Many names of the Trefftz method

JA Kołodziej, JK Grabski - Engineering Analysis with Boundary Elements, 2018 - Elsevier
The Trefftz method is understood as an approximate method for solving boundary value
problems in which the approximate solution is a linear combination of trial functions …

Exact free vibration analysis for membrane assemblies with general classical boundary conditions

X Liu, X Zhao, C Xie - Journal of Sound and Vibration, 2020 - Elsevier
This paper proposes exact dynamic stiffness formulations for membranes and their
assemblies under any arbitrary classical boundary conditions. First, by taking exact solutions …

Exact solution for free vibration analysis of an eccentric elliptical plate

SM Hasheminejad, A Ghaheri - Archive of Applied Mechanics, 2014 - Springer
The method of separation of variables in elliptical coordinates in conjunction with the
translational addition theorems for Mathieu functions is used to investigate the free flexural …

A semi-analytical method for near-trapped mode and fictitious frequencies of multiple scattering by an array of elliptical cylinders in water waves

JT Chen, JW Lee - Physics of Fluids, 2013 - pubs.aip.org
In this paper, we focus on the water wave scattering by an array of four elliptical cylinders.
The null-field boundary integral equation method (BIEM) is used in conjunction with …

Application of the error estimation technique in the method of fundamental solutions for solving incident wave problem with multiple cylinders

KH Chen, YH Hsu, JH Kao - Ocean Engineering, 2023 - Elsevier
This article attempts to solve the problem of oblique incident wave with multiple cylinders
using the method of fundamental solutions (MFS) combined with a proposed error …

Natural mode analysis of an acoustic cavity with multiple elliptical boundaries by using the collocation multipole method

WM Lee - Journal of Sound and Vibration, 2011 - Elsevier
This paper presents a semi-analytical approach to solve the eigenproblem of an acoustic
cavity with multiple elliptical boundaries. To satisfy the Helmholtz equation in the elliptical …

A new error estimation technique for solving torsion bar problem with inclusion by using BEM

KH Chen, JH Kao, JT Chen, JF Liau - Engineering Analysis with Boundary …, 2020 - Elsevier
In this paper, the torsion problem is analyzed by boundary element method (BEM). After
applying a new error estimation technique in the BEM, we can derive the numerical error of …

Acoustic scattering by multiple elliptical cylinders using collocation multipole method

WM Lee - Journal of Computational Physics, 2012 - Elsevier
This paper presents the collocation multipole method for the acoustic scattering induced by
multiple elliptical cylinders subjected to an incident plane sound wave. To satisfy the …

Acoustic eigenproblems of elliptical cylindrical cavities with multiple elliptical cylinders by using the collocation multipole method

WM Lee - International Journal of Mechanical Sciences, 2014 - Elsevier
Acoustic eigenproblems of 3-D elliptical cylindrical cavities having multiple elliptical
cylinders are solved by means of a 3-D semi-analytical formulation based on a multipole …

Conservative schemes and degenerate scale problems in the null-field method for Dirichlet problems of Laplace's equation in circular domains with circular holes

MG Lee, ZC Li, HT Huang, JY Chiang - Engineering Analysis with …, 2013 - Elsevier
Recently, the null-field method (NFM) has been proposed by Chen and his co-researchers
for solving boundary value problems involving circular domains with circular holes. The …