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- W2352807770 abstract "A modified algorithm is proposed for the model parameterization method based on the sensitivity of response force vectors.Against the finite element model of linear structures and based on the tested responses in time domain,the modified algorithm was established to identify structural physical parameters on the element level.Through introducing a floating-point calculation index of Flop,the computing efficiencies of both the modified algorithm and the original method were quantitatively analyzed.The parametric identification of a large spatial shell composed of spatial beam elements was numerically simulated,and the identification efficiencies of both the modified algorithm and the original method in the same computing environment were compared.The results show that the computing efficiency of the modified algorithm is increased by about 30 times while the identification accuracy of 100% is guaranteed in the case of no noise,and the structural parameters in the condition of unknown inputs may be effectively identified using the modified algorithm.A conclusion is given that the modified algorithm is not only able to improve the computing efficiency of parameter identification,but also easy to extend to the parameter identification in the case of unknown inputs,therefore it is well suitable for the parameter identification of large structures." @default.
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- W2352807770 date "2009-01-01" @default.
- W2352807770 modified "2023-09-23" @default.
- W2352807770 title "A modified algorithm of model parameterization method" @default.
- W2352807770 hasPublicationYear "2009" @default.
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