Structural Acoustics and Vibration

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Structural Acoustics and Vibration

Author: ROGER OHAYON, CHRISTIAN SOIZE | Size: 17.04 MB | Format: PDF | Publisher: Academic Press | Year: 1998 | pages: 424 | ISBN: 0125249454

By
Roger Ohayon, Conservatoire National des Arts et Metiers (CNAM), Paris, France
Christian Soize, Office National d'Etudes et de Recherche Aerospatiales (ONERA), Chatillon, France

Structural Acoustics and Vibration presents the modeling of vibrations of complex structures coupled with acoustic fluids in the low and medium frequency ranges. It is devoted to mechanical models, variationalformulations and discretization for calculating linear vibrations in the frequency domain of complex structures. The book includes theoretical formulations which are directly applicable to develop computer codes for the numerical simulation of complex systems, and gives a general scientific strategy to solve various complex structural acoustics problems in different areas such as spacecraft, aircraft, automobiles, and naval structures. The researcher may directly apply the material of the book to practical problems such as acoustic pollution, the comfort of passengers, and acoustic loads induced by propellers.Structural Acoustics and Vibration considers the mechanical and numerical aspects of the problem, and gives original solutions to the predictability of vibrations of complex structures interacting with internal and external, liquid and gaseous fluids. It is a self-contained general synthesis with a didactic presentation and fills the gap between analytical methods applied to simple geometries and statistical methods, which are useful in high frequency structural acoustic problems.

Audience:
Post-graduate and post-doctoral students, researchers, and engineers in applied, computational, and structural mechanics; vibrations, structural dynamics, and acoustics; aerospace, naval and civil engineering, and the automotive industry.

Contents:
A Strategy for Structural-Acoustic Problems. Basic Notions on Variational Formulations. Linearized Vibrations of Conservative Structures and Structural Modes. Dissipative Constitutive Equation for the Master Structure. Master Structure Frequency Response Function. Calculation of the Master Structure Frequency Response function in the LF Range. Calculation of the Master Structure Frequency Response Function in the MF Range. Reduced Model in the MF Range. Response to Deterministic and Random Excitations. Linear Acoustic Equations. Internal Acoustic Fluid Formulation for the LF and MF Ranges. External Acoustic Fluid: Boundary Integral Formulation for the LF and MF Ranges. Structural-Acoustic Master System in the LF Range. Structural-Acoustic Master System in the MF Range. Fuzzy Structure Theory. Appendix: Mathematical Notations. References. Subject Index. Symbol Index.

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