Download or read book Effects of Structural Non linearities on Aircraft Vibration and Flutter written by Elmar J. Breitbach and published by . This book was released on 1978 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Work on flutter prediction has always been based on the modal representation of the structure, which implies a linear model of the aircraft. A number of good results have been obtained, for many prototypes, using this method. Unfortunately, more and more difficulties have appeared during the last few years, both for aircraft carrying large stores and for light aircraft, where non-linear phenomena made it hazardous to use a linear approach. This paper presents a possibility for taking into account some non-linearities of the structure and their effect on flutter. It is considered to be an important milestone in accurate flutter prediction in complicated conditions. (Author).
Download or read book Effects of Structural Non linearities on Aircraft Vibration and Flutter written by E.. Breitbach and published by . This book was released on 1978 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Structural Non Linearities on Aircraft Vibration and Flutter written by and published by . This book was released on 1978 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Work on flutter prediction has always been based on the modal representation of the structure, which implies a linear model of the aircraft. A number of good results have been obtained, for many prototypes, using this method. Unfortunately, more and more difficulties have appeared during the last few years, both for aircraft carrying large stores and for light aircraft, where non-linear phenomena made it hazardous to use a linear approach. This paper presents a possibility for taking into account some non-linearities of the structure and their effect on flutter. It is considered to be an important milestone in accurate flutter prediction in complicated conditions. (Author).
Download or read book Noise and Vibration Control written by Ehsan Noroozinejad Farsangi and published by BoD – Books on Demand. This book was released on 2019-10-02 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a collection of articles on novel approaches to problems of current interest in vibration control by academicians, researchers, and practicing engineers from all over the world. The book is divided into eight chapters and encompasses multidisciplinary areas within the scope of noise and vibration engineering, such as structural dynamics, structural mechanics, finite element modeling, vibration control, and material vibration. Noise and Vibration Control - From Theory to Practice is a useful reference material for all engineering fraternities, including undergraduate and postgraduate students, academicians, researchers, and practicing engineers.
Download or read book Flutter Analysis of an Airplane with Multiple Structural Nonlinearities in the Control System written by Elmar J. Breitbach and published by . This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 2004-02-29 with total page 544 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.
Download or read book Non linear Effects in Aircraft Ground and Flight Vibration Tests written by G. Haidl and published by . This book was released on 1976 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examples of non-linear vibration behaviour in ground resonance tests of an aircraft are shown. Model tests for a simplified system with non-linear properties have been performed, to study the effects of friction and backlash with respect to ground resonance test and flight flutter test. With symmetric and asymmetric non-linear stiffness characteristics effects of amplitude dependent frequencies, mode coupling, mode asymmetries and the consequences in parameter identification in vibration tests are pointed out and discussed. In case of flutter critical modes and problems of apparent damping caused by non-linear system properties are shown and recommendations are given to reach a representative flutter clearance with respect to this non linear system behaviour. (Author).
Download or read book An Introduction to the Problem of Dynamic Structural Damping written by Paolo Santini and published by . This book was released on 1978 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Vibration and Flutter written by Carl Roger Freberg and published by . This book was released on 1944 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book IUTAM Symposium on New Applications of Nonlinear and Chaotic Dynamics in Mechanics written by Francis C. Moon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest research results in the area of applied nonlinear dynamics and chaos theory. Papers by three academic generations address new applications of nonlinear dynamics to mechanics, including fluid-structure interaction, machining and mechanics of solids, and many other applications.
Download or read book Advances in Nonlinear Mechanics in China written by Wenhu Huang and published by CRC Press. This book was released on 2002-01-01 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1990s, significant advances have been made in the research on nonlinear dynamics in China. Many papers were published in Chinese in the Journal of Vibration Engineering, Journal of Nonlinear Dynamics, and Vibration and Shock. This work offers translations of selected articles.
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.
Download or read book The 34th AIAA ASME ASCE AHS ASC Structures Structural Dynamics and Materials Conference Adaptive Structures Forum 93 1446 93 1519 written by and published by . This book was released on 1993 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1955 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
