期刊
COMPUTERS & STRUCTURES
卷 156, 期 -, 页码 149-159出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2015.05.003
关键词
Finite element model updating; Parameter selection; Gaussian process model; Variance-based global sensitivity analysis; Optimization
A residual-based Gaussian process model (GPM) framework is proposed for finite element model updating (FEMU). The core idea of the proposed method is that GPM is adopted to characterize the relationship between the residual and the selected parameters. Within the residual-based GPM framework, the powerful variance-based global sensitivity analysis can be analytically implemented for parameter selection, and the rate of convergence of the optimization process is accelerated substantially by providing the analytical gradient and Hessian information. A real-world arch bridge is presented to illustrate the proposed residual-based GPM framework and verify its feasibility in FEMU. (C) 2015 Elsevier Ltd. All rights reserved.
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