Wavelet Analyses Of F A 18 Aeroelastic And Aeroservoelastic Flight Test Data
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Wavelet Analyses Of F A 18 Aeroelastic And Aeroservoelastic Flight Test Data
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Author : Martin J. Brenner
language : en
Publisher:
Release Date : 1997
Wavelet Analyses Of F A 18 Aeroelastic And Aeroservoelastic Flight Test Data written by Martin J. Brenner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aeroelasticity categories.
Wavelet Analyses Of F A 18 Aeroelastic And Aeroservoelastic Flight Test Data
DOWNLOAD
Author : Martin J. Brenner
language : en
Publisher:
Release Date : 1997
Wavelet Analyses Of F A 18 Aeroelastic And Aeroservoelastic Flight Test Data written by Martin J. Brenner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aeroelasticity categories.
Time-frequency signal representations combined with subspace identification methods were used to analyze aeroelastic flight data from the F/A-18 Systems Research Aircraft (SRA) and aeroservoelastic data from the F/A-18 High Alpha Research Vehicle (HARV). The F/A-18 SRA data were produced from a wingtip excitation system that generated linear frequency chirps and logarithmic sweeps. HARV data were acquired from digital Schroeder-phased and sinc pulse excitation signals to actuator commands. Nondilated continuous Morlet wavelets implemented as a filter bank were chosen for the time-frequency analysis to eliminate phase distortion as it occurs with sliding window discrete Fourier transform techniques. Wavelet coefficients were filtered to reduce effects of noise and nonlinear distortions identically in all inputs and outputs. Cleaned reconstructed time domain signals were used to compute improved transfer functions. Time and frequency domain subspace identification methods were applied to enhanced reconstructed time domain data and improved transfer functions, respectively. Time domain subspace performed poorly, even with the enhanced data, compared with frequency domain techniques. A frequency domain subspace method is shown to produce better results with the data processed using the Morlet time-frequency technique.
Ceas Aiaa Icase Nasa Langley International Forum On Aeroelasticity And Structural Dynamics 1999
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Author :
language : en
Publisher:
Release Date : 1999
Ceas Aiaa Icase Nasa Langley International Forum On Aeroelasticity And Structural Dynamics 1999 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Aeroelasticity categories.
These proceedings represent a collection of the latest advances in aeroelasticity and structural dynamics from the world community. Research in the areas of unsteady aerodynamics and aeroelasticity, structural modeling and optimazation, active control and adaptive structures, landing dynamics, certification and qualification, and validation testing are highlighted in the collection of papers. The wide range of results will lead to advances in the prediction and control of the structural response of aircraft and spacecraft.
Wavelet Analysis And Applications
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Author : Tao Qian
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-02-24
Wavelet Analysis And Applications written by Tao Qian and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-24 with Mathematics categories.
This volume reflects the latest developments in the area of wavelet analysis and its applications. Since the cornerstone lecture of Yves Meyer presented at the ICM 1990 in Kyoto, to some extent, wavelet analysis has often been said to be mainly an applied area. However, a significant percentage of contributions now are connected to theoretical mathematical areas, and the concept of wavelets continuously stretches across various disciplines of mathematics. Key topics: Approximation and Fourier Analysis Construction of Wavelets and Frame Theory Fractal and Multifractal Theory Wavelets in Numerical Analysis Time-Frequency Analysis Adaptive Representation of Nonlinear and Non-stationary Signals Applications, particularly in image processing Through the broad spectrum, ranging from pure and applied mathematics to real applications, the book will be most useful for researchers, engineers and developers alike.
Aeroservoelastic Uncertainty Model Identification From Flight Data
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Author : Martin J. Brenner
language : en
Publisher:
Release Date : 2001
Aeroservoelastic Uncertainty Model Identification From Flight Data written by Martin J. Brenner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
On Line Robust Modal Stability Prediction Using Wavelet Processing
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Author : Martin J. Brenner
language : en
Publisher:
Release Date : 1998
On Line Robust Modal Stability Prediction Using Wavelet Processing written by Martin J. Brenner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Modal analysis categories.
Overview Of Recent Flight Flutter Testing Research At Nasa Dryden
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Author : Martin J. Brenner
language : en
Publisher:
Release Date : 1997
Overview Of Recent Flight Flutter Testing Research At Nasa Dryden written by Martin J. Brenner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aeroelasticity categories.
Nasa Conference Publication
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Author :
language : en
Publisher:
Release Date : 1999
Nasa Conference Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Aeronautics categories.
Nonstationary Dynamics Data Analysis With Wavelet Svd Filtering
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Author : Marty Brenner
language : en
Publisher:
Release Date : 2001
Nonstationary Dynamics Data Analysis With Wavelet Svd Filtering written by Marty Brenner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Aeroelasticity categories.
Wavelet Filtering To Reduce Conservatism In Aeroservoelastic Robust Stability Margins
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Author : Marty Brenner
language : en
Publisher:
Release Date : 1998
Wavelet Filtering To Reduce Conservatism In Aeroservoelastic Robust Stability Margins written by Marty Brenner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.