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- W2389837941 abstract "In order to improve the computational efficiency of nonlinear dynamics of large complicated structures,synthesis method of linear-nonlinear mixed constrained mode has been presented based on the existence of local plastic regions in the structure.Components in the system that could not get into nonlinear stage easily under loading were defined as linear substructures while the local components that were in the plastic deformation stage were defined as nonlinear substructures.Degree of freedom of linear substructures was reduced through coordinate transformation and linear substructures were finally synthesized with nonlinear substructures,so that the computational cost was lowered and the nonliear characteristics of the structures were taken into consideration reasonably,which is an effective solution to the nonliear dynamic problem of large and complicated structures.In addition,the mode cut-off criterion for constrained mode synthesis method has been presented on the basis of potential energy criterion,in which the optimum mode cut-off number of the substructure is drawn from the convergence of potential energy criterion.The linearnonlinear mixed constrained mode synthesis method proposed and the mode cut-off criterion have been applied to nonlinear seismic response analysis of soil and multi-story building interactions.In comparison with the direct-finite-element-method,the proposed method performs better in computational efficiency and precision and the mode cut-off criterion on the basis of potential energy criterion is effective for the mixed constrained mode synthesis method." @default.
- W2389837941 created "2016-06-24" @default.
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- W2389837941 date "2010-01-01" @default.
- W2389837941 modified "2023-09-27" @default.
- W2389837941 title "Synthesis Method of Linear-Nonlinear Mixed Constrained Mode and Its Application" @default.
- W2389837941 hasPublicationYear "2010" @default.
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