A finite element algorithm for reanalysis of structures with added degrees of freedom

B. S. Wu; C. W. Lim; Z. G. Li

doi:10.1016/j.finel.2004.01.004

Author(s)

B. S. Wu
C. W. Lim
Z. G. Li

Detail(s)

Original language	English
Pages (from-to)	1791-1801
Journal / Publication	Finite Elements in Analysis and Design
Volume	40
Issue number	13-14
Publication status	Published - Aug 2004

Link(s)

DOI	DOI https://doi.org/10.1016/j.finel.2004.01.004 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-3142643247&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(9ff3627c-854d-498e-8702-31a482919407).html

Abstract

This paper is focused on the reanalysis of structures with added degrees of freedom. By suitably partitioning the extended stiffness matrix, we present a preconditioned conjugate gradient algorithm to analyze the modified structure. The algorithm preserves the ease of implementation and improves significantly the quality of results. In particular, the algorithm can adaptively monitor the accuracy of approximate solutions. It is applicable to general finite element systems. The computational cost is significantly reduced. Numerical examples are given to show the effectiveness of the presented reanalysis algorithm. © 2004 Elsevier B.V. All rights reserved.

Research Area(s)

Finite element, Increase of degrees of freedom, Matrix partition, PCG algorithm, Static reanalysis

Citation Format(s)

[ RIS ] [ BibTeX ]

A finite element algorithm for reanalysis of structures with added degrees of freedom. / Wu, B. S.; Lim, C. W.; Li, Z. G.
In: Finite Elements in Analysis and Design, Vol. 40, No. 13-14, 08.2004, p. 1791-1801.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Wu, BS, Lim, CW & Li, ZG 2004, 'A finite element algorithm for reanalysis of structures with added degrees of freedom', Finite Elements in Analysis and Design, vol. 40, no. 13-14, pp. 1791-1801. https://doi.org/10.1016/j.finel.2004.01.004

Wu, B. S., Lim, C. W., & Li, Z. G. (2004). A finite element algorithm for reanalysis of structures with added degrees of freedom. Finite Elements in Analysis and Design, 40(13-14), 1791-1801. https://doi.org/10.1016/j.finel.2004.01.004

Wu BS, Lim CW, Li ZG. A finite element algorithm for reanalysis of structures with added degrees of freedom. Finite Elements in Analysis and Design. 2004 Aug;40(13-14):1791-1801. doi: 10.1016/j.finel.2004.01.004

Wu, B. S. ; Lim, C. W. ; Li, Z. G. / A finite element algorithm for reanalysis of structures with added degrees of freedom. In: Finite Elements in Analysis and Design. 2004 ; Vol. 40, No. 13-14. pp. 1791-1801.