Dynamics of Elastic Cable under Parametric and External Resonances
Publication: Journal of Engineering Mechanics
Volume 120, Issue 8
Abstract
Nonlinear dynamics of a heavy elastic suspended cable were investigated for application to a stack/wire system. Small oscillations of the cable at the support attached to the stack, the result of bending motion of the stack due to vortex shedding, lead to parametric and external excitation. Numerical analysis was used to predict the parametric and external resonances of the elastic suspended cable, which contained cubic nonlinearities due to cable stretching and quadratic nonlinearities due to equilibrium cable curvature in a tilted configuration. Numerical results agree well with the original stack/wire response. Additional parametric analyses were pursued to distinguish between parametric and external resonances and their couplings. It was found that excitation amplitudes and tilted angles play very important roles in parametric and external resonances.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 120 • Issue 8 • August 1994
Pages: 1786 - 1802
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: May 5, 1993
Published online: Aug 1, 1994
Published in print: Aug 1994
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