Finite Element Analysis of Acoustic Scattering

Finite Element Analysis of Acoustic Scattering PDF Author: Frank Ihlenburg
Publisher: Springer Science & Business Media
ISBN: 0387227008
Category : Mathematics
Languages : en
Pages : 238

Get Book Here

Book Description
A cognitive journey towards the reliable simulation of scattering problems using finite element methods, with the pre-asymptotic analysis of Galerkin FEM for the Helmholtz equation with moderate and large wave number forming the core of this book. Starting from the basic physical assumptions, the author methodically develops both the strong and weak forms of the governing equations, while the main chapter on finite element analysis is preceded by a systematic treatment of Galerkin methods for indefinite sesquilinear forms. In the final chapter, three dimensional computational simulations are presented and compared with experimental data. The author also includes broad reference material on numerical methods for the Helmholtz equation in unbounded domains, including Dirichlet-to-Neumann methods, absorbing boundary conditions, infinite elements and the perfectly matched layer. A self-contained and easily readable work.

Finite Element Analysis of Acoustic Scattering

Finite Element Analysis of Acoustic Scattering PDF Author: Frank Ihlenburg
Publisher: Springer Science & Business Media
ISBN: 0387227008
Category : Mathematics
Languages : en
Pages : 238

Get Book Here

Book Description
A cognitive journey towards the reliable simulation of scattering problems using finite element methods, with the pre-asymptotic analysis of Galerkin FEM for the Helmholtz equation with moderate and large wave number forming the core of this book. Starting from the basic physical assumptions, the author methodically develops both the strong and weak forms of the governing equations, while the main chapter on finite element analysis is preceded by a systematic treatment of Galerkin methods for indefinite sesquilinear forms. In the final chapter, three dimensional computational simulations are presented and compared with experimental data. The author also includes broad reference material on numerical methods for the Helmholtz equation in unbounded domains, including Dirichlet-to-Neumann methods, absorbing boundary conditions, infinite elements and the perfectly matched layer. A self-contained and easily readable work.

The Scaled Boundary Finite Element Method

The Scaled Boundary Finite Element Method PDF Author: Chongmin Song
Publisher: John Wiley & Sons
ISBN: 1119388155
Category : Science
Languages : en
Pages : 500

Get Book Here

Book Description
An informative look at the theory, computer implementation, and application of the scaled boundary finite element method This reliable resource, complete with MATLAB, is an easy-to-understand introduction to the fundamental principles of the scaled boundary finite element method. It establishes the theory of the scaled boundary finite element method systematically as a general numerical procedure, providing the reader with a sound knowledge to expand the applications of this method to a broader scope. The book also presents the applications of the scaled boundary finite element to illustrate its salient features and potentials. The Scaled Boundary Finite Element Method: Introduction to Theory and Implementation covers the static and dynamic stress analysis of solids in two and three dimensions. The relevant concepts, theory and modelling issues of the scaled boundary finite element method are discussed and the unique features of the method are highlighted. The applications in computational fracture mechanics are detailed with numerical examples. A unified mesh generation procedure based on quadtree/octree algorithm is described. It also presents examples of fully automatic stress analysis of geometric models in NURBS, STL and digital images. Written in lucid and easy to understand language by the co-inventor of the scaled boundary element method Provides MATLAB as an integral part of the book with the code cross-referenced in the text and the use of the code illustrated by examples Presents new developments in the scaled boundary finite element method with illustrative examples so that readers can appreciate the significant features and potentials of this novel method—especially in emerging technologies such as 3D printing, virtual reality, and digital image-based analysis The Scaled Boundary Finite Element Method: Introduction to Theory and Implementation is an ideal book for researchers, software developers, numerical analysts, and postgraduate students in many fields of engineering and science.

Acoustic Analyses Using Matlab® and Ansys®

Acoustic Analyses Using Matlab® and Ansys® PDF Author: Carl Q. Howard
Publisher: CRC Press
ISBN: 1482223252
Category : Technology & Engineering
Languages : en
Pages : 711

Get Book Here

Book Description
Techniques and Tools for Solving Acoustics Problems This is the first book of its kind that describes the use of ANSYS® finite element analysis (FEA) software, and MATLAB® engineering programming software to solve acoustic problems. It covers simple text book problems, such as determining the natural frequencies of a duct, to progressively more complex problems that can only be solved using FEA software, such as acoustic absorption and fluid-structure-interaction. It also presents benchmark cases that can be used as starting points for analysis. There are practical hints too for using ANSYS software. The material describes how to solve numerous problems theoretically, and how to obtain solutions from the theory using MATLAB engineering software, as well as analyzing the same problem using ANSYS Workbench and ANSYS Mechanical APDL. Developed for the Practicing Engineer Free downloads on http://www.mecheng.adelaide.edu.au/avc/software, including MATLAB source code, ANSYS APDL models, and ANSYS Workbench models Includes readers’ techniques and tips for new and experienced users of ANSYS software Identifies bugs and deficiencies to help practitioners avoid making mistakes Acoustic Analyses Using MATLAB® and ANSYS® can be used as a textbook for graduate students in acoustics, vibration, and related areas in engineering; undergraduates in mechanical and electrical engineering; and as an authoritative reference for industry professionals.

Noise and Vibration Control Engineering

Noise and Vibration Control Engineering PDF Author: István L. Vér
Publisher: John Wiley & Sons
ISBN: 0471449423
Category : Technology & Engineering
Languages : en
Pages : 976

Get Book Here

Book Description
Noise and Vibration Control Engineering: Principles and Applications, Second Edition is the updated revision of the classic reference containing the most important noise control design information in a single volume of manageable size. Specific content updates include completely revised material on noise and vibration standards, updated information on active noise/vibration control, and the applications of these topics to heating, ventilating, and air conditioning.

The Boundary Element Method in Acoustics

The Boundary Element Method in Acoustics PDF Author: Stephen Kirkup
Publisher: Stephen Kirkup
ISBN: 9780953403103
Category : Acoustical engineering
Languages : en
Pages : 136

Get Book Here

Book Description


Vibration and Structural Acoustics Analysis

Vibration and Structural Acoustics Analysis PDF Author: C.M.A. Vasques
Publisher: Springer Science & Business Media
ISBN: 9400717032
Category : Technology & Engineering
Languages : en
Pages : 349

Get Book Here

Book Description
Vibration and structural acoustics analysis has become an essential requirement for high-quality structural and mechanical design in order to assure acoustic comfort and the integrity, reliability and fail-safe behavior of structures and machines. The underlying technologies of this field of multidisciplinary research are evolving very fast and their dissemination is usually scattered over different and complementary scientific and technical publication means. In order to make it easy for developers and technology end-users to follow the latest developments and news in the field, this book collects into a single volume selected, extended, updated and revised versions of papers presented at the Symposium on Vibration and Structural Acoustics Analysis, coordinated by J. Dias Rodrigues and C. M. A. Vasques, which was organised as part of the 3rd International Conference on Integrity, Reliability & Failure (IRF’2009), co-chaired by J. F. Silva Gomes and Shaker A. Meguid, held at the Faculty of Engineering of the University of Porto, Portugal, 20-24 July 2009. These papers where chosen from the more than 60 papers presented at the conference symposium. Written by experienced practitioners and researchers in the field, this book brings together recent developments in the field, spanning across a broad range of themes: vibration analysis, analytical and computational structural acoustics and vibration, material systems and technologies for noise and vibration control, vibration-based structural health monitoring/evaluation, machinery noise/vibration and diagnostics, experimental testing in vibration and structural acoustics, applications and case studies in structural acoustics and vibration. Each chapter presents and describes the state of the art, presents current research results and discusses the need for future developments in a particular aspect of vibration and structural acoustics analysis. The book is envisaged to be an appealing text for newcomers to the subject and a useful research study tool for advanced students and faculty members. Practitioners and researchers may also find this book a one-stop reference that addresses current and future challenges in this field. The variety of case studies is expected to stimulate a holistic view of sound and vibration and related fields and to appeal to a broad spectrum of engineers such as the ones in the mechanical, aeronautical, aerospace, civil and electrical communities.

Finite Element Methods for Maxwell's Equations

Finite Element Methods for Maxwell's Equations PDF Author: Peter Monk
Publisher: Oxford University Press
ISBN: 9780198508885
Category : Mathematics
Languages : en
Pages : 472

Get Book Here

Book Description
Finite Element Methods For Maxwell's Equations is the first book to present the use of finite elements to analyse Maxwell's equations. This book is part of the Numerical Analysis and Scientific Computation Series.

Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods

Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods PDF Author: Steffen Marburg
Publisher: Springer Science & Business Media
ISBN: 3540774483
Category : Science
Languages : en
Pages : 584

Get Book Here

Book Description
The book provides a survey of numerical methods for acoustics, namely the finite element method (FEM) and the boundary element method (BEM). It is the first book summarizing FEM and BEM (and optimization) for acoustics. The book shows that both methods can be effectively used for many other cases, FEM even for open domains and BEM for closed ones. Emphasis of the book is put on numerical aspects and on treatment of the exterior problem in acoustics, i.e. noise radiation.

Computational Acoustics

Computational Acoustics PDF Author: Manfred Kaltenbacher
Publisher: Springer
ISBN: 3319590383
Category : Technology & Engineering
Languages : en
Pages : 257

Get Book Here

Book Description
The book presents a state-of-art overview of numerical schemes efficiently solving the acoustic conservation equations (unknowns are acoustic pressure and particle velocity) and the acoustic wave equation (pressure of acoustic potential formulation). Thereby, the different equations model both vibrational- and flow-induced sound generation and its propagation. Latest numerical schemes as higher order finite elements, non-conforming grid techniques, discontinuous Galerkin approaches and boundary element methods are discussed. Main applications will be towards aerospace, rail and automotive industry as well as medical engineering. The team of authors are able to address these topics from the engineering as well as numerical points of view.

Finite Element Analysis of Polymers and Composites

Finite Element Analysis of Polymers and Composites PDF Author: Sathish Kumar Palaniappan
Publisher: Elsevier
ISBN: 0443140863
Category : Technology & Engineering
Languages : en
Pages : 821

Get Book Here

Book Description
Finite Element Analysis of Polymers and its Composites offers up-to-date and significant findings on the finite element analysis of polymers and its composite materials. It is important to point out, that to date, there are no books that have been published in this concept. Thus, academicians, researchers, scientists, engineers, and students in the similar field will benefit from this highly application-oriented book. This book summarizes the experimental, mathematical and numerical analysis of polymers and its composite materials through finite element method. It provides detailed and comprehensive information on mechanical properties, fatigue and creep behaviour, thermal behaviour, vibrational analysis, testing methods and their modeling techniques. In addition, this book lists the main industrial sectors in which polymers and its composite materials simulation is used, and their gains from it, including aeronautics, medical, aerospace, automotive, naval, energy, civil, sports, manufacturing and even electronics. Expands knowledge about the finite element analysis of polymers and composite materials to broaden application range Presents an extensive survey of recent developments in research Offers advancements of finite element analysis of polymers and composite materials Written by leading experts in the field Provides cutting-edge, up-to-date research on the characterization, analysis, and modeling of polymeric composite materials