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RESEARCH PAPERS

Time Interval Damage Potential of Seismic Testing Waveforms

[+] Author and Article Information
D. T. Tang

Structural Technology, Westinghouse Electric Corporation, Plant Engineering Division, Pittsburgh, Pa. 15230

D. Li

Testing of Systems and Services, Westinghouse Electric Corporation, Plant Engineering Division, Pittsburgh, Pa. 15230

J. Pressure Vessel Technol 107(4), 373-379 (Nov 01, 1985) (7 pages) doi:10.1115/1.3264470 History: Received September 25, 1984; Revised January 29, 1985; Online November 05, 2009

Abstract

The concept of time interval response spectrum is introduced for characterizing the damage potential or the likelihood of a waveform to cause multiple mode response. By modifying slightly a typical response spectrum calculation routine the Weighted Spectrum Mean (WSM) is determined by evaluating the area under a normalized spectrum curve. A more detailed delineation of the response peaks statistics of simple oscillators results in the development of a Damage Potential Index (DPI). Both WSM and DPI are utilized to quantify damage potential for a variety of waveforms including free field motion and recorded testing motions. The results suggest that a useful tool has been established with only a small added effort to help design, predict, or analyze the damage potential of testing waveforms for seismic operability qualification of equipment.

Copyright © 1985 by ASME
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