... with the fluid-structure interaction problems [( 5 ), 6 , 12 ]. In the FE/BE approach, the finite element method is used to describe the dynamics of the structure, while the boundary element method is used to represent the acoustic loading acting on the structure. Modal models were also developed...

..., aimed at alleviating the corresponding cabin noise. The aeroacoustoelastic plant model considered in the control problem is obtained by combining modal approaches for the description of cabin acoustic field and fuselage shell dynamics, with a boundary element method scattering formulation...

...Tian Ran Lin; Chris Mechefske; Peter O’Shea Characteristics of modal sound radiation of finite cylindrical shells are studied using finite element and boundary element methods in this paper. In the low frequency range, modal radiation efficiencies of finite cylindrical shells are found...

... nondestructive evaluation. This study uses the eigenvalues to implement a simple acoustic shape differentiation algorithm that is the key in our direct nondestructive analysis. Stability and convergence of the Galerkin boundary element method used herein are discussed. Finally, some numerical examples are shown...

... and microscale disks, a wide range of operating frequencies, and different fluidic environments. Viscous fluidic impedances are computed using a finite element model, whereas acoustic fluidic impedances are computed using a boundary element method. For a disk with a given clamping ratio vibrating in a specific...

... in the cyclostationary sound field. In this presented work the CYNAH method is combined with the boundary element method (BEM) to overcome the limitations on the geometries of the planar CYNAH method. The methods used in the conventional BEM-based NAH to overcome nonuniqueness and the ill-posed nature should be also...

... on the deterministic excitation. New methods are developed to account for stochastic excitation. The structural-acoustic response is calculated using finite element method and boundary element method combined with stochastic analysis techniques. An accurate and highly efficient algorithm series for structural...

... discretizations may be chosen to obtain high eigenfrequencies. We discuss the stability and convergence of the proposed method. Finally we show some examples. 04 05 2005 19 01 2009 07 04 2009 architectural acoustics boundary-elements methods eigenvalues and eigenfunctions Galerkin method...

..., respectively, at the fluid-structure interface, and ρ is density of the fluid. The reader is referred to Refs. 8 9 for detailed information on the formulation of direct boundary element method/finite element method (BEM/FEM). Since the structure is preloaded due to the thermal field, the natural...

... are accommodated through admittance relation. Results show that impact of absorbent layers is frequency dependent while modifying structural damping has a better prospect. structural acoustics acoustic wave absorption laminates boundary-elements methods finite element analysis vibrations damping...

... method with the boundary element method (BEM) and a direct HRTF measurement. The HRTFs obtained using the virtual source method agrees reasonably well in terms of frequency response, directional response, and impulse response with the other methods. From the numerical perspectives, the virtual source...

... November 2000 12 06 2002 structural acoustics finite element analysis boundary-elements methods laminates optimisation This paper presents the results of the structural acoustic optimization of an unstiffened multi-ply graphite epoxy cylindrical shell. The objective...

... 01 February 2002 12 06 2002 pipe flow aeroacoustics acoustic noise boundary-elements methods flow simulation The intake system of an engine has three main functions. Its first and usually most identifiable function is to provide a method of filtering the air to ensure...