Abstract
The FE model updating of large-scale structures is usually time-consuming or even impossible. This paper proposes a dynamic condensation approach for model updating of large-scale structures. The eigensolutions are calculated from a condensed eigenequation and the eigensensitivities are calculated without selection of additional master DOFs, which is helpful to improve the efficiency of FE model updating. The proposed model updating method is applied to an eight-storey frame and the Jun Shan Yangtze Bridge. By employing the dynamic condensation approach, the number of iterations for the eigensensitivities is gradually increased according to the model updating process, which contributes to accelerate the convergence of model updating.
Original language | English |
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Journal | International Journal of Structural Stability and Dynamics |
DOIs | |
Publication status | Accepted/In press - 14 Dec 2017 |
Keywords
- dynamic condensation approach
- eigensensitivities
- eigensolutions
- Finite element model updating
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Aerospace Engineering
- Ocean Engineering
- Mechanical Engineering
- Applied Mathematics