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Lateral Aerodynamics Extracted From Flight Tests Using A Parameter Estimation Method
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Book Synopsis Lateral Aerodynamics Extracted from Flight Tests Using a Parameter Estimation Method by : R. A. Feik
Download or read book Lateral Aerodynamics Extracted from Flight Tests Using a Parameter Estimation Method written by R. A. Feik and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flight data from a 60 degree delta wing aircraft have been analysed using a modified Newton-Raphson parameter estimation procedure. The model equations used for the analysis were extended to account for sideslip vane errors and for lateral accelerometer position error. Lateral derivatives extracted from the data have been compared with wind tunnel measurements and theoretical estimates and areas of agreement and disagreement identified. The method has also been applied to the analysis of fin loads measured in flight and some tentative conclusions reached. The results confirm the effectiveness of the parameter identification procedure in flight test analysis and its ready applicability to a variety of related problems. (Author).
Book Synopsis Longitudinal Aerodynamics Extracted from Flight Tests Using a Parameter Estimation Method by : R. A. Feik
Download or read book Longitudinal Aerodynamics Extracted from Flight Tests Using a Parameter Estimation Method written by R. A. Feik and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flight data from a 60 deg. delta wing aircraft have been analysed using a modified Newton-Raphson parameter estimation procedure. The model equations used for the analysis were extended to account for incidence vane errors and non-linearities in the pitching moment curves. Longitudinal derivatives extracted from the data have been compared with wind tunnel measurements and some theoretical estimates and areas of agreement and disagreement identified. The results demonstrate the usefulness of the parameter identification method not only for the validation of aircraft mathematical models and for checking flight results against wind tunnel data but also for obtaining aerodynamic data not easily available through other means. (Author).
Book Synopsis Aerodynamic Parameters of the Navion Airplane Extracted from Flight Data by : William Tull Suit
Download or read book Aerodynamic Parameters of the Navion Airplane Extracted from Flight Data written by William Tull Suit and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An iterative method, which is characterized as a maximum-likelihood minimum-variance technique, was used to extract the aerodynamic parameters of a Navion airplane from flight data. The purposes were to compare the results with parameters obtained from wind-tunnel tests and with results obtained by analog matching the same data, and to develop techniques for application of the parameter extraction program. Results from the study showed that the parameter-extraction program can produce aerodynamic parameters which will permit close estimation of the aircraft time histories used in the extraction process. The program determined an estimate of the standard deviations of the states and parameters. These estimates were used to indicate how well the calculated states fit the flight data and the confidence in the values of the estimated parameters. The study also showed that the values of the parameters were affected by the data and mathematical model used during the extraction process. Because of the lack of confidence in the parameters extracted by use of some of the sets of data, several parameters were estimated by other methods. By using a combination of methods, a set of parameters which gave a fit to the data was obtained.
Book Synopsis Parameter Estimation Techniques and Applications in Aircraft Flight Testing by :
Download or read book Parameter Estimation Techniques and Applications in Aircraft Flight Testing written by and published by . This book was released on 1974 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparison of Stability and Control Parameters for a Light, Single-engine, High-winged Aircraft Using Different Flight Test and Parameter Estimation Techniques by :
Download or read book Comparison of Stability and Control Parameters for a Light, Single-engine, High-winged Aircraft Using Different Flight Test and Parameter Estimation Techniques written by and published by . This book was released on 1979 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 1038 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inverse Problems, Design and Optimization - vol. 1 by :
Download or read book Inverse Problems, Design and Optimization - vol. 1 written by and published by Editora E-papers. This book was released on with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lateral Stability and Control Derivates of a Jet Fighter Airplane Extracted from Flight Test Data by Utilizing Maximum Likelihood Estimation by : Russell V. Parrish
Download or read book Lateral Stability and Control Derivates of a Jet Fighter Airplane Extracted from Flight Test Data by Utilizing Maximum Likelihood Estimation written by Russell V. Parrish and published by . This book was released on 1972 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1982 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA's Contributions to Aeronautics: Flight environment, operations, flight testing, and research by :
Download or read book NASA's Contributions to Aeronautics: Flight environment, operations, flight testing, and research written by and published by . This book was released on 2010 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.
Book Synopsis NASA Technical Paper by : United States. National Aeronautics and Space Administration
Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1979 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1971 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Download or read book NASA Technical Note written by and published by . This book was released on 1976 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA's Contributions to Aeronautics, Volume 2, Flight Environment ..., NASA/SP-2010-570-Vol 2, 2010, * by :
Download or read book NASA's Contributions to Aeronautics, Volume 2, Flight Environment ..., NASA/SP-2010-570-Vol 2, 2010, * written by and published by . This book was released on 2011 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Extraction of Aerodynamic Parameters for Aircraft at Extreme Flight Conditions by :
Download or read book Extraction of Aerodynamic Parameters for Aircraft at Extreme Flight Conditions written by and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The maximum likelihood estimator has been used to extract stability and control derivatives from flight data for many years. This paper briefly discusses the maximum likelihood estimator and the aircraft equations of motion that the estimator uses. The current strength and limitations associated with obtaining flight-determined aerodynamic coefficients in extreme flight conditions is assessed. The importance of the careful combining of wind tunnel results (or calculations) and flight results and the thorough evaluation of the mathematical model is emphasized. The basic concepts of minimization and estimation are examined for a simple computed aircraft example, and the cost functions that are to be minimized during estimation are defined and discussed. Graphic representations of the cost functions are given to help illustrate the minimization process.
