Description: The objective of this study is to generate a number of artificial-spectrum consistent-time histories for use in the seismic analysis of the Gas Centrifuge Enrichment Plant (GCEP) service modules (SM). The method used in the generation of the artificial time histories presented in this report makes use of the fast Fourier transform (FFT) algorithm to modify the Fourier frequency spectrum of a recorded accelerogram. The response spectrum of the generated accelerogram is consistent with the spectrum specification given by USAEC Regulatory Guide 1.60. Five statistically independent time histories have been developed. These accelerograms are based on recorded West Coast accelerations that meet specific requirements associated with the location of the recording station with regard to the epicenter. The acceleration time history, Fourier and response spectras, and integrated velocity and displacement records are presented.
Date: July 1, 1979
Creator: Aramayo, G.A. & Carley, T.G.
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