Download or read book Measurements of Wing and Fin Buffeting on the Standard Dynamics Model written by S. J. Zan and published by Institute for Aerospace Research. This book was released on 1993 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Wing and Fin Buffeting on the Standard Dynamic Model written by S. J. Zan and published by . This book was released on 1993 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Wing and Fin Buffeting on the Standard Dynamics Model written by S. J. Zan and published by . This book was released on 1993 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wing and FIN Buffet on the Standard Dynamics Model written by X. Z. Huang and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: For modern aircraft with higher sweep angles flying at higher incidence, unsteady and burst vortex flow in the vicinity of the wing and downstream lifting surface lead to strong unsteady airloads and buffeting'. Thus, investigations were conducted in the Institute for Aerospace Research (lAR) Low Speed Wind Tunnel (LSWT)2 to study the buffet characteristics of the Standard Dynamics Model (SDM)3, a generic fighter aircraft configuration. Since the spectrum of the aerodynamic input load is reasonably flat over the frequency range of interest, the solution to the equation of the motion is easily solved in the frequency domain for a given aerodynamic loads and vice versa. Following Jones4 and Mabey3, it is suggested that 4mG(n) is the best parameter to use as a measure of buffet excitation due to flow separations and unsteadiness and to denote this as the buffet excitation parameter.
Download or read book Measurements of Wing and Fin Buffetting on the Standard Dynamics Model written by S. J. Zan and published by . This book was released on 1993 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 12th AIAA Applied Aerodynamics Conference written by and published by . This book was released on 1993 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Note written by and published by . This book was released on 1993 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Measurements of Buffeting on an Aeroelastic Model of a Slender Wing Aircraft written by Dennis George Mabey and published by . This book was released on 1978 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Buffeting tests were made on an aeroelastic model of a slender wing aircraft at Mach numbers of 0.2 and 0.3 and at low densities, over an angle of incidence range from 0 to 24 deg. In general the wing-root strains resembled those measured previously on an ordinary wind-tunnel model with almost the same shape. The total damping in the first and third symmetric modes was derived from tape records of the wing-root strain signal. For both modes the total damping was almost independent of the angle of incidence, even in the region of vortex breakdown. For the first mode the measured aerodynamic damping was reasonably predicted by assuming that the model was a slender delta wing with attached flow. (Author).
Download or read book Fin Buffeting at High Angles of Incidence on a Model of a Slender Wing Aircraft written by D. G. Mabey and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Enginnering A Cumulative Index to a Continuing Bibliography supplement 312 written by and published by . This book was released on 1994 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Measurements of Wing Buffeting on a Flutter Model of a Typical Strike Aircraft written by D. G. Mabey and published by . This book was released on 1982 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some measurements of buffeting were made on a 1/30 scale complete flutter model of the wing of a typical strike aircraft. The tests covered the Mach number range from M = 0.45 to 0.94 and the Reynolds number range from R = 0.6 x 10 to the 6th power to 1.7 x 10 to the 6th power. With a clean wing, buffeting measurements were made over a wide range of Reynolds number at constant Mach number to derive the buffet excitation parameter at the wing fundamental bending frequency of 170 Hz. The complete flutter model had a rigid body freedom of rotation in roll at a frequency of about 39 Hz, and indicated the onset of 'wing rock', well above the buffet onset boundary. The wing rock started close to the maximum limit of buffet penetration achieved in flight. Significant variations in aerodynamic damping were measured with flow separations for both the low frequency roll mode and the higher frequency first wing bending mode. For the roll mode these variatons may be predicted by quasi-steady strip theory, but not for the fundamental bending mode. This difference indicates an important frequency effect on the separated flows, particularly at subsonic speeds. These tests indicate some limitations of buffeting measurements on ordinary wind tunnel models, particularly for half models. (Author).
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Browsing Science Research at the Federal Level in Canada written by Brian B. Wilks and published by University of Toronto Press. This book was released on 2004-01-01 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wilks provides a historical background, list of publications, and description of activities for most of the major science initiatives undertaken at the federal level. He surveys a wide range of government documents and monographic and serial science collections used by both faculty and students.
Download or read book 32nd Aerospace Sciences Meeting Exhibit 94 0145 94 0179 written by and published by . This book was released on 1994 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Fin Buffeting on an F 18 Model and a Derived Interpretative Hypothesis written by D. G. Mabey and published by . This book was released on 1991 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
