Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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A Time-Domain Method to Generate Artificial Time History from a Given Reference Response Spectrum

  • Shin, Gangsig (Korea Institute of Nuclear Safety) ;
  • Song, Ohseop (Department of Mechanical Engineering, Chungnam National University)
  • Received : 2015.10.14
  • Accepted : 2016.01.25
  • Published : 2016.06.25
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Abstract

Seismic qualification by test is widely used as a way to show the integrity and functionality of equipment that is related to the overall safety of nuclear power plants. Another means of seismic qualification is by direct integration analysis. Both approaches require a series of time histories as an input. However, in most cases, the possibility of using real earthquake data is limited. Thus, artificial time histories are widely used instead. In many cases, however, response spectra are given. Thus, most of the artificial time histories are generated from the given response spectra. Obtaining the response spectrum from a given time history is straightforward. However, the procedure for generating artificial time histories from a given response spectrum is difficult and complex to understand. Thus, this paper presents a simple time-domain method for generating a time history from a given response spectrum; the method was shown to satisfy conditions derived from nuclear regulatory guidance.

Keywords

References

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