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Seismic Qualification of Electrical Cabinet Using High-Fidelity Simulation under High Frequency Earthquakes 게시글의 제목, 학술지명, 저자, 발행일, 작성내용을 보여줌
Seismic Qualification of Electrical Cabinet Using High-Fidelity Simulation under High Frequency Earthquakes
학술지명 sustainability 저자 손호영,박성완,전법규,정우영,최종웅,주부석
발표일 2020-09-29

Most nuclear and nonnuclear power plants have been designed in the frequency range
of 2 to 10 Hz, but now, the design guidelines for structural and nonstructural components such as
electrical cabinets must be improved by including high frequency greater than 10 Hz for sustainable
energy. The electrical cabinet is the essential piece of equipment for safety functions and the
uncertainty of seismic capability in power plants. Consequently, the attention of this study focused
on evaluating the seismic demands of the electrical cabinet under high frequency earthquakes and
also, seismic qualification of the electrical cabinet using the identification of experimental tests and
numerical models. An experimental test based on ICC-ES AC 156 and IEEE std.344 was conducted
for seismic qualification of the cabinet and then, a high-fidelity finite element model to capture the
significant deformation was developed in this study. It is observed that the fundamental frequencies
were 16 and 24 Hz from the experimental tests, respectively. In order to verify the proposed
high-fidelity simulation model, the target fundamental frequencies of the cabinet were evaluated in
the ABAQUS platform. It was interesting to note that the reconciliation of experimental and analytical
results was extremely identical. Furthermore, in order to evaluate seismic response characteristics of
the cabinet subjected to high and low frequency earthquakes, time history analysis was conducted
in this study, using the ABAQUS platform. As a result, the observation showed that the seismic
response of the cabinet system under a high frequency earthquake was relatively higher than that
of low frequency. It can be very important to note that the cabinet system was sensitive to high
frequency vibration.

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