Flutter Analysis Of Rectangular Wings Of Very Low Aspect Ratio

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Flutter Analysis of Rectangular Wings of Very Low Aspect Ratio

Robert William Fralich,John M. Hedgepeth
Flutter Analysis of Rectangular Wings of Very Low Aspect Ratio Book PDF

Author : Robert William Fralich,John M. Hedgepeth
Publisher : Unknown
Page : 652 pages
File Size : 45,5 Mb
Release : 1958
Category : Aerofoils
ISBN : STANFORD:36105024832557

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Flutter Analysis of Rectangular Wings of Very Low Aspect Ratio by Robert William Fralich,John M. Hedgepeth Pdf

A flutter analysis, employing slender-body aerodynamic theory and thin-plate theory, is made for rectangular wings of very low aspect ratio with a constant thickness. The spanwise variation of wing deflection is assumed to be given by a parabola, and the chordwise variation is allowed complete freedom. The results show the vsriation of flutter speed and male shape with aspect ratio. Comparisons are made with additional resuits obtained by approximating the chordwise deflection shape by use of parabolic or cubic curves. The analysis shows that the cubic approximation gives good resuits for a ratio of chord to semispan less than 3.

Flutter of a Low-aspect-ratio Rectangular Wing

Stanley R. Cole
Flutter of a Low aspect ratio Rectangular Wing Book PDF

Author : Stanley R. Cole
Publisher : Unknown
Page : 24 pages
File Size : 40,8 Mb
Release : 1989
Category : Electronic
ISBN : NASA:31769000519168

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Flutter of a Low-aspect-ratio Rectangular Wing by Stanley R. Cole Pdf

Technical Note - National Advisory Committee for Aeronautics

United States. National Advisory Committee for Aeronautics
Technical Note National Advisory Committee for Aeronautics Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 966 pages
File Size : 48,6 Mb
Release : 1958
Category : Aeronautics
ISBN : RUTGERS:39030037544675

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Technical Note - National Advisory Committee for Aeronautics by United States. National Advisory Committee for Aeronautics Pdf

Index of NACA Technical Publications

United States. National Advisory Committee for Aeronautics
Index of NACA Technical Publications Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 388 pages
File Size : 53,6 Mb
Release : 1959
Category : Aeronautics
ISBN : UCBK:C029901327

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Index of NACA Technical Publications by United States. National Advisory Committee for Aeronautics Pdf

Applied Mechanics Reviews

Anonim
Applied Mechanics Reviews Book PDF

Author : Anonim
Publisher : Unknown
Page : 742 pages
File Size : 49,8 Mb
Release : 1967
Category : Mechanics, Applied
ISBN : UCAL:C2682426

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Applied Mechanics Reviews by Anonim Pdf

Flutter of a Low-aspect-ratio Rectangular Wing

Stanley R. Cole
Flutter of a Low aspect ratio Rectangular Wing Book PDF

Author : Stanley R. Cole
Publisher : Unknown
Page : 24 pages
File Size : 53,7 Mb
Release : 1989
Category : Airplanes
ISBN : UIUC:30112106724153

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Flutter of a Low-aspect-ratio Rectangular Wing by Stanley R. Cole Pdf

Research Abstracts and Reclassification Notice

United States. National Advisory Committee for Aeronautics
Research Abstracts and Reclassification Notice Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 508 pages
File Size : 51,5 Mb
Release : 1954
Category : Aeronautics
ISBN : IND:30000098603164

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Research Abstracts and Reclassification Notice by United States. National Advisory Committee for Aeronautics Pdf

Effect of Oxygen Content of Furnace Atmosphere on Adherence of Vitreous Coatings on Iron

A. G. Eubanks
Effect of Oxygen Content of Furnace Atmosphere on Adherence of Vitreous Coatings on Iron Book PDF

Author : A. G. Eubanks
Publisher : Unknown
Page : 672 pages
File Size : 46,8 Mb
Release : 1955
Category : Cobalt oxides
ISBN : STANFORD:36105024831757

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Effect of Oxygen Content of Furnace Atmosphere on Adherence of Vitreous Coatings on Iron by A. G. Eubanks Pdf

A series of vitreous coatings of the same basic composition, but with cobalt-oxide contents varying from O to 6.4 percent by weight, fired on ingot iron in atmospheres consisting of various oxygen-nitrogen mixtures. The effect of the oxygen content of the atmosphere on adherence was determined by subjecting each specimen to the American Society for Testing Materials adherence test, and the effect of interface roughness was estimated from examination of metallographic sections.

Flutter at Very High Speeds

Harry L. Runyan
Flutter at Very High Speeds Book PDF

Author : Harry L. Runyan
Publisher : Unknown
Page : 16 pages
File Size : 54,7 Mb
Release : 1957
Category : Aerodynamic heating
ISBN : UOM:39015086466094

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Flutter at Very High Speeds by Harry L. Runyan Pdf

This paper is concerned with a discussion of some of the problems of flutter and aeroelasticity that are or may be important at high speeds. Various theoretical procedures for treating high Mach number flutter are reviewed. Application of two of these methods, namely, the Van Dyke method and piston-theory method, is made to a specific example and compared with linear two- and three-dimensional results. It is shown that the effects of thickness and airfoil shape are destabilizing as compared with linear theory at high Mach number. In order to demonstrate the validity of these large predicted effects, experimental flutter results are shown for two rectangular wings at Mach numbers of 6.86 and 3. The results of nonlinear piston-theory calculations were in good agreement with experiment, whereas the results of using two- and three-dimensional linear theory were not. In addition, some results demonstrating the importance of including camber modes in a flutter analysis are shown, as well as a discussion of one case of flutter due to aerodynamic heating.

Relationship Between Flutter Parameters and Generalized Aerodynamic Forces for Wings of Low Aspect Ratio

Bernard Mazelsky,Harry B. Amey (Jr.)
Relationship Between Flutter Parameters and Generalized Aerodynamic Forces for Wings of Low Aspect Ratio Book PDF

Author : Bernard Mazelsky,Harry B. Amey (Jr.)
Publisher : Unknown
Page : 50 pages
File Size : 47,6 Mb
Release : 1962
Category : Aerodynamics, Hypersonic
ISBN : UOM:39015095331305

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Relationship Between Flutter Parameters and Generalized Aerodynamic Forces for Wings of Low Aspect Ratio by Bernard Mazelsky,Harry B. Amey (Jr.) Pdf

A set of closed-form approximations is derived which relates the flutter conditions of a wing to its generalized aerodynamic forces. A simplified two-mode analysis is used to obtain a firstorder approximation. More general analyses are performed by treating additional effects as perturbations. The derivations are applicable to a wide class of low-aspect-ratio wings and apply to subsonic, transonic, supersonic, and hypersonic flow.

Research Abstracts

United States. National Advisory Committee for Aeronautics
Research Abstracts Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 442 pages
File Size : 44,9 Mb
Release : 2024-06-14
Category : Aeronautics
ISBN : OSU:32435062280326

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Research Abstracts by United States. National Advisory Committee for Aeronautics Pdf