The enriched quadrilateral overlapping finite elements for time-harmonic acoustics
Q Gui, W Li, Y Chai - Applied Mathematics and Computation, 2023 - Elsevier
The pronounced numerical dispersions and numerical anisotropy make solutions from the
finite element model using low-order elements unreliable for the time-harmonic acoustic …
finite element model using low-order elements unreliable for the time-harmonic acoustic …
The extrinsic enriched finite element method with appropriate enrichment functions for the Helmholtz equation
Y Chai, K Huang, S Wang, Z Xiang, G Zhang - Mathematics, 2023 - mdpi.com
The traditional finite element method (FEM) could only provide acceptable numerical
solutions for the Helmholtz equation in the relatively small wave number range due to …
solutions for the Helmholtz equation in the relatively small wave number range due to …
The edge-based smoothed FEM with ρ∞-Bathe implicit temporal discretization scheme for the analyses of underwater wave propagation problems
Y Chai, S Wang, Y Wang, W Li, K Huang, Q Zhang - Ocean Engineering, 2023 - Elsevier
The underwater acoustic wave propagation problem is an important issue in ocean
engineering field. The classical finite element approach with edge-based smoothed gradient …
engineering field. The classical finite element approach with edge-based smoothed gradient …
The meshfree radial point interpolation method (RPIM) for wave propagation dynamics in non-homogeneous media
C Liu, S Min, Y Pang, Y Chai - Mathematics, 2023 - mdpi.com
This work presents a novel simulation approach to couple the meshfree radial point
interpolation method (RPIM) with the implicit direct time integration method for the transient …
interpolation method (RPIM) with the implicit direct time integration method for the transient …
Meshless generalized finite difference method for two-and three-dimensional transient elastodynamic analysis
In this paper, a meshless collocation method is introduced for two-dimensional (2D) and
three-dimensional (3D) transient elastodynamic problems by applying the generalized finite …
three-dimensional (3D) transient elastodynamic problems by applying the generalized finite …
Improved modal analyses using the novel quadrilateral overlapping elements
Q Gui, W Li, Y Chai - Computers & Mathematics with Applications, 2024 - Elsevier
In this work, the novel quadrilateral overlapping element incorporated with the harmonic
trigonometric functions is presented to reduce the efforts in mesh division for modal analysis …
trigonometric functions is presented to reduce the efforts in mesh division for modal analysis …
A fast singular boundary method for the acoustic design sensitivity analysis of arbitrary two-and three-dimensional structures
This paper proposes a fast meshless scheme for acoustic sensitivity analysis by using the
Burton–Miller-type singular boundary method (BM-SBM) and recursive skeletonization …
Burton–Miller-type singular boundary method (BM-SBM) and recursive skeletonization …
Acoustic sensitivity analysis for 3D structure with constant cross-section using 2.5 D singular boundary method
X Wei, X Cheng, D Chen, S Chen, H Zheng… - Engineering Analysis with …, 2023 - Elsevier
Abstract In this paper, a 2.5 D singular boundary method (SBM) in conjunction with the direct
differentiation method (DDM) and adjoint variable method (AVM) are formulated for the …
differentiation method (DDM) and adjoint variable method (AVM) are formulated for the …
A boundary point interpolation method for acoustic problems with particular emphasis on the calculation of Cauchy principal value integrals
L Chen, X Li - Computers & Structures, 2024 - Elsevier
A boundary point interpolation method (BPIM) is presented in this paper for numerical
solving acoustic problems. The BPIM is a boundary-type meshless method that combines …
solving acoustic problems. The BPIM is a boundary-type meshless method that combines …
Transient analyses of underwater acoustic propagation with the modified meshfree radial point interpolation method and newmark time integration techniques
H Xue, X Zhang, J Cheng - Ocean Engineering, 2024 - Elsevier
Underwater acoustic propagation plays a very important role in underwater communication
and ocean engineering field. The radial point interpolation method (RPIM) is an effective …
and ocean engineering field. The radial point interpolation method (RPIM) is an effective …