Nonlinear Response of Double-Wall Cylindrical Shell Vibrations under Random Excitation
Publication: Journal of Aerospace Engineering
Volume 19, Issue 1
Abstract
An analytical model is presented to predict the nonlinear response of a double-wall sandwich cylindrical shell system subjected to random excitation. Nonlinear spring-dashpot models are integrated into the system to characterize the behavior of the soft core. Donnell’s thin shell theory is used to develop the governing nonlinear equations of motion. A Monte Carlo simulation of stationary random processes, multimode Galerkin-type approach, and numerical integration procedures are used to develop linear and nonlinear response solutions of simply supported cylindrical shells. Numerical results include time domain response histories, root-mean-square values and response spectral densities. Parametric studies are performed to investigate the effects of nonlinearity, shell thickness, core stiffness, and thickness.
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Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 19 • Issue 1 • January 2006
Pages: 46 - 54
Copyright
© 2006 ASCE.
History
Received: Jun 4, 2004
Accepted: Mar 14, 2005
Published online: Jan 1, 2006
Published in print: Jan 2006
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