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A Generic Nonlinear Aeroelastic Method With Semi Empirical Nonlinear Unsteady Aerodynamics
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Book Synopsis A Generic Nonlinear Aeroelastic Method with Semi-empirical Nonlinear Unsteady Aerodynamics by : Atlee M. Cunningham
Download or read book A Generic Nonlinear Aeroelastic Method with Semi-empirical Nonlinear Unsteady Aerodynamics written by Atlee M. Cunningham and published by . This book was released on 1999 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid-structure interactions (FSI) that involve nonlinear aerodynamic forces are described which affect both aging aircraft, as well as new aircraft. Several cases are presented which contain aerodynamic non linearities that are important in the FSI process and that require different solution approaches from those taken for linear FSI problems. A time-dependent approach is presented which is based on a semi empirical nonlinear aerodynamic model that is fully coupled with the aircraft elastic equations of motion. An early version of this methodology is applied to a wide variety of Limit Cycle Oscillation (LCO) cases for a fighter configuration carrying large underwing stores. The new method is applied to three classes of problems: (1) LCO for bomber and transport type configurations; (2) LCO for a fighter wing; and (3) large amplitude buffet response of a fin subject to server wake turbulence.
Book Synopsis A Generic Nonlinear Aeroelastic Method with Semi-empirical Nonlinear Unsteady Aerodynamics by : Atlee M. Cunningham
Download or read book A Generic Nonlinear Aeroelastic Method with Semi-empirical Nonlinear Unsteady Aerodynamics written by Atlee M. Cunningham and published by . This book was released on 1999 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid-structure interactions (FSI) that involve nonlinear aerodynamic forces are described which affect both aging aircraft, as well as new aircraft. Several cases are presented which contain aerodynamic non linearities that are important in the FSI process and that require different solution approaches from those taken for linear FSI problems. A time-dependent approach is presented which is based on a semi empirical nonlinear aerodynamic model that is fully coupled with the aircraft elastic equations of motion. An early version of this methodology is applied to a wide variety of Limit Cycle Oscillation (LCO) cases for a fighter configuration carrying large underwing stores. The new method is applied to three classes of problems: (1) LCO for bomber and transport type configurations; (2) LCO for a fighter wing; and (3) large amplitude buffet response of a fin subject to server wake turbulence.
Book Synopsis Introduction to Nonlinear Aeroelasticity by : Grigorios Dimitriadis
Download or read book Introduction to Nonlinear Aeroelasticity written by Grigorios Dimitriadis and published by John Wiley & Sons. This book was released on 2017-03-10 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Nonlinear Aeroelasticity Introduces the latest developments and technologies in the area of nonlinear aeroelasticity Nonlinear aeroelasticity has become an increasingly popular research area in recent years. There have been many driving forces behind this development, increasingly flexible structures, nonlinear control laws, materials with nonlinear characteristics and so on. Introduction to Nonlinear Aeroelasticity covers the theoretical basics in nonlinear aeroelasticity and applies the theory to practical problems. As nonlinear aeroelasticity is a combined topic, necessitating expertise from different areas, the book introduces methodologies from a variety of disciplines such as nonlinear dynamics, bifurcation analysis, unsteady aerodynamics, non-smooth systems and others. The emphasis throughout is on the practical application of the theories and methods, so as to enable the reader to apply their newly acquired knowledge Key features: Covers the major topics in nonlinear aeroelasticity, from the galloping of cables to supersonic panel flutter Discusses nonlinear dynamics, bifurcation analysis, numerical continuation, unsteady aerodynamics and non-smooth systems Considers the practical application of the theories and methods Covers nonlinear dynamics, bifurcation analysis and numerical methods Accompanied by a website hosting Matlab code Introduction to Nonlinear Aeroelasticity is a comprehensive reference for researchers and workers in industry and is also a useful introduction to the subject for graduate and undergraduate students across engineering disciplines.
Book Synopsis A Modern Course in Aeroelasticity by : Earl H. Dowell
Download or read book A Modern Course in Aeroelasticity written by Earl H. Dowell and published by Springer Nature. This book was released on 2021-10-16 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the sixth edition. It is suitable for one or more courses at the advanced undergraduate level and graduate level to cover the field of aeroelasticity. It is also of value to the research scholar and engineering practitioner who wish to understand the state of the art in the field. This book covers the basics of aeroelasticity or the dynamics of fluid–structure interaction. While the field began in response to the rapid development of aviation, it has now expanded into many branches of engineering and scientific disciplines and treats physical phenomena from aerospace engineering, bioengineering, civil engineering, and mechanical engineering in addition to drawing the attention of mathematicians and physicists. The basic questions addressed are dynamic stability and response of fluid structural systems as revealed by both linear and nonlinear mathematical models and correlation with experiment. The use of scaled models and full-scale experiments and tests play a key role where theory is not considered sufficiently reliable.
Book Synopsis Studies in Nonlinear Aeroelasticity by : Earl H. Dowell
Download or read book Studies in Nonlinear Aeroelasticity written by Earl H. Dowell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: The great bulk of the literature on aeroelasticity is devoted to linear models. The oretical work relies heavily on linear mathematical concepts, and experimental results are commonly interpreted by assuming that the physical model behaves in a linear manner. Nevertheless, significant work has been done in nonlinear aero elasticity, and one may expect this trend to accelerate for several reasons: our ability to compute has increased at an astonishing rate; as linear concepts have been assimilated widely, there is a natural increase in interest in the foundations of nonlinear modeling; and, finally, some phenomena long recognized to be of interest, but beyond the effective range of linear models, are now known to be essentially nonlinear in nature. In this volume, an exhaustive review of the literature is not attempted. Rather the emphasis is on fundamental ideas and a representative selection of problems. Despite obvious successes in research on problems of aeroelasticity and the existence of a broad literature, including a number of excellent monographs, up to now little attention has been devoted to a general nonlinear theory of interac tion. For the most part nonlinearity has been considered either solely in the description of the behavior of a shell or in the description of the motion of a gas.
Book Synopsis IUTAM Symposium on Integrated Modeling of Fully Coupled Fluid Structure Interactions Using Analysis, Computations and Experiments by : Haym Benaroya
Download or read book IUTAM Symposium on Integrated Modeling of Fully Coupled Fluid Structure Interactions Using Analysis, Computations and Experiments written by Haym Benaroya and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This plenary paper and the accompanying presentation have highlighted field problems involving fluid-structure interaction over a wide span of Navy operations. Considering the vast size and versatility of the Navy's inventory, the cases presented represent examples of a much larger problem. But even this limited set provides sufficient evidence that fluid-structure interaction does hinder the Navy's ability to accomplish its missions. This survey has also established that there are no accurate and generally applicable design tools for addressing these problems. In the majority of cases the state-of-practice is to either make ad-hoc adjustments and estimates based on historical evidence, or conduct expensive focused tests directed at each specific problem and/or candidate solution. Unfortunately, these approaches do not provide insight into the fundamental problem, and neither can be considered reliable regarding their likelihood of success. So the opportunities for applying computational fluid-structure interaction modeling to Navy problems appear limitless. Scenarios range from the "simple" resonant strumming of underwater and in-air cables, to the "self-contained" flow field and vibration of aircraft/ordnance bodies at various Mach numbers, to violent underwater transient detonations and local hull structural collapse. Generally applicable and computationally tractable design-oriented models for these phenomena are of course still far in the future. But the Navy has taken the first steps in that direction by sponsoring specialized numerical models, validation experiments tailored for specific applications, and conferences such as this one.
Book Synopsis Dynamics of Very High Dimensional Systems by : E. H. Dowell
Download or read book Dynamics of Very High Dimensional Systems written by E. H. Dowell and published by World Scientific. This book was released on 2003 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many books on dynamics start with a discussion of systems with one or two degrees of freedom and then turn to the generalization to the case of many degrees of freedom. For linear systems, the concept of eigenfunctions provides a compact and elegant method for decomposing the dynamics of a high dimensional system into a series of independent single-degree-of-freedom dynamical systems. Yet, when the system has a very high dimension, the determination of the eigenfunctions may be a distinct challenge, and when the dynamical system is nonconservative and/or nonlinear, the whole notion of uncoupled eigenmodes requires nontrivial extensions of classical methods. These issues constitute the subject of this book.
Book Synopsis A Collection of Technical Papers by :
Download or read book A Collection of Technical Papers written by and published by . This book was released on 2001 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Unsteady Aerodynamics and Dynamic Aeroelasticity by : Luciano Demasi
Download or read book Introduction to Unsteady Aerodynamics and Dynamic Aeroelasticity written by Luciano Demasi and published by Springer Nature. This book was released on with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis AIAA Journal by : American Institute of Aeronautics and Astronautics
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2002 with total page 1358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Nonlinear Mechanics in Aerospace Engineering by : Satya N. Atluri
Download or read book Computational Nonlinear Mechanics in Aerospace Engineering written by Satya N. Atluri and published by AIAA. This book was released on 1992 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720373377 Total Pages :36 pages Book Rating :4.3/5 (733 download)
Book Synopsis Aeroelastic Response of Nonlinear Wing Section by Functional Series Technique by : National Aeronautics and Space Administration (NASA)
Download or read book Aeroelastic Response of Nonlinear Wing Section by Functional Series Technique written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper addresses the problem of the determination of the subcritical aeroelastic response and flutter instability of nonlinear two-dimensional lifting surfaces in an incompressible flow-field via indicial functions and Volterra series approach. The related aeroelastic governing equations are based upon the inclusion of structural and damping nonlinearities in plunging and pitching, of the linear unsteady aerodynamics and consideration of an arbitrary time-dependent external pressure pulse. Unsteady aeroelastic nonlinear kernels are determined, and based on these, frequency and time histories of the subcritical aeroelastic response are obtained, and in this context the influence of the considered nonlinearities is emphasized. Conclusions and results displaying the implications of the considered effects are supplied.Marzocca, Piergiovanni and Librescu, Liviu and Silva, Walter A.Langley Research CenterAEROELASTICITY; AERODYNAMIC STABILITY; UNSTEADY AERODYNAMICS; TIME DEPENDENCE; PRESSURE PULSES; DYNAMIC RESPONSE; FLUTTER; INCOMPRESSIBLE FLOW; FLOW DISTRIBUTION; NONLINEARITY; WING PANELS
Book Synopsis MAVRIC Flutter Model Transonic Limit Cycle Oscillation Test by :
Download or read book MAVRIC Flutter Model Transonic Limit Cycle Oscillation Test written by and published by . This book was released on 2001 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 40th AIAA Aerospace Sciences Meeting & Exhibit by :
Download or read book 40th AIAA Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 2002 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Modern Course in Aeroelasticity by : E.H. Dowell
Download or read book A Modern Course in Aeroelasticity written by E.H. Dowell and published by Springer. This book was released on 1995 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeroelasticity is the study of flexible structures situated in a flowing fluid. Its modern origins are in the field of aerospace engineering, but it has now expanded to include phenomena arising in other fields such as bioengineering, civil engineering, mechanical engineering and nuclear engineering. The present volume is a teaching text for a first, and possibly second, course in aeroelasticity. It will also be useful as a reference source on the fundamentals of the subject for practitioners. In this third edition, several chapters have been revised and three new chapters added. The latter include a brief introduction to `Experimental Aeroelasticity', an overview of a frontier of research `Nonlinear Aeroelasticity', and the first connected, authoritative account of `Aeroelastic Control' in book form. The authors are drawn from a range of fields including aerospace engineering, civil engineering, mechanical engineering, rotorcraft and turbomachinery. Each author is a leading expert in the subject of his chapter and has many years of experience in consulting, research and teaching.
