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Analysis Of Wind Tunnel Longitudinal Static And Oscillatory Data Of The F 16xl Aircraft Nasa Tm 97 206276 Feb 25 1998
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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:
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...
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 :9781721075751 Total Pages :126 pages Book Rating :4.0/5 (757 download)
Book Synopsis Analysis of Wind Tunnel Oscillatory Data of the X-31a Aircraft by : National Aeronautics and Space Administration (NASA)
Download or read book Analysis of Wind Tunnel Oscillatory Data of the X-31a Aircraft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-12 with total page 126 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... 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:
Book Synopsis Full-scale Wind-tunnel Investigation of the Longitudinal Aerodynamic Characteristics of the M2-F1 Lifting Body Flight Vehicle by : Kenneth W. Mort
Download or read book Full-scale Wind-tunnel Investigation of the Longitudinal Aerodynamic Characteristics of the M2-F1 Lifting Body Flight Vehicle written by Kenneth W. Mort and published by . This book was released on 1966 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis AERODYNAMIC PARAMETERS OF HIGH PERFORMANCE AIRCRAFT ESTIMATED FROM WIND TUNNEL AND FLIGHT TEST DATA... NASA/TM-1997-207993... DEC. 3, 1998 by : United States. National Aeronautics and Space Administration
Download or read book AERODYNAMIC PARAMETERS OF HIGH PERFORMANCE AIRCRAFT ESTIMATED FROM WIND TUNNEL AND FLIGHT TEST DATA... NASA/TM-1997-207993... DEC. 3, 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 BASELINE CALIBRATION OF THE NASA LEWIS RESEARCH CENTER 8-BY 6-FOOT SUPERSONIC WIND TUNNEL (1991 AND 1992 TESTS)... NASA/TM-97-107431... AUG. 6, 1998 by : United States. National Aeronautics and Space Administration
Download or read book BASELINE CALIBRATION OF THE NASA LEWIS RESEARCH CENTER 8-BY 6-FOOT SUPERSONIC WIND TUNNEL (1991 AND 1992 TESTS)... NASA/TM-97-107431... AUG. 6, 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:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720604181 Total Pages :66 pages Book Rating :4.6/5 (41 download)
Book Synopsis Investigation of a Technique for Measuring Dynamic Ground Effect in a Subsonic Wind Tunnel by : National Aeronautics and Space Administration (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 Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06 with total page 66 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
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781724695772 Total Pages :436 pages Book Rating :4.6/5 (957 download)
Book Synopsis Transonic Wind Tunnel Test of a 14 Percent Thick Oblique Wing by : National Aeronautics and Space Administration (NASA)
Download or read book Transonic Wind Tunnel Test of a 14 Percent Thick Oblique Wing written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-04 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted at the ARC 11- by 11-Foot Transonic Wind Tunnel as part of the Oblique Wing Research Aircraft Program to study the aerodynamic performance and stability characteristics of a 0.087-scale model of an F-8 airplane fitted with an oblique wing designed by Rockwell International. The 10.3 aspect ratio, straight-tapered wing of 0.14 thickness/chord ratio was tested at two different mounting heights above the fuselage. Additional tests were conducted to assess low-speed behavior with and without flaps, aileron effectiveness at representative flight conditions, and transonic drag divergence with 0 degree wing sweep. Longitudinal stability data were obtained at sweep angles of 0, 30, 45, 60, and 65 degrees, at Mach numbers ranging from 0.25 to 1.40. Test Reynolds numbers varied from 3.2 to 6.6 x 10 exp 6/ft. and angle of attack ranged from -5 to +18 degrees. Most data were taken at zero sideslip, but a few runs were at sideslip angles of +/- 5 degrees. The raised wing position proved detrimental overall, although side force and yawing moment were reduced at some conditions. Maximum lift coefficient with the flaps deflected was found to fall short of the value predicted in the preliminary design document. The performance and trim characteristics of the present wing are generally inferior to those obtained for a previously tested wing designed at ARC. Kennelly, Robert A., Jr. and Kroo, Ilan M. and Strong, James M. and Carmichael, Ralph L. Ames Research Center NASA-TM-102230, A-89236, NAS 1.15:102230 RTOP 533-06-01...
Book Synopsis Full-scale Wind-tunnel Investigation of the Static Longitudinal and Lateral Characteristics of a Light Single-engine Airplane by : Marvin P. Fink
Download or read book Full-scale Wind-tunnel Investigation of the Static Longitudinal and Lateral Characteristics of a Light Single-engine Airplane written by Marvin P. Fink and published by . This book was released on 1970 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 :
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:
Book Synopsis On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics by : Murray Tobak
Download or read book On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics written by Murray Tobak and published by . This book was released on 1976 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory of functionals is used to reformulate the notions of aerodynamic indicial functions and superposition. Integral forms for the aerodynamic response to arbitrary motions are derived that are free of dependence on a linearity assumption. Simplifications of the integral forms lead to practicable nonlinear generalizations of the linear superposition and the stability derivative formulations. Applied to arbitrary nonplanar motions, the generalization yields a form for the aerodynamic response that can be compounded of the contributions from a limited number of well-defined characteristic motions, in principle reproducible in the wind tunnel. Further generalizations that would enable the consideration of random fluctuations and multivalued aerodynamic responses are indicated.
Book Synopsis Aircraft System Identification by : Eugene Morelli
Download or read book Aircraft System Identification written by Eugene Morelli and published by Sunflyte Enterprises. This book was released on 2016 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of both the theoretical underpinnings and the practical application of aircraft modeling based on experimental data also known as aircraft system identification. Much of the material presented comes from the authors own extensive research and teaching activities at the NASA Langley Research Center, and is based on real-world applications of system identification to aircraft. The book uses actual flight-test and wind-tunnel data for case studies and examples, and is a valuable resource for researchers and practicing engineers, as well as a textbook for postgraduate and senior-level courses. [...] The methods and algorithms explained in the book are implemented in a NASA software toolbox called SIDPAC (System IDentification Programs for AirCraft). SIDPAC is written in MATLAB®, and is available by request from NASA Langley Research Center. SIDPAC is composed of many different tools that implement a wide variety of approaches explained fully in the book. These tools can be readily applied to solve aircraft system identification problems.
Author :American Institute of Aeronautics and Astronautics Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :838 pages Book Rating :4.3/5 (91 download)
Book Synopsis Atmospheric Flight Mechanics Conference Held August, 1997 at New Orleans, Louisiana by : American Institute of Aeronautics and Astronautics
Download or read book Atmospheric Flight Mechanics Conference Held August, 1997 at New Orleans, Louisiana written by American Institute of Aeronautics and Astronautics and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1997 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the proceedings of the Atmospheric Flight Mechanics Conference, which took place in New Orleans, August 1997. It focuses on the technical progress, issues and challenges associated with atmospheric flight. Technical papers address stability and control, flying qualities (including one session dedicated to pilot-induced oscillations), unsteady and vortex aerodynamics, system and parameter identification, aircraft flight dynamic re-entry and aero assist technologies, and reusable launch vehicles.
Book Synopsis Unsteady Transonic Flow by : Mårten T. Landahl
Download or read book Unsteady Transonic Flow written by Mårten T. Landahl and published by Courier Dover Publications. This book was released on 2019-04-17 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic monograph on unsteady transonic flow — the flow of air encountered at speeds at or near the speed of sound — is of continuing interest to students and professionals in aerodynamics, fluid dynamics, and other areas of applied mathematics. After a brief Introduction, Swedish physicist Mårten T. Landahl presents a chapter in which the two-dimensional solution is derived, succeeded by a discussion of its relation to the subsonic and supersonic solutions. Three chapters on low aspect ratio configurations follow, covering triangular wings and similar planforms with curved leading edges, rectangular wings, and cropped delta wings, and low aspect ratio wing-body combinations. The treatment concludes with a consideration of the experimental determination of air forces on oscillating wings at transonic speeds.
Book Synopsis Simulator Study of Stall/post-stall Characteristics of a Fighter Airplane with Relaxed Longitudinal Static Stability by :
Download or read book Simulator Study of Stall/post-stall Characteristics of a Fighter Airplane with Relaxed Longitudinal Static Stability written by and published by . This book was released on 1979 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
