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Higher-Order Spectral Analysis of F-18 Flight Flutter DataRoyal 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.
Document ID
20050176407
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Silva, Walter A. (NASA Langley Research Center Hampton, VA, United States)
Dunn, Shane (Defence Science and Technology Organisation Australia)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
AIAA Paper 2005-2014
Meeting Information
Meeting: 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Location: Austin, TX
Country: United States
Start Date: April 18, 2005
End Date: April 21, 2005
Sponsors: American Society for Composites, American Society of Mechanical Engineers, American Society of Civil Engineers, American Helicopter Society, Inc., American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: 23-065-30-12
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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