Linear And Nonlinear Dynamic Analysis By Boundary Element Method
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Linear And Nonlinear Dynamic Analysis By Boundary Element Method
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Author : Shahid Ahmad
language : en
Publisher:
Release Date : 1991
Linear And Nonlinear Dynamic Analysis By Boundary Element Method written by Shahid Ahmad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Boundary element analysis categories.
Linear And Nonlinear Dynamic Analysis By Boundary Element Method
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Author : Shahid Ahmad
language : en
Publisher:
Release Date : 1986
Linear And Nonlinear Dynamic Analysis By Boundary Element Method written by Shahid Ahmad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Boundary element methods categories.
Boundary Element Methods In Nonlinear Fluid Dynamics
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Author : P.K. Banerjee
language : en
Publisher: CRC Press
Release Date : 1990-05-31
Boundary Element Methods In Nonlinear Fluid Dynamics written by P.K. Banerjee and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-05-31 with Science categories.
This volume demonstrates that boundary element methods are both elegant and efficient in their application to time dependent time harmonic problems in engineering and therefore worthy of considerable development.
Static And Dynamic Analysis Of Engineering Structures
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Author : Levon G. Petrosian
language : en
Publisher: John Wiley & Sons
Release Date : 2020-05-11
Static And Dynamic Analysis Of Engineering Structures written by Levon G. Petrosian and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-11 with Technology & Engineering categories.
An authoritative guide to the theory and practice of static and dynamic structures analysis Static and Dynamic Analysis of Engineering Structures examines static and dynamic analysis of engineering structures for methodological and practical purposes. In one volume, the authors – noted engineering experts – provide an overview of the topic and review the applications of modern as well as classic methods of calculation of various structure mechanics problems. They clearly show the analytical and mechanical relationships between classical and modern methods of solving boundary value problems. The first chapter offers solutions to problems using traditional techniques followed by the introduction of the boundary element methods. The book discusses various discrete and continuous systems of analysis. In addition, it offers solutions for more complex systems, such as elastic waves in inhomogeneous media, frequency-dependent damping and membranes of arbitrary shape, among others. Static and Dynamic Analysis of Engineering Structures is filled with illustrative examples to aid in comprehension of the presented material. The book: Illustrates the modern methods of static and dynamic analysis of structures; Provides methods for solving boundary value problems of structural mechanics and soil mechanics; Offers a wide spectrum of applications of modern techniques and methods of calculation of static, dynamic and seismic problems of engineering design; Presents a new foundation model. Written for researchers, design engineers and specialists in the field of structural mechanics, Static and Dynamic Analysis of Engineering Structures provides a guide to analyzing static and dynamic structures, using traditional and advanced approaches with real-world, practical examples.
Boundary Element Method For Nonlinear Modal Analysis Of Systems Undergoing Unilateral Contact
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Author : Jayantheeswar Venkatesh
language : en
Publisher:
Release Date : 2017
Boundary Element Method For Nonlinear Modal Analysis Of Systems Undergoing Unilateral Contact written by Jayantheeswar Venkatesh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
"In structural dynamics, autonomous conservative systems commonly exhibit continuous families of periodic orbits in the phase space, usually known as modes of vibration. The main task of modal analysis is to accurately compute natural frequencies and corresponding mode shapes of vibratory mechanical systems as they are known, at least in a linear context, to properly predict the conditions under which the associated periodically forced and slightly damped systems will resonate.Characterizing the modes of vibration of nonlinear yet smooth mechanical systems (systems governed by ordinary or partial differential equations that are smooth with respect to the unknown displacement and velocity) is a current topic of interest in the industrial and academic spheres. Many useful tools, such as the Finite Element Method (FEM), the Harmonic Balance Method (HBM), the continuation techniques and the Frequency--Energy Plots (FEP) provide great assistance in understanding the modal dynamics. Theoretical as well as numerical issues arise when extending these tools to nonsmooth problems such as unilateral contact formulations. The dynamics of two impacting bodies is characterized by travelling waves emanating from the contact interface. In the one-dimensional setting, chosen in this work, these waves couple time and space, in the sense that they are functions of the form f(x+ct) or f(x-ct) where c is the wave velocity. Uncoupling time t and space x leads to numerical and theoretical issues. In FEM, the displacement commonly takes the form u(x,t)= \sum_i \phi_i(x) u_i(t), where u_i(t) is the i-th displacement participation and \phi_i(x), the corresponding shape function. This leads to spurious oscillations, dispersion, and energy dissipation, for most numerical schemes dealing with unilateral contact conditions. Additionally, an impact law is required to uniquely describe the time-evolution of a space semi-discretized formulation. The impact law should be purely elastic to preserve energy, making it difficult to describe lasting contact phases which are expected in the continuous framework. Time-Domain Boundary Element Medthod (TD-BEM) which appropriately combines space and time seems promising as it uses Green's functions that are travelling waves.In this work, unilateral contact conditions are considered for a one-dimensional bar system clamped on one end and undergoing a complementarity condition on the other end. The complementarity form is dealt with as a switch between Dirichlet and Neumann boundary conditions. In dynamics, the solution can thus be retrieved through time marching using TD-BEM with a switch between fixed state when it is in contact and free when it is released. In vibration analysis of autonomous systems, periodic solutions are sought to obtain the mode shapes of the system. In this thesis, TD-BEM presumes the existence of periodic solutions and shooting is employed to find the initial conditions that lead to the assumed periodic solutions. Backbone curves in frequency-energy are constructed via continuation. Existing analytical solutions serve as references for validating the suggested scheme. TD-BEM does not numerically dissipate energy unlike FEM and properly captures wave fronts as expected. The proposed formulation is capable of capturing main, subharmonic as well as internal resonance backbone curves known to emerge in nonlinear dynamics. For the system of interest, the main and subharmonic mode shapes are piecewise-linear function in space and time, as opposed to the linear mode shapes that are half sine waves in space and full sine waves in time." --
Boundary Element Methods
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Author : S. Kobayashi
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Boundary Element Methods written by S. Kobayashi and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Technology & Engineering categories.
The Boundary Element Methods (BEM) has become one of the most efficient tools for solving various kinds of problems in engineering science. The International Association for Boundary Element Methods (IABEM) was established in order to promote and facilitate the exchange of scientific ideas related to the theory and applications of boundary element methods. The aim of this symposium is to provide a forum for researchers in boundary element methods and boundary-integral formulations in general to present contemporary concepts and techniques leading to the advancement of capabilities and understanding of this com putational methodology. The topics covered in this symposium include mathematical and computational aspects, applications to solid mechanics, fluid mechanics, acoustics, electromagnetics, heat transfer, optimization, control, inverse problems and other interdisciplinary problems. Papers deal ing with the coupling of the boundary element method with other computational methods are also included. The editors hope that this volume presents some innovative techniques and useful knowl edge for the development of the boundary element methods. February, 1992 S. Kobayashi N. Nishimura Contents Abe, K.
Boundary Element Methods In Structural Analysis
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Author : D. E. Beskos
language : en
Publisher:
Release Date : 1989
Boundary Element Methods In Structural Analysis written by D. E. Beskos and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Mathematics categories.
Boundary Elements In Dynamics
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Author : J. Dominguez
language : en
Publisher: WIT Press
Release Date : 1993
Boundary Elements In Dynamics written by J. Dominguez and has been published by WIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Technology & Engineering categories.
A reference for those who need to acquire detailed knowledge of the formulation, implementation, and practical applications of BEM in dynamics. The author presents research on BEM in dynamics of continua. The main emphasis is on the development of the different boundary element formulations.
Boundary Element Advances In Solid Mechanics
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Author : Dimitri Beskos
language : en
Publisher: Springer
Release Date : 2014-05-04
Boundary Element Advances In Solid Mechanics written by Dimitri Beskos and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-04 with Technology & Engineering categories.
This volume presents and discusses recent advances in boundary element methods and their solid mechanics applications. It illustrates these methods in their latest forms, developed during the last five to ten years, and demonstrates their advantages in solving a wide range of solid mechanics problems.
Boundary Element Methods
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Author : Q. Du
language : en
Publisher: Elsevier
Release Date : 2014-05-23
Boundary Element Methods written by Q. Du and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-23 with Science categories.
Significant developments in the boundary element method during the last two decades have made it a powerful alternative to the domain-type numerical methods of solution such as the finite element method. The advances made in the BEM are more or less due to the innovation of efficient computational techniques by introducing boundary elements for discretization of the boundary integral equations resulting from the so-called direct formulation. BEM has therefore become an efficient tool for optimal design and other inverse problems. These proceedings include discussion of the applications of BEM in mechanical engineering and the principles that have developed to make it an increasingly useful method of problem solving.