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 …
FEM-BEM analysis of acoustic interaction with submerged thin-shell structures under seabed reflection conditions
The paper introduces a novel method for simulating acoustic–shell interaction subject to
seabed reflection. The vibration of thin-shell structure is analyzed using the finite element …
seabed reflection. The vibration of thin-shell structure is analyzed using the finite element …
Bi-material topology optimization for fully coupled structural-acoustic systems with isogeometric FEM–BEM
This paper presents a novel method for topology optimization of vibrating structures
interacted with acoustic wave for the purpose of minimizing radiated sound power level. We …
interacted with acoustic wave for the purpose of minimizing radiated sound power level. We …
Broadband vibroacoustic reduction for a circular beam coupled with a curved acoustic black hole via nullspace method
J Deng, N Gao - International Journal of Mechanical Sciences, 2022 - Elsevier
Add-on acoustic black holes (ABHs) tend to be popular in recent years because it is not
mandatory to diminish the thickness of the host structure. Instead, ABHs are treated as …
mandatory to diminish the thickness of the host structure. Instead, ABHs are treated as …
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 …
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 …
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 …