Model Updating and Damage Detection Using Cross Model Cross Mode Method for 3D Frame Structures

Abstract:

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For the health monitoring of civil structures, the study of finite element model updating or damage detection mainly focuses on undamped systems. Thus, their objective has been exclusively restricted to the correction of the mass and stiffness matrices. In contrast, this paper performs the model updating and damage detection for damped structures. A theoretical contribution of this paper is to extend the cross-model cross-mode (CMCM) method to simultaneously update the mass, damping and stiffness matrices of a finite element model when only few spatially incomplete, complex-valued modes are available. Numerical studies are conducted for a five-story frame structure with multiple damaged elements. The numerical results reveal that applying the CMCM method, together with an iterative Guyan reduction scheme, can yield good damage detection in general.

Info:

Periodical:

Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li

Pages:

5369-5373

DOI:

10.4028/www.scientific.net/AMR.243-249.5369

Citation:

F. S. Liu et al., "Model Updating and Damage Detection Using Cross Model Cross Mode Method for 3D Frame Structures", Advanced Materials Research, Vols. 243-249, pp. 5369-5373, 2011

Online since:

May 2011

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Price:

$35.00

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