Techniques and Facilities for Aeroelastic Modelling

Techniques and Facilities for Aeroelastic Modelling PDF Author: J.A. Payne
Publisher:
ISBN:
Category :
Languages : en
Pages : 20

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Techniques and Facilities for Aeroelastic Modelling

Techniques and Facilities for Aeroelastic Modelling PDF Author: J.A. Payne
Publisher:
ISBN:
Category :
Languages : en
Pages : 20

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Fundamentals of Aeroelasticity

Fundamentals of Aeroelasticity PDF Author: Massimo Gennaretti
Publisher: Springer Nature
ISBN: 3031533798
Category :
Languages : en
Pages : 302

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Aeroservoelasticity

Aeroservoelasticity PDF Author: Ashish Tewari
Publisher: Springer
ISBN: 1493923684
Category : Mathematics
Languages : en
Pages : 323

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Book Description
This monograph presents the state of the art in aeroservoelastic (ASE) modeling and analysis and develops a systematic theoretical and computational framework for use by researchers and practicing engineers. It is the first book to focus on the mathematical modeling of structural dynamics, unsteady aerodynamics, and control systems to evolve a generic procedure to be applied for ASE synthesis. Existing robust, nonlinear, and adaptive control methodology is applied and extended to some interesting ASE problems, such as transonic flutter and buffet, post-stall buffet and maneuvers, and flapping flexible wing. The author derives a general aeroservoelastic plant via the finite-element structural dynamic model, unsteady aerodynamic models for various regimes in the frequency domain, and the associated state-space model by rational function approximations. For more advanced models, the full-potential, Euler, and Navier-Stokes methods for treating transonic and separated flows are also briefly addressed. Essential ASE controller design and analysis techniques are introduced to the reader, and an introduction to robust control-law design methods of LQG/LTR and H2/H∞ synthesis is followed by a brief coverage of nonlinear control techniques of describing functions and Lyapunov functions. Practical and realistic aeroservoelastic application examples derived from actual experiments are included throughout. Aeroservoelasiticity fills an important gap in the aerospace engineering literature and will be a valuable guide for graduate students and advanced researchers in aerospace engineering, as well as professional engineers, technicians, and test pilots in the aircraft industry and laboratories.

A Review of Recent Aeroelastic Analysis Methods for Propulsion at NASA Lewis Research Center

A Review of Recent Aeroelastic Analysis Methods for Propulsion at NASA Lewis Research Center PDF Author: T. S. R. Reddy
Publisher:
ISBN:
Category : Computer programs
Languages : en
Pages : 32

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Principles of Aeroelasticity

Principles of Aeroelasticity PDF Author: Rama B. Bhat
Publisher: CRC Press
ISBN: 1315362368
Category : Science
Languages : en
Pages : 173

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Book Description
Introductory Guide on the Design of Aerospace Structures Developed from a course taught at Concordia University for more than 20 years, Principles of Aeroelasticity utilizes the author’s extensive teaching experience to immerse undergraduate and first-year graduate students into this very specialized subject. Ideal for coursework or self-study, this detailed examination introduces the concepts of aeroelasticity, describes how aircraft lift structures behave when subjected to aerodynamic loads, and finds its application in aerospace, civil, and mechanical engineering. The book begins with a discussion on static behavior, and moves on to static instability and divergence, dynamic behavior leading up to flutter, and fluid structure interaction problems. It covers classical approaches based on low-order aerodynamic models and provides a rationale for adopting certain aeroelastic models. The author describes the formulation of discrete models as well as continuous structural models. He also provides approximate methods for solving divergence, flutter, response and stability of structures, and addresses non-aeroelastic problems in other areas that are similar to aeroelastic problems. Topics covered include: The fundamentals of vibration theory Vibration of single degree of freedom and two degrees of freedom systems Elasticity in the form of an idealized spring element Repetitive motion Flutter phenomenon Classical methods, Rayleigh-Ritz techniques, Galerkin’s technique, influential coefficient methods, and finite element methods Unsteady aerodynamics, and more

Aeroelasticity

Aeroelasticity PDF Author: Raymond L. Bisplinghoff
Publisher: Courier Corporation
ISBN: 0486132439
Category : Technology & Engineering
Languages : en
Pages : 882

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Book Description
Designed as both a textbook for advanced engineering students and a reference book for practicing engineers, this highly regarded work deals not only with the practical aspects of aeroelasticity, but the aerodynamic and structural tools upon which these rest. Accordingly, the book divides roughly into two halves: the first deals with the tools and the second with applications of the tools to aeroelastic phenomena. Topics include deformation of airplane structures under static and dynamic loads, approximate methods of computing natural mode shapes and frequencies, two-and three-dimensional incompressible flow, compressible flow, wings and bodies in three-dimensional unsteady flow, static aeroelastic phenomena, flutter, dynamic response phenomena, aeroelastic model theory, model design and construction, testing techniques and more. Chapters have been designed to progress from easy to difficult so that instructors using this book as an elementary text in aeroelasticity will find their purposes served by simply using the first parts of selected chapters. Helpful appendixes deal with such mathematical tools as matrices and linear systems (prerequisites include the usual engineering mathematics courses and advanced calculus), while many numerical examples are included throughout the text. Engineering students as well as practicing engineers will find this work an unmatched treatment of the topic and an indispensable reference for their libraries.

Technical Report - Jet Propulsion Laboratory, California Institute of Technology

Technical Report - Jet Propulsion Laboratory, California Institute of Technology PDF Author: Jet Propulsion Laboratory (U.S.)
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 726

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NASA Technical Memorandum

NASA Technical Memorandum PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 122

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Research and Technology Program Digest

Research and Technology Program Digest PDF Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 792

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Book Description