Recovery of Modal Information From a Beam Undergoing Random Vibration

[+] Author and Article Information
W. W. Parmenter, R. G. Christiansen

Naval Weapons Center, China Lake, Calif.

J. Eng. Ind 96(4), 1307-1313 (Nov 01, 1974) (7 pages) doi:10.1115/1.3438511 History: Received July 31, 1973; Online July 15, 2010


An organized approach for implementing the techniques of random process theory in the recovery of structural information from random vibration data is presented. The boundaries of various configured Bernoulli-Euler like beams are subjected to random vibrations and the acceleration response of these beams is measured and recorded. The Fast Fourier Transform (FFT) makes the use of random process theory both a feasible and economical tool for experimental structural analysis.

Copyright © 1974 by ASME
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