Recent advances in acoustic boundary element methods
The modern scope of boundary element methods (BEM) for acoustics is reviewed in this
paper. Over the last decades the BEM has gained popularity despite suffering from …
paper. Over the last decades the BEM has gained popularity despite suffering from …
Sound radiation and non-negative intensity of a metaplate consisting of an acoustic black hole plus local resonators
While acoustic black holes (ABHs) are well-known inefficient at low frequencies. However,
attaching periodic local resonators to form a metamaterial ABH (MMABH) plate could be …
attaching periodic local resonators to form a metamaterial ABH (MMABH) plate could be …
Vibroacoustic mitigation for a cylindrical shell coupling with an acoustic black hole plate using Gaussian expansion component mode synthesis
J Deng, N Gao, L Tang, H Hou, K Chen, L Zheng - Composite Structures, 2022 - Elsevier
In this paper, we consider a composite cylindrical shell having an internal thin plate. When
some ABHs are embedded on the interior floor, the vibration of the cylindrical shell and the …
some ABHs are embedded on the interior floor, the vibration of the cylindrical shell and the …
Subdivision surfaces—boundary element accelerated by fast multipole for the structural acoustic problem
L Chen, C Lu, W Zhao, H Chen… - Journal of Theoretical and …, 2020 - World Scientific
A novel boundary element method based on subdivision surfaces is applied to simulate
wave scattering problems governed by the Helmholtz equation. The Loop subdivision …
wave scattering problems governed by the Helmholtz equation. The Loop subdivision …
Energy density-based non-negative surface contributions in interior acoustics
Vibrating structures have received considerable critical attention as they radiate sound into
enclosures where it is amplified by reflections. Surface and panel contribution analyses …
enclosures where it is amplified by reflections. Surface and panel contribution analyses …
[HTML][HTML] Effect of boundary conditions in the experimental determination of structural damping
Building a digital twin representing the dynamical behaviour of a structure requires
knowledge of its material and geometrical properties. While geometry, mass and stiffness …
knowledge of its material and geometrical properties. While geometry, mass and stiffness …
A parallel and broadband Helmholtz FMBEM model for large-scale target strength modeling
The Fast Multipole Boundary Element Method (FMBEM) reduces the O (N 2) computational
and memory complexity of the conventional BEM discretized with N boundary unknowns, to …
and memory complexity of the conventional BEM discretized with N boundary unknowns, to …
Non-negative intensity for a heavy fluid-loaded stiffened plate
Localisation of sound sources on vibrating structures is a critical part of the design in many
engineering applications. In structures with stiffeners, so-called Bloch–Floquet waves are …
engineering applications. In structures with stiffeners, so-called Bloch–Floquet waves are …
[PDF][PDF] Efficient analysis of energy-based surface contributions for an entire acoustic cavity
Sound radiation from vibrating structures is a crucial concern in the vehicle design process.
One effective tool to recover vibration patterns on surfaces is the surface contribution …
One effective tool to recover vibration patterns on surfaces is the surface contribution …
Non-negative intensity for planar structures under stochastic excitation
Identification of regions on a vibrating structure which radiate energy to the far field is critical
in many areas of engineering. Non-negative intensity is a means to visualize contributions of …
in many areas of engineering. Non-negative intensity is a means to visualize contributions of …