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

✍ Scribed by M. Kadkhodayan; J. Alamatian; G. J. Turvey

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
320 KB
Volume
74
Category
Article
ISSN
0029-5981

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✦ Synopsis

Abstract

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 Β© 2007 John Wiley & Sons, Ltd.

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