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http://dx.doi.org/10.5574/KSOE.2012.26.5.011

Damage Detection Using Finite Element Model Updating  

Min, Cheon-Hong (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology)
Choi, Jong-Su (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology)
Hong, Sup (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology)
Kim, Hyung-Woo (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology)
Yeu, Tae-Kyeong (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology)
Publication Information
Journal of Ocean Engineering and Technology / v.26, no.5, 2012 , pp. 11-17 More about this Journal
Abstract
In this study, a damage detection method that uses sensitivity-based finite (FE) element model updating with the natural frequency and zero frequency was proposed. The stiffness matrix for a structure was modified using the sensitivity-based FE model updating method. A sensitivity analysis was used to update the FE model, and the natural frequencies and zero frequencies were considered as target parameters to supplement the information on the vibration characteristics. The locations and values of the damages were estimated from the modified stiffness matrix. Several numerical examples were considered to verify the performance of the proposed method.
Keywords
FE model updating; Damage detection; Zero frequency; Riser;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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