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논문 기본 정보

자료유형
학술저널
저자정보
전법규 (부산대학교) 손호영 (경희대학교) 임승현 (경북대학교) 최인길 (한국원자력연구원) 주부석 (경희대학교)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제7호
발행연도
2021.7
수록면
2,387 - 2,395 (9page)
DOI
https://doi.org/10.1016/j.net.2021.01.003

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초록· 키워드

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Seismic qualifications of electrical equipment, such as cabinet systems, have been emerging as the keyarea of nuclear power plants in Korea since the 2016 Gyeongju earthquake, including the high-frequencydomain. In addition, electrical equipment was sensitive to the high-frequency ground motions during thepast earthquake. Therefore, this paper presents the rocking behavior of the electrical cabinet systemsubjected to Reg. 1.60 and UHS. The high fidelity finite element (FE) model of the cabinet related to theshaking table test data was developed. In particular, the first two global modes of the cabinet from theexperimental test were 16 Hz and 24 Hz, respectively. In addition, 30.05 Hz and 37.5 Hz were determinedto be the first two local modes in the cabinet. The high fidelity FE model of the cabinet using the ABAQUSplatform was extremely reconciled with shaking table tests. As a result, the dynamic properties of thecabinet were sensitive to electrical instruments, such as relays and switchboards, during the shakingtable test. In addition, the amplification with respect to the vibration transfer function of the cabinet wasobserved on the third floor in the cabinet due to localized impact corresponding to the rocking phenomenonof the cabinet under Reg.1.60 and UHS. Overall, the rocking of the cabinet system can be causedby the low-frequency oscillations and higher peak horizontal acceleration.

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