Vibration and Acoustic Radiation of Fluid-loaded Sandwich Panels PDF Download
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Author: Abdelouahab Benzerdjeb
Publisher:
ISBN:
Category : Acoustic radiation pressure
Languages : en
Pages : 272
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Book Description
Author: Abdelouahab Benzerdjeb
Publisher:
ISBN:
Category : Acoustic radiation pressure
Languages : en
Pages : 272
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Book Description
Author: Tianjian Lu
Publisher: Springer
ISBN: 3642553583
Category : Science
Languages : en
Pages : 350
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Book Description
Vibro-Acoustics of Lightweight Sandwich Structures introduces the study of the coupled vibration and acoustic behavior of lightweight sandwich structures in response to harmonic force and sound pressure. This book focuses on the theoretical modeling and experimental investigation of lightweight sandwich structures in order to provide a predictive framework for vibro-acoustic characteristics of typical engineering structures. Furthermore, by developing solution tools, it concentrates on the influence of key systematic parameters leading to effective guidance for optimal structure design toward lightweight, high-stiffness and superior sound insulation capability. This book is intended for researchers, scientists, engineers and graduate students in mechanical engineering especially in structural mechanics, mechanics and acoustics. Fengxian Xin and Tianjian Lu both work at the School of Aerospace, Xi’an Jiaotong University.
Author: Sabih I. Hayek
Publisher:
ISBN:
Category : Plates (Engineering)
Languages : en
Pages : 178
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Book Description
Author: Philippe L. Maillet
Publisher:
ISBN:
Category : Acoustic radiation pressure
Languages : en
Pages : 226
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Book Description
Author: Frank J. Fahy
Publisher: Elsevier
ISBN: 0080471102
Category : Technology & Engineering
Languages : en
Pages : 666
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Book Description
The first edition of Sound and Structural Vibration was written in the early 1980s. Since then, two major developments have taken place in the field of vibroacoustics. Powerful computational methods and procedures for the numerical analysis of structural vibration, acoustical fields and acoustical interactions between fluids and structures have been developed and these are now universally employed by researchers, consultants and industrial organisations. Advances in signal processing systems and algorithms, in transducers, and in structural materials and forms of construction, have facilitated the development of practical means of applying active and adaptive control systems to structures for the purposes of reducing or modifying structural vibration and the associated sound radiation and transmission. In this greatly expanded and extensively revised edition, the authors have retained most of the analytically based material that forms the pedagogical content of the first edition, and have expanded it to present the theoretical foundations of modern numerical analysis. Application of the latter is illustrated by examples that have been chosen to complement the analytical approaches to solving fairly simple problems of sound radiation, transmission and fluid-structural coupling that are presented in the first edition. The number of examples of experimental data that relate to the theoretical content, and illustrate important features of vibroacoustic interaction, has been augmented by the inclusion of a selection from the vast amount of material published during the past twenty five years. The final chapter on the active control of sound and vibration has no precursor in the first edition. * Covers theoretical approaches to modeling and analysis* Highly applicable to challenges in industry and academia* For engineering students to use throughout their career
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1468451979
Category : Science
Languages : en
Pages : 407
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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 29 (thesis year 1984) a total of 12,637 theses titles from 23 Canadian and 202 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 29 reports theses submitted in 1984, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Author: Anders Nilsson
Publisher: Springer
ISBN: 3662479346
Category : Science
Languages : en
Pages : 453
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Book Description
Author: Luyao Wang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Sandwich structures with decent sound insulation and absorption properties have been widely used in the engineering fields such as aerospace engineering, marine engineering and civil and construction engineering. Investigations on the acoustic behavior of sandwich structures is of practical importance, not only for engineers but to researchers in the field. A numerical study of the vibro-acoustic and sound transmission loss (STL) of an aluminum honeycomb core sandwich panel with fabric-reinforced graphite (FRG) composite face sheets is performed in the present research. The honeycomb sandwich structure, faced with an FRG composite face sheet, has acoustic advantages over other types of sandwich structures commonly used in the field. The effects of different boundary conditions and geometric properties of the FRG faced honeycomb structure on the stiffness of the structure are evaluated. The effects of the stiffness on the acoustic performance of the structure are investigated. Truss core sandwich panels filled with sound absorbing materials are also studied numerically for the panels' vibration responses and STL behavior. The performances of a polyurethane (PUF)-foam-filled truss core sandwich panel and a wood-board-filled truss core sandwich panel are compared. The wood based sandwich panel shows advantages with compatible acoustic performance and environmental-friendly characteristics over the PUF foam panel. The acoustic behavior of the wood-based porous media, with varying airflow properties, are investigated. The most significant factor affecting the vibro-acoustic responses of the panel are identified. The wood-based-porous-medium-filled truss core sandwich panel with various face sheet materials are analyzed. A truss core 2 sandwich panel is designed with the optimal combination of wood-board and face sheet materials. Numerical models, based on the sandwich theory, are established based on the assumption the sandwich core is an orthotropic structural layer. The radiated sound power from the panel is quantified with the Rayleigh integral method. A random diffuse field is used as an incident sound source and is derived with the finite element method using ACTRAN. The numerical results generated with the implementation of the models are validated with experimental data available in the literature. The findings provide guidance for selecting and designing honeycomb core and truss core sandwich panels with decent acoustic properties for engineering applications. The developed approach presents practical significance for quantitatively evaluating and designing sandwich panels with high efficiency and effectiveness, when the acoustic and vibrational performance of the panels need to be considered.
Author: Claudio Guarnaccia
Publisher: MDPI
ISBN: 3039282840
Category : Science
Languages : en
Pages : 584
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Book Description
Modelling and simulation in acoustics is currently gaining importance. In fact, with the development and improvement of innovative computational techniques and with the growing need for predictive models, an impressive boost has been observed in several research and application areas, such as noise control, indoor acoustics, and industrial applications. This led us to the proposal of a special issue about “Modelling, Simulation and Data Analysis in Acoustical Problems”, as we believe in the importance of these topics in modern acoustics’ studies. In total, 81 papers were submitted and 33 of them were published, with an acceptance rate of 37.5%. According to the number of papers submitted, it can be affirmed that this is a trending topic in the scientific and academic community and this special issue will try to provide a future reference for the research that will be developed in coming years.
Author: Roberto Camussi
Publisher: Springer Science & Business Media
ISBN: 3709114586
Category : Technology & Engineering
Languages : en
Pages : 453
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Book Description
The articles in this volume present the state-of-the-art in noise prediction, modeling and measurement. The articles are partially based on class notes provided during the course `Noise sources in turbulent shear flows', given at CISM on April 2011. The first part contains general concepts of aero acoustics, including vortex sound theory and acoustic analogies, in the second part particular emphasis is put into arguments of interest for engineers and relevant for aircraft design: jet noise, airfoil broadband noise, boundary layer noise (including interior noise and its control) and the concept of noise sources, their theoretical modeling and identification in turbulent lows. All these arguments are treated extensively with the inclusion of many practical examples and references to engineering applications.
