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- W75775995 abstract "Abstract : A stochastic finite element method (SFEM) has been applied to the mid-frequency vibration analysis of complex structural systems. A frequency domain model reduction strategy is devised using tae energy operator approach. The dominant eigen-subspace of the energy operator adapted to a specified frequency band allows the construction of a reduced model using the Ritz-Galerkin procedure. Once an efficient reduced model is constructed, the system parameter uncertainty is performed using SFEM approach. The approach allows significant computational efficiency in performing system parameter uncertainty analysis. The SFEM approach utilized is based on an integration of the Karhunen-Loeve and the Polynomial chaos expansions with the energy operator methodology." @default.
- W75775995 created "2016-06-24" @default.
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- W75775995 date "2003-02-01" @default.
- W75775995 modified "2023-09-26" @default.
- W75775995 title "Numerical Analysis of Stochastic Dynamical Systems in the Medium-Frequency Range" @default.
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