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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 1,658 - 1,668 (11page)
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2019
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Nuclear power generates a large portion of the energy used today and plays an important role in energydevelopment. To ensure safe nuclear power generation, it is essential to conduct an accurate analysis ofreactor structural integrity. Accordingly, in this study, a methodology for obtaining accurate structuralresponses to the combined seismic and reactor coolant loads existing prior to the shutdown of a nuclearreactor is proposed. By applying the proposed analysis method to the reactor vessel internals, it ispossible to derive the seismic responses considering the influence of the hydraulic loads present duringoperation for the first time. The validity of the proposed methodology is confirmed in this research byusing the finite element method to conduct seismic and hydraulic load analyses of the advancedAPR1400 1400 MWe power reactor, one of the commercial reactors. The structural responses to thecombined applied loads are obtained using displacement-based and stress-based superpositionmethods. The safety of the subject nuclear reactor is then confirmed by analyzing the design marginaccording to the American Society for Mechanical Engineers (ASME) evaluation criteria, demonstratingthe promise of the proposed analysis method.
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