1. Home page
  2. Search

On the parametric excitation of vertical elastic slender structures and the effect of damping in marine applications

This item is provided by the institution :
National Technical University of Athens   

Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA   

see the original item page
in the repository's web site and access all digital files if the item*



On the parametric excitation of vertical elastic slender structures and the effect of damping in marine applications (EN)
Chatjigeorgiou, IK (EN)
journalArticle (EN)
2014-03-01T01:21:10Z
2004 (EN)
The dynamic behaviour of vertical slender structures for marine applications under parametric excitation is considered. The governing equations are treated using two different numerical schemes. The effect of parametric excitation is examined in cases where the excitation frequency lies in the vicinity of nonlinear resonances. First, the un-damped case is considered and the features of the dynamic response are properly identified and discussed. For explaining the particulars of the un-damped behaviour, the governing equations are treated analytically by applying the method of normal forms. The effect of damping is examined through comparative numerical computations of the system's behaviour. It is shown that the inclusion of hydrodynamic drag in the describing model eliminates the impacts of internal resonances excited due to the parametrically imposed motions. Finally, the paper demonstrates the significance of the terms that describe the coupling between the longitudinal and transverse vibrations. (C) 2004 Elsevier Ltd. All rights reserved. (EN)
Engineering, Ocean (EN)
Oceanography (EN)
Damping (EN)
Dynamic response (EN)
Parametric excitation (EN)
Marine applications (EN)
Vertical slender structures (EN)
Slender structures (EN)
Hydrodynamics (EN)
hydrodynamics (EN)
wave-structure interaction (EN)
damping (EN)
Excitation frequency (EN)
Numerical analysis (EN)
Drag (EN)
Normal forms (EN)
Nonlinear resonances (EN)
Resonance (EN)
Vibration control (EN)
Structural analysis (EN)
Applied Ocean Research (EN)
English
ELSEVIER SCI LTD (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)