Development of an energy boundary element formulation for computing high-frequency sound radiation from incoherent intensity boundary conditions

Wang, A.; Vlahopoulos, Nickolas; Wu, Kuangcheng

doi:10.1016/j.jsv.2003.06.018

Cited by 39 publications

(20 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The FMBEM applies iterative solvers to solve the system of equations and accelerates the matrix-vector multiplication to reduce the memory requirement to O(N ), the number of operations to O(N log 2 N ) and the solution time to O(N )(see Liu, 2009). Other variants that have been proposed are the Wave BEM for scattering problems which includes the wave behaviour into the shape functions of the element and needs a much coarser mesh than the conventional BEM (PerreyDebain et al, 2003) or the Energy Boundary Element Analysis (EBEA) that can calculate the acoustic field generated at high frequency from a radiator with incoherent intensity boundary conditions (Wang et al, 2004). …”

Section: Introductionmentioning

confidence: 99%

Acoustical Boundary Elements: Theory and Virtual Experiments

Piscoya

Ochmann

2015

Archives of Acoustics

View full text Add to dashboard Cite

This paper presents an overview of basic concepts, features and difficulties of the boundary element method (BEM) and examples of its application to exterior and interior problems. The basic concepts of the BEM are explained firstly, and different methods for treating the non-uniqueness problem are described. The application of the BEM to half-space problems is feasible by considering a Green's Function that satisfies the boundary condition on the infinite plane. As a special interior problem, the sound field in an ultrasonic homogenizer is computed. A combination of the BEM and the finite element method (FEM) for treating the problem of acoustic-structure interaction is also described. Finally, variants of the BEM are presented, which can be applied to problems arising in flow acoustics.

show abstract

Section: Introductionmentioning

confidence: 99%

Acoustical Boundary Elements: Theory and Virtual Experiments

Piscoya

Ochmann

2015

Archives of Acoustics

View full text Add to dashboard Cite

show abstract

“…Lee et al (2008) applied EFBEM to the vibration analysis of beam and plate problems. Also Wang et al (2004) applied energy boundary element formulation to the sound radiation problems.…”

Section: Introductionmentioning

confidence: 99%

Development of indirect EFBEM for radiating noise analysis including underwater problems

Kwon¹,

Hong²,

Song³

2013

International Journal of Naval Architecture and Ocean Engineeri

View full text Add to dashboard Cite

For the analysis of radiating noise problems in medium-to-high frequency ranges, the Energy Flow Boundary Element Method (EFBEM) was developed. EFBEM is the analysis technique that applies the Boundary Element Method (BEM) to Energy Flow Analysis (EFA). The fundamental solutions representing spherical wave property for radiating noise problems in open field and considering the free surface effect in underwater are developed. Also the directivity factor is developed to express wave's directivity patterns in medium-to-high frequency ranges. Indirect EFBEM by using fundamental solutions and fictitious source was applied to open field and underwater noise problems successfully. Through numerical applications, the acoustic energy density distributions due to vibration of

show abstract

“…In the following discussion, this energy method will be called the Simplified Energy Method (or MES). MES has already been evaluated and validated for various elastic media such as beams [5,7,9], membranes and plates [5,10], and acoustic cavities [7,12]. This method has also been considered in both the transient and stationary cases [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Acoustic absorption material optimisation in the mid–high frequency range

Besset¹,

Ichchou²

2011

Applied Acoustics

View full text Add to dashboard Cite

a b s t r a c tAcoustic modelling, applicable to poroelastic materials in a wide frequency range, is time consuming. This paper offers an energy method for optimising absorption coefficients at the boundaries of an acoustic cavity. The influence of absorption coefficients on this proposed energy method will be examined first. The next step will seek to optimise the location of absorbing materials. Numerical results will prove the method's effectiveness. Improvements in the overall optimisation process will also be proposed. A model based on polynomial interpolations will be developed in order to further reduce time consumption.

show abstract

Development of an energy boundary element formulation for computing high-frequency sound radiation from incoherent intensity boundary conditions

Cited by 39 publications

References 25 publications

Acoustical Boundary Elements: Theory and Virtual Experiments

Acoustical Boundary Elements: Theory and Virtual Experiments

Development of indirect EFBEM for radiating noise analysis including underwater problems

Acoustic absorption material optimisation in the mid–high frequency range

Contact Info

Product

Resources

About