Fast Floor Response Spectra Generation Technique

[+] Author and Article Information
M. J. Yan

Babcock & Wilcox, Nuclear Power Group, Nuclear Power Generation Division, Lynchburg, Va. 24505

J. Pressure Vessel Technol 105(1), 35-41 (Feb 01, 1983) (7 pages) doi:10.1115/1.3264237 History: Received January 25, 1982; Revised September 20, 1982; Online November 05, 2009


A consistent technique is derived for generating floor response spectra for equipment in nuclear reactor systems using response spectral analysis. The use of this technique eliminates the requirement for a time history analysis. The technique is based on the dynamic theory of coupling the supporting building with a very light spring-mass system representing the equipment. The response of the spring-mass system in the coupled systems is the floor response spectrum at the spring-mass system frequency. Resonant and off-resonant cases are derived separately. This technique is more efficient in the use of computer time than the conventional time history techniques. Moreover, a more realistic response spectrum is generated by this technique.

Copyright © 1983 by ASME
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