An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension
The present paper examines specific aspects of the non-linear dynamics of vertical marine cables and risers. The formulation of the dynamic system accounts for both elastic and bending effects and can satisfactorily describe the dynamic behavior of a riser or a tensioned vertical marine cable. The a...
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ftntunivathens:oai:dspace.lib.ntua.gr:123456789/34409 2023-05-15T14:20:54+02:00 An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension Chatjigeorgiou, IK Mavrakos, SA 2002 http://dspace.lib.ntua.gr/handle/123456789/34409 unknown info:eu-repo/semantics/openAccess free Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE Degrees of freedom (mechanics) Difference equations Dynamics Eigenvalues and eigenfunctions Finite element method Offshore structures Marine cables Marine risers info:eu-repo/semantics/conferenceObject 2002 ftntunivathens 2019-07-13T16:30:58Z The present paper examines specific aspects of the non-linear dynamics of vertical marine cables and risers. The formulation of the dynamic system accounts for both elastic and bending effects and can satisfactorily describe the dynamic behavior of a riser or a tensioned vertical marine cable. The analysis is restricted in the study of transverse vibrations of the dynamic system under consideration. We first examine the free vibration of the system and consequently the forced transverse vibration due to motions imposed longitudinally. That is, we examine the coupled longitudinal and transverse inducted motions in the 2D reference plane, including damping effects. We first examine the un-damped system and consequently we assess the effects of damping by incorporating the damping terms into the theoretical model. The study is conducted both theoretically and numerically and the resultant theoretical conclusions are evaluated with the corresponding numerical predictions in regards to the dynamic behavior of the system. Conference Object Arctic National Technical University of Athens (NTUA): DSpace |
institution |
Open Polar |
collection |
National Technical University of Athens (NTUA): DSpace |
op_collection_id |
ftntunivathens |
language |
unknown |
topic |
Degrees of freedom (mechanics) Difference equations Dynamics Eigenvalues and eigenfunctions Finite element method Offshore structures Marine cables Marine risers |
spellingShingle |
Degrees of freedom (mechanics) Difference equations Dynamics Eigenvalues and eigenfunctions Finite element method Offshore structures Marine cables Marine risers Chatjigeorgiou, IK Mavrakos, SA An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension |
topic_facet |
Degrees of freedom (mechanics) Difference equations Dynamics Eigenvalues and eigenfunctions Finite element method Offshore structures Marine cables Marine risers |
description |
The present paper examines specific aspects of the non-linear dynamics of vertical marine cables and risers. The formulation of the dynamic system accounts for both elastic and bending effects and can satisfactorily describe the dynamic behavior of a riser or a tensioned vertical marine cable. The analysis is restricted in the study of transverse vibrations of the dynamic system under consideration. We first examine the free vibration of the system and consequently the forced transverse vibration due to motions imposed longitudinally. That is, we examine the coupled longitudinal and transverse inducted motions in the 2D reference plane, including damping effects. We first examine the un-damped system and consequently we assess the effects of damping by incorporating the damping terms into the theoretical model. The study is conducted both theoretically and numerically and the resultant theoretical conclusions are evaluated with the corresponding numerical predictions in regards to the dynamic behavior of the system. |
format |
Conference Object |
author |
Chatjigeorgiou, IK Mavrakos, SA |
author_facet |
Chatjigeorgiou, IK Mavrakos, SA |
author_sort |
Chatjigeorgiou, IK |
title |
An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension |
title_short |
An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension |
title_full |
An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension |
title_fullStr |
An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension |
title_full_unstemmed |
An investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension |
title_sort |
investigation of the non-linear transverse vibrations of parametrically excited vertical marine risers and cables under tension |
publishDate |
2002 |
url |
http://dspace.lib.ntua.gr/handle/123456789/34409 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE |
op_rights |
info:eu-repo/semantics/openAccess free |
_version_ |
1766293372116402176 |