Using state-space models for solving elastodynamic problems discretized by the MLPG method

被引：6

作者：

Abdollahifar, A. ^{[1
]}

Shafiei, A. R. ^{[1
]}

Mohyeddin, A. ^{[1
]}

Bozorg, M. ^{[1
]}

机构：

[1] Yazd Univ, Dept Mech Engn, Yazd, Iran

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2010年 / 34卷 / 08期

关键词：

Meshless local Petrov-Galerkin method; Moving least squares; Newmark method; Central difference method; State space method;

D O I：

10.1016/j.enganabound.2010.03.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One of the popular methods for solving ordinary differential equations is the state-space approach. In this paper, the use of the state-space method to analyze elastodynamic problems, discretized by the MLPG method, is proposed. Two methods commonly used in solving such problems, namely, the central difference method and the Newmark method, are compared with the proposed method. To examine the accuracy and the computational time of the new method, an example is studied. The results of the implementation of these methods are compared with a finite element solution. The results show that the state-space method saves substantial computational time for a given accuracy. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：721 / 726

页数：6

共 13 条

[1]

[Anonymous], 1995, FINITE ELEMENT PROCE

[2]

Atluri S. N., 1998, Computer Modeling and Simulation in Engineering, V3, P187

[3]

Atluri S.N., 2002, MESHLESS LOCAL PETRO

[4] A new meshless local Petrov-Galerkin (MLPG) approach in computational mechanics [J].