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Analysis Of Wind Tunnel Oscillatory Data Of The X 31a Aircraft Nasa Cr 1999 208725 Mar 1 1999
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Book Synopsis ANALYSIS OF WIND TUNNEL OSCILLATORY DATA OF THE X-31A AIRCRAFT... NASA/CR-1999-208725... MAR. 1, 1999 by : United States. National Aeronautics and Space Administration
Download or read book ANALYSIS OF WIND TUNNEL OSCILLATORY DATA OF THE X-31A AIRCRAFT... NASA/CR-1999-208725... MAR. 1, 1999 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781723776687 Total Pages :128 pages Book Rating :4.7/5 (766 download)
Book Synopsis Analysis of Wind Tunnel Oscillatory Data of the X-31a Aircraft by : National Aeronautics and Space Adm Nasa
Download or read book Analysis of Wind Tunnel Oscillatory Data of the X-31a Aircraft written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-17 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind tunnel oscillatory tests in pitch, roll, and yaw were performed on a 19%-scale model of the X-31A aircraft. These tests were used to study the aerodynamic characteristics of the X-31A in response to harmonic oscillations at six frequencies. In-phase and out-of-phase components of the aerodynamic coefficients were obtained over a range of angles of attack from 0 to 90 deg. To account for the effect of frequency on the data, mathematical models with unsteady terms were formulated by use of two different indicial functions. Data from a reduced set of frequencies were used to estimate model parameters, including steady-state static and dynamic stability derivatives. Both models showed good prediction capability and the ability to accurately fit the measured data. Estimated static stability derivatives compared well with those obtained from static wind tunnel tests. The roll and yaw rate derivative estimates were compared with rotary-balanced wind tunnel data and theoretical predictions. The estimates and theoretical predictions were in agreement at small angles of attack. The rotary-balance data showed, in general, acceptable agreement with the steady-state derivative estimates. Smith, Mark S. Langley Research Center NCC1-24; RTOP 522-25-21-07
Book Synopsis Analysis of Wind Tunnel Oscillatory Data of the X-31A Aircraft by : Mark S. Smith
Download or read book Analysis of Wind Tunnel Oscillatory Data of the X-31A Aircraft written by Mark S. Smith and published by . This book was released on 1999 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16XL Aircraft by :
Download or read book Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16XL Aircraft written by and published by . This book was released on 1997 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721142163 Total Pages :114 pages Book Rating :4.1/5 (421 download)
Book Synopsis Analysis of Wind Tunnel Lateral Oscillatory Data of the F-16xl Aircraft by : National Aeronautics and Space Administration (NASA)
Download or read book Analysis of Wind Tunnel Lateral Oscillatory Data of the F-16xl Aircraft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Static and dynamic wind tunnel tests were performed on an 18% scale model of the F-16XL aircraft. These tests were performed over a wide range of angles of attack and sideslip with oscillation amplitudes from 5 deg. to 30 deg. and reduced frequencies from 0.073 to 0.269. Harmonic analysis was used to estimate Fourier coefficients and in-phase and out-of-phase components. For frequency dependent data from rolling oscillations, a two-step regression method was used to obtain unsteady models (indicial functions), and derivatives due to sideslip angle, roll rate and yaw rate from in-phase and out-of-phase components. Frequency dependence was found for angles of attack between 20 deg. and 50 deg. Reduced values of coefficient of determination and increased values of fit error were found for angles of attack between 35 deg. and 45 deg. An attempt to estimate model parameters from yaw oscillations failed, probably due to the low number of test cases at different frequencies. Klein, Vladislav and Murphy, Patrick C. and Szyba, Nathan M. Langley Research Center 23-762-45-DB
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722237172 Total Pages :68 pages Book Rating :4.2/5 (371 download)
Book Synopsis Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16xl Aircraft by : National Aeronautics and Space Administration (NASA)
Download or read book Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16xl Aircraft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-06 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Static and oscillatory wind tunnel data are presented for a 10-percent-scale model of an F-16XL aircraft. Static data include the effect of angle of attack, sideslip angle, and control surface deflections on aerodynamic coefficients. Dynamic data from small-amplitude oscillatory tests are presented at nominal values of angle of attack between 20 and 60 degrees. Model oscillations were performed at five frequencies from 0.6 to 2.9 Hz and one amplitude of 5 degrees. A simple harmonic analysis of the oscillatory data provided Fourier coefficients associated with the in-phase and out-of-phase components of the aerodynamic coefficients. A strong dependence of the oscillatory data on frequency led to the development of models with unsteady terms in the form of indicial functions. Two models expressing the variation of the in-phase and out-of-phase components with angle of attack and frequency were proposed and their parameters estimated from measured data. Klein, Vladislav and Murphy, Patrick C. and Curry, Timothy J. and Brandon, Jay M. Langley Research Center...
Book Synopsis ANALYSIS OF WIND TUNNEL LONGITUDINAL STATIC AND OSCILLATORY DATA OF THE F-16XL AIRCRAFT... NASA/TM-97-206276... FEB. 25, 1998 by : United States. National Aeronautics and Space Administration
Download or read book ANALYSIS OF WIND TUNNEL LONGITUDINAL STATIC AND OSCILLATORY DATA OF THE F-16XL AIRCRAFT... NASA/TM-97-206276... FEB. 25, 1998 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16XL Aircraft by : Vladislav Klein
Download or read book Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16XL Aircraft written by Vladislav Klein and published by . This book was released on 1997 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wind Tunnel/flight Data Correlation (u). by : James A. Behal
Download or read book Wind Tunnel/flight Data Correlation (u). written by James A. Behal and published by . This book was released on 1971 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: A program was conducted to obtain data, both steady state and dynamic, from wind tunnel models and full scale flight tests of the RA-5C aircraft. Data were acquired on 0.228 and 0. 125 scale RA-5C inlet models and on a fully instrumented flight test RA-5C aircraft. Interim data reports presenting the data acquired during each test have been published. These data were utilized in this report to develop scaling techniques for correlating small scale model wind tunnel data with full scale flight data. Data presented include duct steady state operating characteristics and pressure distributions in the inlet and at the engine face. Dynamic data are presented in the form of engine face turbulence contour plots, radial turbulence distributions and selected spectral data functions. Data are presented for variations of angle of attack, angle of yaw, Reynolds number, ramp angle, secondary flow rates and inlet diverter width. Brief descriptions of the model and test methods are also presented.
Book Synopsis High-speed Wind Tunnels by : Luigi Crocco
Download or read book High-speed Wind Tunnels written by Luigi Crocco and published by . This book was released on 1946 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance assumed in recent times by experimental supersonic wind tunnels, as well as the power required, has brought about the need for a study which would permit a comparison of the types tested and the principal theoretical plans.
Book Synopsis Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16XL Aircraft by : Vladislav Klein
Download or read book Analysis of Wind Tunnel Longitudinal Static and Oscillatory Data of the F-16XL Aircraft written by Vladislav Klein and published by . This book was released on 1997 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781723853821 Total Pages :68 pages Book Rating :4.8/5 (538 download)
Book Synopsis Investigation of a Technique for Measuring Dynamic Ground Effect in a Subsonic Wind Tunnel by : National Aeronautics and Space Adm Nasa
Download or read book Investigation of a Technique for Measuring Dynamic Ground Effect in a Subsonic Wind Tunnel written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-20 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: To better understand the ground effect encountered by slender wing supersonic transport aircraft, a test was conducted at NASA Langley Research Center's 14 x 22 foot Subsonic Wind Tunnel in October, 1997. Emphasis was placed on improving the accuracy of the ground effect data by using a "dynamic" technique in which the model's vertical motion was varied automatically during wind-on testing. This report describes and evaluates different aspects of the dynamic method utilized for obtaining ground effect data in this test. The method for acquiring and processing time data from a dynamic ground effect wind tunnel test is outlined with details of the overall data acquisition system and software used for the data analysis. The removal of inertial loads due to sting motion and the support dynamics in the balance force and moment data measurements of the aerodynamic forces on the model is described. An evaluation of the results identifies problem areas providing recommendations for future experiments. Test results are validated by comparing test data for an elliptical wing planform with an Elliptical wing planform section with a NACA 0012 airfoil to results found in current literature. Major aerodynamic forces acting on the model in terms of lift curves for determining ground effect are presented. Comparisons of flight and wind tunnel data for the TU-144 are presented.Graves, Sharon S.Langley Research CenterGROUND EFFECT (AERODYNAMICS); AERODYNAMIC FORCES; SUBSONIC WIND TUNNELS; WIND TUNNEL TESTS; DATA ACQUISITION; AIRCRAFT DESIGN; AERODYNAMIC CONFIGURATIONS; AIRCRAFT CONFIGURATIONS; SLENDER WINGS; WING PLANFORMS; SUPERSONIC TRANSPORTS; TU-144 AIRCRAFT; VERTICAL MOTION
Book Synopsis Assessment of Wind Tunnel Data Uncertainty by :
Download or read book Assessment of Wind Tunnel Data Uncertainty written by and published by . This book was released on 1995 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium Publisher : ISBN 13 : Total Pages :452 pages Book Rating :4.E/5 ( download)
Book Synopsis Aerodynamics of Wind Tunnel Circuits and Their Components by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium
Download or read book Aerodynamics of Wind Tunnel Circuits and Their Components written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium and published by . This book was released on 1997 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
