Higher-order spectral analysis of a nonlinear pitch and plunge apparatus

Walter A. Silva; Thomas W. Strganac; Muhammad R. Hajj

doi:10.2514/6.2005-2013

Higher-order spectral analysis of a nonlinear pitch and plunge apparatus

Walter A. Silva
, Thomas W. Strganac
, Muhammad R. Hajj

NASA Langley Research Center
Texas A&M University

Research output: Contribution to journal › Conference article › peer-review

20 Scopus citations

Abstract

Simulated aeroelastic responses of a nonlinear pitch and plunge apparatus are analyzed using various statistical signal processing techniques including higher-order spectral methods. A MATLAB version of the Nonlinear Aeroelastic Testbed Apparatus (NATA) at the Texas A&M University is used to generate various aeroelastic response data including limit cycle oscillations (LCO). Traditional and higher-order spectral (HOS) methods are applied to the simulated aeroelastic responses. Higher-order spectral methods are used to identify critical signatures that indicate the transition from linear to nonlinear (LCO) aeroelastic behavior.

Original language	English
Pages (from-to)	2643-2662
Number of pages	20
Journal	Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume	4
DOIs	https://doi.org/10.2514/6.2005-2013
State	Published - 2005
Event	46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Austin, TX, United States Duration: 18 Apr 2005 → 21 Apr 2005

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10.2514/6.2005-2013

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abstract = "Simulated aeroelastic responses of a nonlinear pitch and plunge apparatus are analyzed using various statistical signal processing techniques including higher-order spectral methods. A MATLAB version of the Nonlinear Aeroelastic Testbed Apparatus (NATA) at the Texas A\&M University is used to generate various aeroelastic response data including limit cycle oscillations (LCO). Traditional and higher-order spectral (HOS) methods are applied to the simulated aeroelastic responses. Higher-order spectral methods are used to identify critical signatures that indicate the transition from linear to nonlinear (LCO) aeroelastic behavior.",

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T1 - Higher-order spectral analysis of a nonlinear pitch and plunge apparatus

AU - Silva, Walter A.

AU - Strganac, Thomas W.

AU - Hajj, Muhammad R.

PY - 2005

Y1 - 2005

N2 - Simulated aeroelastic responses of a nonlinear pitch and plunge apparatus are analyzed using various statistical signal processing techniques including higher-order spectral methods. A MATLAB version of the Nonlinear Aeroelastic Testbed Apparatus (NATA) at the Texas A&M University is used to generate various aeroelastic response data including limit cycle oscillations (LCO). Traditional and higher-order spectral (HOS) methods are applied to the simulated aeroelastic responses. Higher-order spectral methods are used to identify critical signatures that indicate the transition from linear to nonlinear (LCO) aeroelastic behavior.

AB - Simulated aeroelastic responses of a nonlinear pitch and plunge apparatus are analyzed using various statistical signal processing techniques including higher-order spectral methods. A MATLAB version of the Nonlinear Aeroelastic Testbed Apparatus (NATA) at the Texas A&M University is used to generate various aeroelastic response data including limit cycle oscillations (LCO). Traditional and higher-order spectral (HOS) methods are applied to the simulated aeroelastic responses. Higher-order spectral methods are used to identify critical signatures that indicate the transition from linear to nonlinear (LCO) aeroelastic behavior.

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U2 - 10.2514/6.2005-2013

DO - 10.2514/6.2005-2013

M3 - Conference article

AN - SCOPUS:28844480549

SN - 0273-4508

VL - 4

SP - 2643

EP - 2662

JO - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

JF - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

T2 - 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

Y2 - 18 April 2005 through 21 April 2005

ER -

Higher-order spectral analysis of a nonlinear pitch and plunge apparatus

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