Seismic response analysis of nuclear reactor internals

Jong Beom Park, No Cheol Park, Jinsung Kim, Woo Jin Roh

Research output: Contribution to conferencePaper

Abstract

Nuclear power generation system is one of the important energy generation systems. However, when an accident caused by external forces such as earthquakes occur, the nuclear power plant can lead to critically detrimental effects. Thus, researchers have to design the nuclear reactor internals that can endure the external forces. To do this, seismic responses of nuclear reactor internals should be identified. In this research, the seismic response analysis was performed via finite element model. The dynamic characteristics of reactor internal structures were verified by modal experiments of scaled-down model and scale similarity analysis. The 3-D finite element model was designed to reflect the dynamic characteristics. That model was simplified to beam element model in order to perform seismic analysis. Finally, seismic responses of reactor internals were calculated by the beam model.

Original languageEnglish
Publication statusPublished - 2015 Jan 1
Event44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015 - San Francisco, United States
Duration: 2015 Aug 92015 Aug 12

Other

Other44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015
CountryUnited States
CitySan Francisco
Period15/8/915/8/12

Fingerprint

nuclear reactors
dynamic characteristics
nuclear electric power generation
reactors
nuclear power plants
accidents
earthquakes

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Park, J. B., Park, N. C., Kim, J., & Roh, W. J. (2015). Seismic response analysis of nuclear reactor internals. Paper presented at 44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015, San Francisco, United States.
Park, Jong Beom ; Park, No Cheol ; Kim, Jinsung ; Roh, Woo Jin. / Seismic response analysis of nuclear reactor internals. Paper presented at 44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015, San Francisco, United States.
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Park, JB, Park, NC, Kim, J & Roh, WJ 2015, 'Seismic response analysis of nuclear reactor internals', Paper presented at 44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015, San Francisco, United States, 15/8/9 - 15/8/12.

Seismic response analysis of nuclear reactor internals. / Park, Jong Beom; Park, No Cheol; Kim, Jinsung; Roh, Woo Jin.

2015. Paper presented at 44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015, San Francisco, United States.

Research output: Contribution to conferencePaper

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AB - Nuclear power generation system is one of the important energy generation systems. However, when an accident caused by external forces such as earthquakes occur, the nuclear power plant can lead to critically detrimental effects. Thus, researchers have to design the nuclear reactor internals that can endure the external forces. To do this, seismic responses of nuclear reactor internals should be identified. In this research, the seismic response analysis was performed via finite element model. The dynamic characteristics of reactor internal structures were verified by modal experiments of scaled-down model and scale similarity analysis. The 3-D finite element model was designed to reflect the dynamic characteristics. That model was simplified to beam element model in order to perform seismic analysis. Finally, seismic responses of reactor internals were calculated by the beam model.

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Park JB, Park NC, Kim J, Roh WJ. Seismic response analysis of nuclear reactor internals. 2015. Paper presented at 44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015, San Francisco, United States.