Flutter Prediction Using Wavelet Transform
説明
[Abstract] The present paper proposes a new methodology to predict flutter. The method is based on the wavelet transform, which transforms time signals into the localized time-frequency domain. A flutter test was conducted at a low speed wind tunnel to obtain experimental data in sub-critical region. The prediction technique was applied to the response signals of a low-aspect-ratio wing model subjected to the windtunnel turbulence. It was found that the linear extrapolation of a new index defined in the transformed domain could well predict the flutter speed. The other prediction methods were also examined with the same signals to compare their predictability.
収録刊行物
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- 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
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48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2007-04-23
American Institute of Aeronautics and Astronautics (AIAA)