Response Characteristics of a Wing in Supersonic Flow Near Flutter Boundary 911999
In this paper we examine numerically the subcritical flutter characteristics of wings in a supersonic flow. Especially the scattering property of the criterion parameters which are used in order to estimate a flutter boundary, is studied. The wing response due to the flow turbulence is expressed by the autoregressive moving-average process through Akaike's estimation procedure. The wing stability is evaluated by applying the Jury's stability determinant method for a discrete system to the estimated time series model. The flutter boundary is predicted by plotting the Jury's stability criterion parameter at several dynamic pressures in the subcritical range. As the dynamic pressure approaches to the flutter boundary, the estimated stability parameter and its scattering monotonically decreases while the damping, the conventional flutter estimation criterion, scattered so much near the flutter boundary.
Citation: Torii, H. and Matsuzaki, Y., "Response Characteristics of a Wing in Supersonic Flow Near Flutter Boundary," SAE Technical Paper 911999, 1991, https://doi.org/10.4271/911999. Download Citation
Author(s):
Hiroshi Torii, Yuji Matsuzaki
Pages: 6
Event:
International Pacific Air & Space Technolgy Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
International Pacific Air and Space Technology Conference and 29th Aircraft Symposium Proceedings-P-246, SAE 1991 Transactions - Aerospace-V100-1
Related Topics:
Wings
Turbulence
Pressure
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