Computational And Experimental Techniques For Coupled Acoustic Structure Interactions PDF Download
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| Author | : Jeffrey Lynn Dohner |
| Publisher | : |
| Total Pages | : 51 |
| Release | : 2004 |
| Genre | : |
| ISBN | : |
Download Computational and Experimental Techniques for Coupled Acoustic/structure Interactions Book in PDF, ePub and Kindle
This report documents the results obtained during a one-year Laboratory Directed Research and Development (LDRD) initiative aimed at investigating coupled structural acoustic interactions by means of algorithm development and experiment. Finite element acoustic formulations have been developed based on fluid velocity potential and fluid displacement. Domain decomposition and diagonal scaling preconditioners were investigated for parallel implementation. A formulation that includes fluid viscosity and that can simulate both pressure and shear waves in fluid was developed. An acoustic wave tube was built, tested, and shown to be an effective means of testing acoustic loading on simple test structures. The tube is capable of creating a semi-infinite acoustic field due to nonreflecting acoustic termination at one end. In addition, a micro-torsional disk was created and tested for the purposes of investigating acoustic shear wave damping in microstructures, and the slip boundary conditions that occur along the wet interface when the Knudsen number becomes sufficiently large.
| Author | : Göran Sandberg |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 276 |
| Release | : 2009-06-18 |
| Genre | : Technology & Engineering |
| ISBN | : 3211896511 |
Download Computational Aspects of Structural Acoustics and Vibration Book in PDF, ePub and Kindle
Computational methods within structural acoustics, vibration and fluid-structure interaction are powerful tools for investigating acoustic and structural-acoustic problems in many sectors of industry; in the building industry regarding room acoustics, in the car industry and aeronautical industry for optimizing structural components with regard to vibrations characteristics etc. It is on the verge of becoming a common tool for noise characterization and design for optimizing structural properties and geometries in order to accomplish a desired acoustic environment. The book covers the field of computational mechanics, and then moved into the field of formulations of multiphysics and multiscale. The book is addressed to graduate level, PhD students and young researchers interested in structural dynamics, vibrations and acoustics. It is also suitable for industrial researchers in mechanical, aeronautical and civil engineering with a professional interest in structural dynamics, vibrations and acoustics or involved in questions regarding noise characterization and reduction in building, car, plane, space, train, industries by means of computer simulations.
| Author | : Joakim Hermansson |
| Publisher | : |
| Total Pages | : 73 |
| Release | : 2001 |
| Genre | : |
| ISBN | : |
Download Computational Techniques in Acoustics and Fluid-structure Interaction Book in PDF, ePub and Kindle
| Author | : Steffen Marburg |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 584 |
| Release | : 2008-02-27 |
| Genre | : Science |
| ISBN | : 3540774483 |
Download Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods Book in PDF, ePub and Kindle
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.
| Author | : |
| Publisher | : |
| Total Pages | : 1052 |
| Release | : 1985 |
| Genre | : Mechanics, Applied |
| ISBN | : |
Download Applied Mechanics Reviews Book in PDF, ePub and Kindle
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 158 |
| Release | : 2018-07-17 |
| Genre | : |
| ISBN | : 9781722944001 |
Download Analysis of Random Structure-Acoustic Interaction Problems Using Coupled Boundary Element and Finite Element Methods Book in PDF, ePub and Kindle
A coupled boundary element (BEM)-finite element (FEM) approach is presented to accurately model structure-acoustic interaction systems. The boundary element method is first applied to interior, two and three-dimensional acoustic domains with complex geometry configurations. Boundary element results are very accurate when compared with limited exact solutions. Structure-interaction problems are then analyzed with the coupled FEM-BEM method, where the finite element method models the structure and the boundary element method models the interior acoustic domain. The coupled analysis is compared with exact and experimental results for a simplistic model. Composite panels are analyzed and compared with isotropic results. The coupled method is then extended for random excitation. Random excitation results are compared with uncoupled results for isotropic and composite panels. Mei, Chuh and Pates, Carl S., III Unspecified Center ACOUSTIC EXCITATION; BOUNDARY ELEMENT METHOD; FINITE ELEMENT METHOD; WAVE INTERACTION; ACOUSTIC COUPLING; COMPOSITE STRUCTURES; ISOTROPY; PANELS...
| Author | : Jean-Marie Crolet |
| Publisher | : CRC Press |
| Total Pages | : 302 |
| Release | : 1994-04-05 |
| Genre | : Mathematics |
| ISBN | : 9780582236912 |
Download Computational Methods for Fluid-Structure Interaction Book in PDF, ePub and Kindle
Fluid-structure interaction is a new theme of investigation in computational methods, covering many applications in both engineering and medical sciences. This book deals with various examples of interaction between a fluid and a structure, and each author presents, for the different problems involved, the method which is considered to be the most appropriate.
| Author | : Nabih Feki |
| Publisher | : Springer Nature |
| Total Pages | : 297 |
| Release | : 2021-05-29 |
| Genre | : Technology & Engineering |
| ISBN | : 3030765172 |
Download Advances in Acoustics and Vibration III Book in PDF, ePub and Kindle
The book provides readers with a snapshot of recent research and industrial trends in field of industrial acoustics and vibration. Each chapter, accepted after a rigorous peer-review process, reports on a selected, original piece of work presented and discussed at the Third International Conference on Acoustics and Vibration (ICAV2021), which was organized by the Tunisian Association of Industrial Acoustics and Vibration (ATAVI) and held online on March 15-16, 2021, from Sfax, Tunisia. The contributions cover advances in both theory and practice in a variety of subfields, such as: smart materials and structures; fluid-structure interaction; structural acoustics as well as computational vibro-acoustics and numerical methods. Further topics include: engines control, noise identification, robust design, flow-induced vibration and many others. This book provides a valuable resource for both academics and professionals dealing with diverse issues in applied mechanics. By combining advanced theories with industrial issues, it is expected to facilitate communication and collaboration between different groups of researchers and technology users.
| Author | : Carl S. Pates |
| Publisher | : |
| Total Pages | : 266 |
| Release | : 1994 |
| Genre | : Boundary element methods |
| ISBN | : |
Download Analysis of Random Structure-acoustic Interaction Problems Using Coupled Boundary Element and Finite Element Methods Book in PDF, ePub and Kindle
| Author | : Naval Undersea Warfare Center (U.S.). In-House Laboratory Independent Research Program |
| Publisher | : |
| Total Pages | : 278 |
| Release | : 1997 |
| Genre | : Hydrodynamics |
| ISBN | : |
Download FY .. Annual ILIR Report Book in PDF, ePub and Kindle
