نتایج جستجو برای: spectral element method

تعداد نتایج: 1898930  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1371

the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...

and M.M. Saadatpour, M. Azhari, S. Hatami,

Based on classical plate theory, standard and spectral finite element methods are extended for vibration and dynamic stability of axially moving thin plates subjected to in-plane forces. The formulation of the standard method earned through Hamilton’s principle is independent of element type. But for solving numerical examples, an isoparametric quadrilateral element is developed using Lagrange ...

and M.M. Saadatpour, M. Azhari, S. Hatami,

Based on classical plate theory, standard and spectral finite element methods are extended for vibration and dynamic stability of axially moving thin plates subjected to in-plane forces. The formulation of the standard method earned through Hamilton’s principle is independent of element type. But for solving numerical examples, an isoparametric quadrilateral element is developed using Lagrange ...

2005
JIE SHEN D. B. XIU

In this paper, a triangular spectral element method using orthogonal rational functions as basis is presented for problems on complex domains.

1995
Christine Bernardi

Dans le cadre de la discrétisation paréléments spectraux d'uné equation ellip-tique modèle du second ordre, on effectue l'analyse numérique d'indicateurs d'erreur basés sur le résidu de l'´ equation. Les résultats obtenus sont optimaux en dimension 1 mais non en dimension supérieure. Abstract: In the framework of the spectral element method for a model elliptic equation, we present the numerica...

M.R Bahrami S Hatami,

In the present study, a spectral finite element method is developed for free and forced transverse vibration of Levy-type moderately thick rectangular orthotropic plates based on first-order shear deformation theory. Levy solution assumption was used to convert the two-dimensional problem into a one-dimensional problem. In the first step, the governing out-of-plane differential equations are tr...

2006
Salim Meddahi Francisco-Javier Sayas

We present a numerical method, based on a coupling of finite elements and boundary elements, to solve a fluid–solid interaction problem posed in the plane. The boundary unknowns involved in our formulation are approximated by a spectral method. We provide error estimates for the Galerkin method and present numerical results that illustrate the accuracy of our scheme.

Journal: :Journal of Theoretical and Computational Acoustics 2020

Journal: :Computer Methods in Applied Mechanics and Engineering 2018

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