Higher-Order Spectral Analysis of F-18 Flight Flutter Data | Zendy

Walter Silva | Zendy; Shane Dunn | Zendy

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Higher-Order Spectral Analysis of F-18 Flight Flutter Data

Author(s) -

Walter Silva,

Shane Dunn

Publication year - 2005

Publication title -

54th aiaa/asme/asce/ahs/asc structures, structural dynamics, and materials conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2005-2014

Subject(s) - flutter , aeroelasticity , impulse (physics) , spectral density , nonlinear system , oscillation (cell signaling) , control theory (sociology) , computer science , aerospace engineering , engineering , aerodynamics , physics , telecommunications , artificial intelligence , classical mechanics , control (management) , quantum mechanics , biology , genetics

Royal Australian Air Force (RAAF) F/A-18 flight flutter test data is presented and analyzed using various techniques. The data includes high-quality measurements of forced responses and limit cycle oscillation (LCO) phenomena. Standard correlation and power spectral density (PSD) techniques are applied to the data and presented. Novel applications of experimentally-identified impulse responses and higher-order spectral techniques are also applied to the data and presented. The goal of this research is to develop methods that can identify the onset of nonlinear aeroelastic phenomena, such as LCO, during flutter testing.

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