Analysis of Structural System Dynamic Model Updating Method

Mao Shaoqing
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Mao Shaoqing: Hebei Institute of Technology, Langfang, China

International Journal of Advanced Pervasive and Ubiquitous Computing (IJAPUC), 2013, vol. 5, issue 3, 66-74

Abstract: Model updating methods are successful in use of simulated data without noise, but inevitably lead to damaged uncorrelated noise levels and real experimental data, and it is often unpredictable. In this paper, the use of the frequency response function associated with re-analysis and updating of dynamic systems are proposed. Transformation matrix complexity and the normal frequency response function relationship between the structures are obtained. The transformation matrix is used to calculate the modified damping matrix of the system. The modified mass and stiffness matrices by using the least squares method is used to determine the frequency response function from the normal. A numerical example is tested to illustrate the applicability of the proposed method. The results show that this method is effective.

Date: 2013
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International Journal of Advanced Pervasive and Ubiquitous Computing (IJAPUC) is currently edited by Tao Gao

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