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http://dx.doi.org/10.5000/EESK.2008.12.5.057

Seismic Response Prediction Method of Cabinet Structures in a Nuclear Power Plant Using Vibration Tests  

Koo, Ki-Young (KAIST 스마트사회기반시설 연구센터)
Cui, Jintao (군산대학교 토목환경공학부)
Cho, Sung-Gook ((주)제이스코리아 기술연구소)
Kim, Doo-Kie (군산대학교 토목환경공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.12, no.5, 2008 , pp. 57-63 More about this Journal
Abstract
This paper presents a seismic response prediction method using vibration tests of cabinet-type electrical equipment installed in a nuclear power plant. The proposed method consists of three steps: 1) identification of earthquake-equivalent forces based on lumped-mass system idealization, 2) identification of a state-space-equation model relating input-output measurements obtained from the vibration tests, 3) seismic prediction using the identified earthquake-equivalent forces and the identified state-space-equation. The proposed method is advantageous compared to other methods based on FEM (finite element method) model update, since the proposed method is not influenced by FEM modeling errors. Through a series of numerical verifications on a frame model and 3-dimensional shell model, it was found that the proposed method could be used to accurately predict the seismic responses, even under considerable measurement noise conditions. Experimental validation is needed for further study.
Keywords
seismic response prediction; cabinet structures; vibration tests; subspace identification method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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