterizing stability of responses in a nonlinear aeroelastic system
Publication
, Journal Article
Trickey, ST; Virgin, LN; Dowell, EH
Published in: Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
January 1, 2000
A method for investigating the degree of stability of nonlinear limit cycle oscillations (LCO) observed in an aeroelastic system is presented. The system considered is a typical section airfoil model with a free-play nonlinearity in the control surface stiffness. Stability information of the LCO is obtained by fitting a map to an ensemble of perturbation induced transient data and then observing the properties of the map as a function of flow speed. Stability analysis of the linear subdomains only can suggest approximate locations of global system features such as LCO onset and flutter. Whereas the proposed method allows for the nonlinearity and thus can indicate impending stability transitions with much greater accuracy.
Duke Scholars
Published In
Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN
0273-4508
Publication Date
January 1, 2000
Volume
1
Issue
I
Start / End Page
57 / 62
Citation
APA
Chicago
ICMJE
MLA
NLM
Trickey, S. T., Virgin, L. N., & Dowell, E. H. (2000). Characterizing stability of responses in a nonlinear aeroelastic system. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 1(I), 57–62.
Trickey, S. T., L. N. Virgin, and E. H. Dowell. “Characterizing stability of responses in a nonlinear aeroelastic system.” Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 1, no. I (January 1, 2000): 57–62.
Trickey ST, Virgin LN, Dowell EH. Characterizing stability of responses in a nonlinear aeroelastic system. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2000 Jan 1;1(I):57–62.
Trickey, S. T., et al. “Characterizing stability of responses in a nonlinear aeroelastic system.” Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, vol. 1, no. I, Jan. 2000, pp. 57–62.
Trickey ST, Virgin LN, Dowell EH. Characterizing stability of responses in a nonlinear aeroelastic system. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2000 Jan 1;1(I):57–62.
Published In
Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN
0273-4508
Publication Date
January 1, 2000
Volume
1
Issue
I
Start / End Page
57 / 62