A new fictitious time for the dynamic relaxation (DXDR) method

被引：42

作者：

Kadkhodayan, A. ^{[2
]}

Alamatian, J. ^{[3
]}

Turvey, G. J. ^{[1
]}

机构：

[1] Univ Lancaster, Dept Engn, Lancaster LA1 4YR, England

[2] Univ Ferowsi, Dept Mech Engn, Mashhad 91775, Iran

[3] Univ Ferowsi, Dept Civil Engn, Mashhad 91775, Iran

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 2008年 / 74卷 / 06期

关键词：

convergence rank; dynamic relaxation (DR); fictitious time increment; residual force; structural analysis;

D O I：

10.1002/nme.2201

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper addresses the development of the DXDR method by introducing a modified fictitious time (MFT) increment. The MFT is determined by minimizing the residual force after each iteration. The rank of the convergence rate shows the advantage of the new method. The results obtained from plate and truss analyses demonstrate the potential of the new method. It is shown that, compared with a unit fictitious time, the MFT is more efficient, especially during the initial iterations. Moreover, MFT does not impose any additional constraints on the DXDR method. Copyright (C) 2007 John Wiley & Sons, Ltd.

引用

页码：996 / 1018

页数：23

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