On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics

On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics PDF Author: Murray Tobak
Publisher:
ISBN:
Category : Nonlinear functional analysis
Languages : en
Pages : 76

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Book Description
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.

On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics

On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics PDF Author: Murray Tobak
Publisher:
ISBN:
Category : Nonlinear functional analysis
Languages : en
Pages : 76

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Book Description
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.

Mathematical Modeling of the Aerodynamic Characteristics in Flight Dynamics

Mathematical Modeling of the Aerodynamic Characteristics in Flight Dynamics PDF Author: Murray Tobak
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 32

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Book Description


On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics

On the Formulation of the Aerodynamic Characteristics in Aircraft Dynamics PDF Author: Murray Tobak
Publisher:
ISBN:
Category : Nonlinear functional analysis
Languages : en
Pages : 76

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Book Description
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.

Flight Stability and Automatic Control

Flight Stability and Automatic Control PDF Author: Robert C. Nelson
Publisher:
ISBN:
Category : History
Languages : en
Pages : 464

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Book Description
This edition of this this flight stability and controls guide features an unintimidating math level, full coverage of terminology, and expanded discussions of classical to modern control theory and autopilot designs. Extensive examples, problems, and historical notes, make this concise book a vital addition to the engineer's library.

Introduction to Aircraft Flight Mechanics

Introduction to Aircraft Flight Mechanics PDF Author: Thomas R. Yechout
Publisher: AIAA
ISBN: 9781600860782
Category : Aerodynamics
Languages : en
Pages : 666

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Book Description
Based on a 15-year successful approach to teaching aircraft flight mechanics at the US Air Force Academy, this text explains the concepts and derivations of equations for aircraft flight mechanics. It covers aircraft performance, static stability, aircraft dynamics stability and feedback control.

Aerodynamic Design of Transport Aircraft

Aerodynamic Design of Transport Aircraft PDF Author: E. Obert
Publisher: IOS Press
ISBN: 1607504073
Category : Science
Languages : en
Pages : 656

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Book Description
The origin of Aerodynamic Design of Transport Aircraft stems from the time when the author was appointed part-time professor in the Aerospace Faculty of Delft University of Technology. At the time his main activities were those of leading the departments of Aerodynamics, Performance and Preliminary Design at Fokker Aircraft Company. The groundwork for this book started in 1987 as a series of lecture notes consisting mainly of pictorial material with a minimum of English explanatory text. After the demise of Fokker in 1996 one feared that interest in aeronautical engineering would strongly diminish. As a result of this, the course was discontinued and the relationship between the author and the faculty came to an end. Two years later the situation was reappraised, and the interest in aeronautical engineering remained, so the course was reinstated with a former Fokker colleague Ronald Slingerland as lecturer. The lecture notes from these courses form the foundation of this publication.

Flight Dynamics Principles

Flight Dynamics Principles PDF Author: Michael V. Cook
Publisher: Butterworth-Heinemann
ISBN: 008098276X
Category : Technology & Engineering
Languages : en
Pages : 608

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Book Description
The study of flight dynamics requires a thorough understanding of the theory of the stability and control of aircraft, an appreciation of flight control systems and a grounding in the theory of automatic control. Flight Dynamics Principles is a student focused text and provides easy access to all three topics in an integrated modern systems context. Written for those coming to the subject for the first time, the book provides a secure foundation from which to move on to more advanced topics such as, non-linear flight dynamics, flight simulation, handling qualities and advanced flight control. - Additional examples to illustrate the application of computational procedures using tools such as MATLAB®, MathCad® and Program CC® - Improved compatibility with, and more expansive coverage of the North American notational style - Expanded coverage of lateral-directional static stability, manoeuvrability, command augmentation and flight in turbulence - An additional coursework study on flight control design for an unmanned air vehicle (UAV)

Proceedings of the Berkeley-Ames Conference on Nonlinear Problems in Control and Fluid Dynamics

Proceedings of the Berkeley-Ames Conference on Nonlinear Problems in Control and Fluid Dynamics PDF Author: Louis R. Hunt
Publisher:
ISBN: 9780915692378
Category : Science
Languages : en
Pages : 466

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Book Description


Computational Aerodynamic Modeling of Aerospace Vehicles

Computational Aerodynamic Modeling of Aerospace Vehicles PDF Author: Mehdi Ghoreyshi
Publisher: MDPI
ISBN: 3038976105
Category : Technology & Engineering
Languages : en
Pages : 294

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Book Description
Currently, the use of computational fluid dynamics (CFD) solutions is considered as the state-of-the-art in the modeling of unsteady nonlinear flow physics and offers an early and improved understanding of air vehicle aerodynamics and stability and control characteristics. This Special Issue covers recent computational efforts on simulation of aerospace vehicles including fighter aircraft, rotorcraft, propeller driven vehicles, unmanned vehicle, projectiles, and air drop configurations. The complex flow physics of these configurations pose significant challenges in CFD modeling. Some of these challenges include prediction of vortical flows and shock waves, rapid maneuvering aircraft with fast moving control surfaces, and interactions between propellers and wing, fluid and structure, boundary layer and shock waves. Additional topic of interest in this Special Issue is the use of CFD tools in aircraft design and flight mechanics. The problem with these applications is the computational cost involved, particularly if this is viewed as a brute-force calculation of vehicle’s aerodynamics through its flight envelope. To make progress in routinely using of CFD in aircraft design, methods based on sampling, model updating and system identification should be considered.

Performance, Stability, Dynamics, and Control of Airplanes

Performance, Stability, Dynamics, and Control of Airplanes PDF Author: Bandu N. Pamadi
Publisher: AIAA
ISBN: 9781600860997
Category : Aerodynamics
Languages : en
Pages : 810

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Book Description