Transient Characteristics of Simple Systems to Modulated Random Noise

[+] Author and Article Information
R. L. Barnoski, J. R. Maurer

Computer Sciences Corporation, Mountain View, Calif.

J. Appl. Mech 40(1), 73-77 (Mar 01, 1973) (5 pages) doi:10.1115/1.3422975 History: Received September 01, 1971; Revised March 01, 1972; Online July 12, 2010


Discussed are the mean-square response exceedance characteristics of a single-tuned system to amplitude modulated noise. The results bear on the accuracy of spectral estimates of nonstationary data, and subsequently, relate directly to the design, analysis, and testing of structural systems in environments as gusts, earthquakes, and ignition transients. For noise correlated as an exponentially damped cosine, the nonstationary response may exceed its stationary value by a factor in excess of two. A time-varying shaping filter explanation is offered for this behavior. For white noise, such exceedances do not occur.

Copyright © 1973 by ASME
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