A comparison of several reanalysis methods for structural layout modifications with added degrees of freedom
作者： Z. G. Li , C. W. Lim , B. S. Wu
DOI: 10.1007/S00158-007-0179-2
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摘要: The goal of this paper is to compare several reanalysis methods for structural layout modifications with added degrees freedom. These include the modified initial analysis methods, analyses method a scalar multiplier, and preconditioned conjugate gradient method. are compared in terms condition numbers system their computational accuracy. It concluded that preconditioner first not positive definite general, while second small multiplier can be obtained, but number still large. For third method, significantly reduced, highly accurate approximate solutions obtained few iterations.
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