A Wind Tunnel Evaluation Of Analytical Techniques For Predicting Static Stability And Control Characteristics Of Flexible Aircraft

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A Wind-tunnel Evaluation of Analytical Techniques for Predicting Static Stability and Control Characteristics of Flexible Aircraft

Irving Abel
A Wind tunnel Evaluation of Analytical Techniques for Predicting Static Stability and Control Characteristics of Flexible Aircraft Book PDF

Author : Irving Abel
Publisher : Unknown
Page : 76 pages
File Size : 51,6 Mb
Release : 1972
Category : Airplanes
ISBN : UIUC:30112106882969

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A Wind-tunnel Evaluation of Analytical Techniques for Predicting Static Stability and Control Characteristics of Flexible Aircraft by Irving Abel Pdf

An experimental evaluation of analytical techniques for predicting certain stability and control characteristics of a large flexible aircraft is presented. Analytical methods based on both the model approach and flexibility influence coefficients are developed to predict the aerodynamic characteristics of a flexible airplane. These methods are then applied to a flexibly scaled model of a supersonic transport configuration. Comparisons of wind-tunnel data, calculations based on the model approach, and flexibility influence coefficients are presented over the Mach number range from 0.6 to 2.7. An examination of the results obtained from this study indicates that both analytical techniques predict reasonably well the effect of flexibility on the basic longitudinal characteristics and that both techniques give generally comparable results.

NASA Technical Note

Anonim
NASA Technical Note Book PDF

Author : Anonim
Publisher : Unknown
Page : 542 pages
File Size : 40,6 Mb
Release : 1974
Category : Electronic
ISBN : MINN:31951000846487L

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NASA Technical Note by Anonim Pdf

Applied Mechanics Reviews

Anonim
Applied Mechanics Reviews Book PDF

Author : Anonim
Publisher : Unknown
Page : 542 pages
File Size : 43,6 Mb
Release : 1972
Category : Mechanics, Applied
ISBN : UCAL:C2682437

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Applied Mechanics Reviews by Anonim Pdf

Development and Demonstration of a Flutter-suppression System Using Active Controls

Maynard C. Sandford,Irving Abel,David Lewis Gray
Development and Demonstration of a Flutter suppression System Using Active Controls Book PDF

Author : Maynard C. Sandford,Irving Abel,David Lewis Gray
Publisher : Unknown
Page : 76 pages
File Size : 49,8 Mb
Release : 1975
Category : Airplanes
ISBN : NASA:31769000424641

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Development and Demonstration of a Flutter-suppression System Using Active Controls by Maynard C. Sandford,Irving Abel,David Lewis Gray Pdf

The application of active control technology to suppress flutter has been demonstrated successfully in the Langley transonic dynamics tunnel with a delta-wing model. The model was a simplified version of a proposed supersonic transport wing design. An active flutter-suppression method based on an aerodynamic energy criterion has been verified by using three different control laws. The first two control laws utilized both leading-edge and trailing-edge active control surfaces, whereas the third control law required only a single trailing-edge active control surface. At a Mach number of 0.9 the experimental results demonstrated increases in the flutter dynamic pressure from 12.5 percent to 30 percent with active controls. Analytical methods were developed to predict both open-loop and closed-loop stability, and the results agreed reasonably well with the experimental results.

Hearings, Reports and Prints of the House Committee on Science and Astronautics

United States. Congress. House. Committee on Science and Astronautics
Hearings Reports and Prints of the House Committee on Science and Astronautics Book PDF

Author : United States. Congress. House. Committee on Science and Astronautics
Publisher : Unknown
Page : 1222 pages
File Size : 52,8 Mb
Release : 1971
Category : Astronautics
ISBN : UCAL:B3606079

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Hearings, Reports and Prints of the House Committee on Science and Astronautics by United States. Congress. House. Committee on Science and Astronautics Pdf

1972 NASA Authorization

United States. Congress. House. Committee on Science and Astronautics
1972 NASA Authorization Book PDF

Author : United States. Congress. House. Committee on Science and Astronautics
Publisher : Unknown
Page : 342 pages
File Size : 42,5 Mb
Release : 1971
Category : Electronic
ISBN : LOC:00183668286

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1972 NASA Authorization by United States. Congress. House. Committee on Science and Astronautics Pdf

NASA Technical Report

Anonim
NASA Technical Report Book PDF

Author : Anonim
Publisher : Unknown
Page : 868 pages
File Size : 43,9 Mb
Release : 1975
Category : Aerodynamics
ISBN : MINN:31951000846659I

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NASA Technical Report by Anonim Pdf

Monthly Catalog of United States Government Publications, Cumulative Index

United States. Superintendent of Documents
Monthly Catalog of United States Government Publications Cumulative Index Book PDF

Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 1408 pages
File Size : 40,9 Mb
Release : 1976
Category : United States
ISBN : STANFORD:36105021034173

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Monthly Catalog of United States Government Publications, Cumulative Index by United States. Superintendent of Documents Pdf

Airplane Flight Dynamics and Automatic Flight Controls

Jan Roskam
Airplane Flight Dynamics and Automatic Flight Controls Book PDF

Author : Jan Roskam
Publisher : DARcorporation
Page : 430 pages
File Size : 43,5 Mb
Release : 1998
Category : Science
ISBN : 1884885187

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Airplane Flight Dynamics and Automatic Flight Controls by Jan Roskam Pdf

"In this part, exhaustive coverage is provided of the methods for analysis and synthesis of automatic flight control systems using classical control theory. This widely used book has been updated with the latest software methods. Throughout this text, the practical (design) applications of the theory are stressed with many examples and illustrations. Aircraft stability and control characteristics are all heavily regulated by civil as well as by military airworthiness authorities for safety reasons. The role of the these safety regulations in the application of the theory is therefore stressed throughout. Airplane Flight Dynamics & Automatic Flight Controls, Part II, is an essential reference for all aeronautical engineers working in the area of stability and control, regardless of experience levels. The book minimizes reader confusion through a systematic progression of fundamentals: - Elastic airplane stability and control coefficients and derivatives - Method for determining the equilibrium and manufacturing shape of an elastic airplane - Subsonic and supersonic numerical examples of aeroelasticity effects on stability & control derivatives - Bode and root-locus plots with open and closed loop airplane applications, and coverage of inverse applications - Stability augmentation systems: pitch dampers, yaw dampers and roll dampers - Synthesis concepts of automatic flight control modes: control-stick steering, auto-pilot hold, speed control, navigation and automatic landing - Digital control systems using classical control theory applications with Z-transforms - Applications of classical control theory - Human pilot transfer functions." --Descripción del editor.

Research and Technology Program Digest

United States. National Aeronautics and Space Administration
Research and Technology Program Digest Book PDF

Author : United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 792 pages
File Size : 48,6 Mb
Release : 2024-07-02
Category : Electronic
ISBN : STANFORD:36105112109157

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Research and Technology Program Digest by United States. National Aeronautics and Space Administration Pdf