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- W3131650888 abstract "Abstract Based on the theory of singular-value decomposition and the matrix approximation technique, an analytical model updating method using the identified model parameters is developed. Firstly, The identified modal matrix is decomposed by means of singular-value decomposition technique. The general updating equations for the analytical model are obtained according to the decomposition results, the eigenequation of the system, and the modal orthogonality relations. Secondly, the best matrix approximation solution for the updating equations is definited. The existence and uniqueness of the best approximation relative to the analytical model are studied. The concrete form of the best modification and two algorithms are presented. Examples demonstrate that the analytical model modification method developed in this paper possesses high modificatory accuracy comparing with some other methods. The method possesses the ability to modify the large error models." @default.
- W3131650888 created "2021-03-01" @default.
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- W3131650888 date "1997-09-14" @default.
- W3131650888 modified "2023-09-27" @default.
- W3131650888 title "A Singular-Value Decomposition Method for Updating the Analytical Model" @default.
- W3131650888 doi "https://doi.org/10.1115/detc97/vib-4152" @default.
- W3131650888 hasPublicationYear "1997" @default.
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