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Appl. Sci. 2017, 7(10), 1039; doi:10.3390/app7101039

A Kriging Model Based Finite Element Model Updating Method for Damage Detection

1
Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116000, China
2
School of Engineering, University of Liverpool, Liverpool L69 3BX, UK
3
School of Civil Engineering, Dalian University of Technology, Dalian 116000, China
*
Author to whom correspondence should be addressed.
Received: 29 August 2017 / Accepted: 1 October 2017 / Published: 11 October 2017
(This article belongs to the Section Mechanical Engineering)
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Abstract

Model updating is an effective means of damage identification and surrogate modeling has attracted considerable attention for saving computational cost in finite element (FE) model updating, especially for large-scale structures. In this context, a surrogate model of frequency is normally constructed for damage identification, while the frequency response function (FRF) is rarely used as it usually changes dramatically with updating parameters. This paper presents a new surrogate model based model updating method taking advantage of the measured FRFs. The Frequency Domain Assurance Criterion (FDAC) is used to build the objective function, whose nonlinear response surface is constructed by the Kriging model. Then, the efficient global optimization (EGO) algorithm is introduced to get the model updating results. The proposed method has good accuracy and robustness, which have been verified by a numerical simulation of a cantilever and experimental test data of a laboratory three-story structure. View Full-Text
Keywords: model updating; frequency response function; Kriging model; damage detection model updating; frequency response function; Kriging model; damage detection
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yang, X.; Guo, X.; Ouyang, H.; Li, D. A Kriging Model Based Finite Element Model Updating Method for Damage Detection. Appl. Sci. 2017, 7, 1039.

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