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Signal Processing Criteria and Statistical Error Analysis for Acoustic Measurements in Duct Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A one-dimensional acoustic theory for random sound fields is presented. The theory is applied to the description of a random sound field in a tube of finite length terminated at the source ...
Radiation and Scattering of Acoustic Waves from Bodies of Arbitrary Shape in a Three-Dimensional Half Space
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper is concerned with the application of the Boundary Integral Equation (BIE) method to acoustic radiation and scattering in a three-dimensional half space. Problems in this class include ...
The High-Frequency Radiation of Sound from Bodies of Arbitrary Shape
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper the problem of calculating the sound field in a three-dimensional fluid of infinite extent due to a body of arbitrary shape which is vibrating harmonically is considered. Interest ...
Application of the Boundary Element Method to Acoustic Cavity Response and Muffler Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper is concerned with the application of the Boundary Element Method (BEM) to interior acoustics problems governed by the reduced wave (Helmholtz) differential equation. The development ...
The Radiation of Sound from Mass-Loaded and Stiffened Beams
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study examines the sound radiation efficiency of uniform, mass-loaded, and stiffened beams. The radiation efficiency of vibrating beams is determined using a finite element vibration model ...
The Use of Coherence Techniques to Predict the Effect of Engine Operating Parameters on Diesel Engine Noise
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A technique is presented in which the effects on noise of changing diesel engine operating parameters can be predicted. Traditionally, the effects have been determined by experiment. The technique ...
A Coupled FEM/BEM for Fluid-Structure Interaction Using Ritz Vectors and Eigenvectors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the finite element (FEM) and the boundary element method (BEM) are combined together to solve a class of fluid-structure interaction problems. The FEM is used to model the ...
Boundary Element Prediction of Sound Propagation in Ducts Containing Bulk Absorbing Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper the sound propagation in a rectangular duct containing a bulk absorbing foam liner is investigated. The foam is characterized by the complex characteristic impedance and propagation ...
Application of the BIE Method to Sound Radiation Problems Using an Isoparametric Element
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper discusses the application of the Boundary Integral Equation method for the numerical solution of radiation problems governed by Helmholtz’s equation. In particular, we introduce an ...
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