According to the problem of structural dynamic topological reanalysis for continuous two modifications, a new method for dynamic reanalysis of topological modified structure with added degrees and two continuous modifications was proposed in this paper, which is combined independent mass orthogonalization strategy, the pseudo-random numbers initialization method of eigenvector with Rayleigh-Ritz analysis and. Comparing with the direct finite element analysis, a lots of computational cost can be reduced by this method, which is also easy to operate and implement. The numerical example shows that the proposed method for dynamic topological reanalysis of twice continuous modifications is effective and high- precision.
Key words
twice continuous modifications /
dynamic topological reanalysis /
pseudo-random /
mass orthogonalization /
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References
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