On the role of cross-correlations in the random vibrations of shells

Author Type

Faculty

College

Engineering and Computer Science

Department

Ocean and Mechanical Engineering

Document Type

Article

Publication/Event/Conference Title

Journal of Sound and Vibration

Publication Status

Version of Record

Abstract

Theoretical and numerical results are presented for the investigation of the role of cross-correlations in random shell vibration problems. The conditions of negligibility of the cross-terms are derived for a shell with hysteretic damping. It is shown that for a spherically curved panel omission of cross-correlations leads to an incorrect estimate of the mean square of displacements. This is due to closeness of the eigenfrequencies at the low end of the frequency domain and the consequent high modal density. © 1977.

First Page

239

Last Page

252

DOI

10.1016/0022-460X(77)90358-3

Publication Date

1-22-1977

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